Illinois City, IL Monthly Weather. The average temperature was on target for August with most of central Illinois coming in between 72-75 °F. Average daily temperatures in Illinois have increased by 1 to 2 degrees, according to the state climatologist. The city averages 5 days this month when the thermometer reaches into the 90s °F (over 32 °C). (Weather station:. The month with the lowest average high temperature is January (30. Past Weather in Champaign, Illinois, USA — Yesterday and Last 2 Weeks Time/General Weather Time Zone DST Changes Sun & Moon Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 71 °F. Chicago, IL 60°F Location Chevron down LocationNewsVideos Use Current Location Recent Chicago Illinois 60° No results found. Peter, Illinois on August 19, 1956. Constant exposure and activity lead to possible fatigue. August 2021 – Illinois State Climatologist Month: August 2021 August 2, 2021 July Brought High Humidity and Above Average Rainfall The preliminary statewide average July temperature was 74. 2023 05/10 – Donald ‘Gale’ Courson. We built this tool for people to enjoy (and we hope you did!), but also to highlight something important. In August, in Chicago, Illinois, the average high-temperature is 77. Average temperature in AugustSycamore, IL. Past Weather in Champaign, Illinois, USA — Yesterday and Last 2 Weeks Time/General Weather Time Zone DST Changes Sun & Moon Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 71 °F. Illinois averages 140 days at or below 32°F (north) but only 80 such days (south). or less (21 °C) Nearly every day in August warms to over 70 degrees Fahrenheit (21 degrees Celsius) in Chicago. Gale was born on August 12, 1937, in Centralia, IL, the son of Gerald and Lenora (VonBehren) Courson. Temperature In Louisville, the average high-temperature in August is essentially the same as in July - a still warm 82. Weather in Elwood, Illinois, USA — Yesterday or Further Back>Past Weather in Elwood, Illinois, USA — Yesterday or Further Back. Gale was born on August 12, 1937, in Centralia, IL, the son of Gerald and Lenora (VonBehren) Courson. Get the monthly weather forecast for Illinois City, IL, including daily high/low, historical averages, to help you plan ahead. Access hourly, 10 day and 15 day forecasts along with up to the minute reports and videos from AccuWeather. Gale was born on August 12, 1937, in Centralia,. The climate is very warm in that area in august. Past Weather in United States, USA — August 2022. 8 degrees below the 1991-2020 average and tied for the 45 th coldest on record going back to 1895. See past weather reports with the Almanacs weather history tool. (1–3 days): Light rain (total 0. Average low temperature in August: 61. Temperature In August, the average high-temperature is relatively the same as in July - a still warm 80. Get the monthly weather forecast for Champaign, IL, including daily high/low, historical averages, to help you plan ahead. Daytime temperatures usually reach 28°C in Chicago, Illinois in August with moderate heat and humidity, falling to 16°C at night. August 8-14: Heaviest rainfall during this period concentrated over parts of west central Illinois, with precipitation amounts a bit below normal over southeast Illinois. Overnight minimum temperatures have increased more than daytime maximum. Peoria, IL Monthly Weather. 31 inches above the 1991–2020 average and tied for the 18 th wettest on record going back to 18. Illinois weather in August 2023. Average temperature in AugustSycamore, IL. Get the monthly weather forecast for Peoria, IL, including daily high/low, historical averages, to help you plan ahead. How do you use weather history?. 8 degrees below the 1991–2020 average and tied for the 45 th coldest on record going back to 1895. How much does it rain in Chicago in August?. 8 inches (59 to 146 mm) of rainfall in August. Most cities in the northern half of the nation lose 2 to 3 minutes of daylight each day in August. Freezing Low Temperature average low temperature in °F Illinois Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0° 20° 40° 60° 80° BestPlaces. August 2021 – Illinois State Climatologist Month: August 2021 August 2, 2021 July Brought High Humidity and Above Average Rainfall The preliminary statewide average July temperature was 74. Heat index The average heat index in August is calculated to be a very hot 95°F (35°C). Get the monthly weather forecast for Freeport, IL, including daily high/low, historical averages, to help you plan ahead. LinkedIn cuts over 700 jobs, exits China app as demand wavers. August Normals For Temperature, and Precipitation for Chicago, IL Severe Storms and Heavy Rain Threats Springtime weather across the country with the threat of severe thunderstorms and heavy rainfall from the Ohio and mid-Mississippi River Valleys through Monday. Tornadoes in Illinois – Illinois State Climatologist. Illinois averages 10 days at or above 90°F (north) compared to just over 40 days (south). Prolonged exercise may result in heat cramps. Climate in Louisiana in august In the month of august, the mean temperature in Louisiana is 83°F (maximum temperature is 92°F and minimum temperature is 74°F). Temperatures above 100 °F (38 °C) make rare appearances here during August. Monthly: 1981-2010 normals History: 2007-2019. Donald Gale Courson, 85, of Farina, passed away Saturday, May 6, 2023. As of the start of August, growing degree day accumulation is ahead of normal in northern Illinois and slightly to much below normal in southern Illinois. Heat index The average heat index in August is computed to be a tropical 87. Get the monthly weather forecast for Champaign, IL, including daily high/low, historical averages, to help you plan ahead. Try searching for a city, zip code or point. Get the monthly weather forecast for Freeport, IL, including daily high/low, historical averages, to help you plan ahead. The last month of the summer, August, is another warm month in Louisville, Illinois, with an average temperature varying between 65. felt air temperature, apparent temperature), which combines air temperature and relative humidity, in August is computed to be 87. At 6:17 p. Most cities in the northern half of the nation lose 2 to 3 minutes of daylight each day in August. Station Data. The average temperature was on target for August with most of central Illinois coming in between 72-75 °F. In August, in Chicago, Illinois, the average high-temperature is 77. In August, the average high-temperature is almost the same as in July - a still moderately hot 78. How sunny is it in Illinois in August? There are normally 9 hours of bright sunshine each day in Chicago, Illinois in August - thats 67% of daylight hours. The month with the lowest average high temperature is January (27°F). In Columbia, Illinois, in August, the average low-temperature is 66. The last month of the summer, August, is also a moderately hot month in Lincoln, Illinois, with an average temperature fluctuating between 81. If anything, August highs were a little cooler than normal while. Updated: May 3, 2023 / 12:25 PM CDT. Past Weather in United States, USA — August 2022 Time/General Weather Time Zone DST Changes Sun & Moon Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 79 °F. The warmest month (with the highest average high temperature) is July (82°F). The average maximum daytime temperature in Chicago in August lies at 27. Fast Facts Two bouts of heavy rainfall occurred across northern Illinois on the mornings of August 7 and August 8, with combined totals as high as 4 to 7 inches in Winnebago, Ogle, Lee, and DeKalb Counties in far northern Illinois. Daytime temperatures usually reach 28°C in Chicago, Illinois in August with moderate heat and humidity, falling to 16°C at night. 51° F RealFeel® 49° Air Quality Excellent Wind SSE 6 mph Wind Gusts 11 mph Clear More Details Current Air Quality Today 5/5 15 AQI Excellent The air quality is ideal for most individuals; enjoy. in August, the average heat index (a. What is the temperature in August in Naperville? In Naperville, in August, the average high-temperature is 80. August 2022 Weather in United States — Graph °F. But its not normal for August to. SPRINGFIELD, Ill. Rapper Ja Rule and R&B singer Ashanti, will also. But this is moderate and you will not be too bothered by it. Past Weather in Champaign, Illinois, USA — Yesterday or >Past Weather in Champaign, Illinois, USA — Yesterday or. Average August temperatures in °F; High °F Low °F Place High °C Low °C; 82: 63: Aurora: 28: 17: 82: 62: Chicago Botanical Garden: 28: 17: 83: 67: Chicago Midway Airport: 28: 19: 83: 65: Chicago OHare Airport: 28: 18: 82: 61: Elgin: 28: 16: 82: 63: Joliet: 28: 17: 81: 60: Rochelle: 27: 15. August Daily Weather Records for Chicago Illinois. Climate of Illinois – Illinois State Climatologist>Climate of Illinois – Illinois State Climatologist. com brings you the most accurate monthly weather forecast for Chicago, IL with average/record and high/low temperatures, precipitation and more. What is the average humidity in August in Chicago? In Chicago, Illinois, the average relative humidity in August is 76%. Illinois tornado: 7 tornadoes confirmed in DeKalb, …. Average low temperature in August: 63. Wundermap. Springfield, IL Weather History. Seven tornadoes are confirmed to have hit northern Illinois, the National Weather Service said. But its not normal for August to get as cold as 50 °F (10 °C). 14 of the 15 hottest years on record have occurred since 2000 - and 2015 was the hottest of the lot. August 8-14: Heaviest rainfall during this period concentrated over parts of west central Illinois, with precipitation amounts a bit below normal over southeast Illinois. Illinois weather in August, averages. 195 billion in flood losses; 74% of these losses have occurred since 1985. 7°C), and the average low-temperature is 63. Weather in August 2022 in United States, USA. , the National Weather Service said a confirmed tornado was located near Sycamore, moving east at 25 mph. (Weather station: University Of Illinois-Willard Airport, USA). Note that heat index values are valued for light wind and location in the shade. real feel, apparent temperature), which takes the relative humidity and factors it into the air temperature reading, is estimated at 86°F (30°C). Average high temperature in August: 81. (Weather station: Quincy Municipal / Baldwin, USA). A derecho (long-lived line of thunderstorms with intense winds) produce widespread wind damage across Iowa, northern Illinois, and northern Indiana on August 10, 2020. High Winds Down Trees, Leave Thousands Without Power in Illinois. The watch will remain in effect until 1. See Hour-by-hour Forecast for upcoming weather. Minimum nighttime temperatures generally drop to 19°C (66°F) in Marion and 18°C (64°F) in Antioch. August is one of the best months for a lake cruise as the cool breeze on the water is refreshing on a hot day. 12AM 3AM 6AM 9AM 12PM 3PM 6PM 9PM 12AM 55 60 65 70 75. Precipitation (in) 12AM 3AM 6AM 9AM 12PM 3PM 6PM 9PM 12AM 0 5 10 15. 3in over 13 days, rainfall can happen for your trip. Temperature In Paris, the average high-temperature in August is relatively the same as in July - a still moderately hot 81. How warm is the sea around Illinois in August?. Lake cruises depart from Navy Pier or the Michigan Avenue bridge. Climate in Louisiana in august In the month of august, the mean temperature in Louisiana is 83°F (maximum temperature is 92°F and minimum temperature is 74°F). The Old Farmers Almanac weather history tool provides access to weather reports from over 1,300 weather stations in cities across the United States and Canada, reporting on past temperatures, precipitation, snow, pressure, dew point, and wind speeds. During August in Illinois, the average maximum temperature varies from high in Antioch with 27°C (80°F) to very high in Marion with 32°C (90°F). August is the last full month of summer, and many changes in weather conditions typically take place during the month, including changes in hurricane activity, the length of daylight,. The US Department of Homeland Security (DHS) and US Immigration and Customs Enforcement (ICE) announced on May 4, 2023 that employers will have until August 30, 2023 to complete the physical inspection of identity and employment eligibility documents for any employee whose Form I-9 was completed virtually pursuant to COVID-19-era temporary flexibility provisions. Past Weather in United States, USA — August 2022. 4in), mostly falling on Sat morning. Try searching for a city, zip code or point of interest. Average high temperature in August: 78. The thermometer dips to 60 °F (16 °C) or below on 4 nights. Temperatures averaged close to normal with a small area from Peoria to Bloomington that trended above normal during the second week of August. Average August temperatures in °F; High °F Low °F Place High °C Low °C; 82: 63: Aurora: 28: 17: 82: 62: Chicago Botanical Garden: 28: 17: 83: 67: Chicago Midway Airport: 28:. Fast Facts Two bouts of heavy rainfall occurred across northern Illinois on the mornings of August 7 and August 8, with combined totals as high as 4 to 7 inches in Winnebago, Ogle, Lee, and DeKalb Counties in far northern Illinois. See more current weather Past Weather in Quincy — Graph. LinkedIn, the social media network owned by Microsoft Corp that focuses on business professionals, said on Monday it would cut 716 jobs as demand wavers, while also shutting down its China-focused. Good Air Travel Fair Indoor Pests Moderate See all TODAY’S WEATHER FORECAST 5/8 54° Hi RealFeel® Sun 54° Rain and a t-storm; cooler TONIGHT’S WEATHER FORECAST 5/8 47° Lo RealFeel® 42° A shower. Weather History Archive for Places in Illinois. August 2021 – Illinois State Climatologist Month: August 2021 August 2, 2021 July Brought High Humidity and Above Average Rainfall The preliminary statewide average July temperature was 74. 7°C), and the average low-temperature is 64°F (17. Get the Illinois weather forecast. Chicago, IL 60°F Location Chevron down LocationNewsVideos Use Current Location Recent Chicago Illinois 60° No results found. Importantly, December and February are the 4th and 5th deadliest months in Illinois despite have the 4th and 5th fewest tornadoes, respectively. real feel, feels like), which combines relative humidity and air temperature, is calculated to be 87. August Normals For Temperature, and Precipitation for Chicago, IL Severe. The second deadliest month was August, mostly due to the 29 deaths associated with the August 28, 1990, Plainfield event. (Weather station: Kearney Municipal, USA). Weather ☀ ⛅ Chicago ☀ ⛅ August ☀ ⛅ Information on temperature, sunshine hours, water temperature & rainfall in August for Chicago. The last month of the summer, August, is also a moderately hot month in Paris, Illinois, with an average temperature ranging between max 81. Get the monthly weather forecast for Chillicothe, IL, including daily high/low, historical averages, to help you plan ahead. The Old Farmers Almanac weather history tool provides access to weather reports from over 1,300 weather stations in cities across the United States and Canada, reporting on past temperatures, precipitation, snow, pressure, dew point, and wind speeds. 2023 05/10 – Donald ‘Gale’ Courson. Climate of Illinois – Illinois State Climatologist. Things to Do in Chicago in August, 2023 (From a Local!)>BEST Things to Do in Chicago in August, 2023 (From a Local!). Gale was born on August 12, 1937, in Centralia, IL, the son of Gerald and Lenora (VonBehren) Courson. Get the monthly weather forecast for Illinois City, IL, including daily high/low, historical averages, to help you plan ahead. The National Weather Service office in Springfield, Illinois, issued a blowing-dust warning Monday for the first time ever after a blinding dust storm sprang up south of Springfield, Illinois. Donald “Gale” Courson, 85, of Farina, passed away Saturday, May 6, 2023. Louis native Nelly is set to headline the final night of the 2023 Illinois State Fair on. Illinois weather in August 2023 28 28°C max day temperature 9 9 hours of sunshine per day 9 9 days with some rainfall 16 16°C min night temperature 14 14 hours of daylight per day M Moderate heat & humidity 97 97 mm of monthly rainfall 8 8 (Very High) UV index 21 21°C sea temperature. Get the monthly weather forecast for Illinois City, IL, including daily high/low, historical averages, to help you plan ahead. August Temperature Highlights: Monthly average temperatures were 1 to 3 degrees above normal across most of central and southeast IL. in July, the average heat index (a. McHenry, IL Weather Forecast / AccuWeather Daily Radar MinuteCast Monthly Current Weather 5:45 AM 39° F RealFeel® 43° Air Quality Fair Wind SSE 1 mph Wind Gusts 1 mph Clear More Details. 2023 05/10 - Donald Gale Courson. In August, the average high-temperature is essentially the same as in July - a moderately hot 85. The last month of the summer, August, is also a moderately hot month in Lincoln, Illinois, with an average temperature fluctuating between 81. Illinois averages 10 days at or above 90°F (north) compared to just over 40 days (south). The Old Farmers Almanac weather history tool provides access to weather reports from over 1,300 weather stations in cities across the United States and Canada, reporting on past temperatures, precipitation, snow, pressure, dew point, and wind speeds. Lincoln IL Fair 77°F 25°C Get Detailed info Tonight Mostly Cloudy Low: 56°F Saturday Mostly Cloudy High: 77°F change location Central Illinois Weather Forecast. See past weather reports with the Almanacs weather history tool. Chicago weather in August (Illinois). August 2021 – Illinois State Climatologist Month: August 2021 August 2, 2021 July Brought High Humidity and Above Average Rainfall The preliminary statewide average July temperature was 74. Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 79 °F. Temperature In Sycamore, the average high-temperature in August is almost the same as in July - a still moderately hot 78. Past Weather in Elwood, Illinois, USA — Yesterday and Last 2 Weeks Time/General Weather Time Zone DST Changes Sun & Moon Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 52 °F. He graduated from LaGrove High School, Farina. (Video: The Washington Post) Gift Article Share A destructive derecho, or fast-moving violent windstorm, slammed the Chicago area Monday afternoon, unleashing damaging gusts that brought down trees. Average daily temperatures in Illinois have increased by 1 to 2 degrees, according to the state climatologist. Find out what the weather was like outside the day you were born!. Maps show total base 50-degree modified growing degree day accumulation (left) and growing degree day departures from the 1991–2020 normal (right) since April 1. Chicago, IL Monthly Weather Forecast. Humidity The average relative humidity in August in Lakemoor is 82%. August Normals For Temperature, and Precipitation for …. gov > Chicago, IL > August Daily Weather Records for Chicago Illinois. How sunny is it in Illinois in August? There are normally 9 hours of bright sunshine each day in Chicago, Illinois in August - thats 67% of daylight hours. We built this tool for people to enjoy (and we hope you did!), but also to highlight something important. August 2021 - Illinois State Climatologist Month: August 2021 August 2, 2021 July Brought High Humidity and Above Average Rainfall The preliminary statewide average July temperature was 74. Temperatures above 100 °F (38 °C) make rare appearances here during August. The last month of the summer, August, is also a moderately hot month in Paris, Illinois, with an average temperature ranging between max 81. Tornado Plots for Illinois. Past Weather in Elwood, Illinois, USA — Yesterday or Further Back. Peter, Illinois on August 19, 1956. Five factors control the continental climate of Illinois: 1) the sun, 2) weather systems, 3) topography, 4) urban areas, and 5) Lake Michigan. If anything, August highs were a little cooler than normal while evening lows were a little warmer than normal. Monthly averages Elgin Longitude: -88. In August, in Lakemoor, the average low-temperature is 61. 2023 05/10 – Donald ‘Gale’ Courson. August and Summer Season Climate Summary. Past Weather in Quincy, Illinois, USA — Yesterday and Last 2 Weeks Time/General Weather Time Zone DST Changes Sun & Moon Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 74 °F. In August, in Chicago, Illinois, the average high-temperature is 77. Past Weather in Elwood, Illinois, USA — Yesterday and Last 2 Weeks Time/General Weather Time Zone DST Changes Sun & Moon Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 52 °F. If your time is short, you can do a combination river and lake cruise. 78°F) (often the minimum temperature is noted at night). August Weather IllinoisPast Weather in United States, USA — August 2022 Time/General Weather Time Zone DST Changes Sun & Moon Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 79 °F. Illinois has 20. The National Weather Service has issued a severe thunderstorm watch for four Illinois counties as a squall line of thunderstorms approaches the region. 04 Average weather Elgin, IL - 60120. Updated: May 3, 2023 / 12:25 PM CDT. Louis native Nelly is set to headline the final night of the 2023 Illinois State Fair on Sunday, August 20. Rain Half the time, Chicago receives 2. Storm chaser video showed a tornado touching down and causing significant. Temperatures above 100 °F (38 °C) make rare appearances here during August. August, the last month of the summer in Sycamore, is also a moderately hot month, with an average temperature ranging between min 61. Chillicothe, IL Monthly Weather. Get the monthly weather forecast for Champaign, IL, including daily high/low, historical averages, to help you plan ahead. Be prepared with the most accurate 10-day forecast for Oglesby, IL with highs, lows, chance of precipitation from The Weather Channel and Weather. How sunny is it in Illinois in August? There are. August is one of the best months for a lake cruise as the cool breeze on the water is refreshing on a hot day. August is the last full month of summer, and many changes in weather conditions typically take place during the month, including changes in hurricane activity, the length of daylight,. Get the monthly weather forecast for Springfield, IL, including daily high/low, historical averages, to help you plan ahead. August 8-14: Heaviest rainfall during this period concentrated over parts of west central. Get the monthly weather forecast for Peoria, IL, including daily high/low, historical averages, to help you plan ahead. Elevated fire weather concerns may linger across portions of the Southwest. Days at or above 100°F are quite rare, occurring about every other year (north) and 2 days annually (south). August 10, 2021 the National Weather Service said a confirmed tornado was located near. The summers longest heat wave. com>Weather History for Galesburg, IL. The preliminary statewide average total July precipitation was 5. 47° 38° 3 54° 40° 4 52° 40° 5 69° 53° 6 73° 60° Sat 06 / Day 73° 46% SE 13 mph Showers in the morning, then cloudy in the afternoon. August 2021 – Illinois State Climatologist Month: August 2021 August 2, 2021 July Brought High Humidity and Above Average Rainfall The preliminary statewide average July temperature was 74. Average August temperatures in °F; High °F Low °F Place High °C Low °C; 82: 63: Aurora: 28: 17: 82: 62: Chicago Botanical Garden: 28: 17: 83: 67: Chicago Midway Airport: 28: 19: 83: 65: Chicago OHare Airport: 28: 18: 82: 61: Elgin: 28: 16: 82: 63: Joliet: 28: 17: 81: 60: Rochelle: 27: 15. 23 Hg (Aug 5, 4:56 am) Low: 53 °F (Aug 21, 6:56 am). Chicago, IL 60°F Location Chevron down LocationNewsVideos Use Current Location Recent Chicago Illinois 60° No results found. Average August temperatures in °F; High °F Low °F Place High °C Low °C; 82: 63: Aurora: 28: 17: 82: 62: Chicago Botanical Garden: 28: 17: 83: 67: Chicago Midway Airport: 28: 19: 83: 65: Chicago OHare Airport: 28: 18: 82: 61: Elgin: 28: 16: 82: 63: Joliet: 28: 17: 81: 60: Rochelle: 27: 15. 3°C), and the average low-temperature is 67. The National Weather Service office in Springfield, Illinois, issued a blowing-dust warning Monday for the first time ever after a blinding dust storm sprang up south of Springfield, Illinois. Daytime temperatures usually reach 28°C in Chicago, Illinois in August with moderate heat and humidity, falling to 16°C at night. Find historical weather data by zip code and access weather archives from more than 1,300 stations across the United States and Canada, dating back to 1960. The average minimum temperature goes down to around 17. What is the average humidity in August in. (Illinois, United States of America) This month is known as a warm month. Daytime temperatures usually reach 28°C in Chicago, Illinois in August with moderate heat and humidity, falling to 16°C at night. Warm (max 68°F on Sun afternoon, min 50°F on Sat night). The preliminary statewide average July temperature was 74. In August, in Lombard, Illinois, the average high-temperature is 81. In August, the average low-temperature is 64°F (17. Derecho hits Chicago with up to 100 mph winds, slams Upper …. August, the last month of the summer in Sycamore, is also a moderately hot month, with an average temperature ranging between min 61. 3°C), and the average low-temperature is 64. Get the monthly weather forecast for Champaign, IL, including daily high/low, historical averages, to help you plan ahead. Average temperature in AugustPeoria, IL. A stray shower or thunderstorm is possible. In August, in Springfield, Illinois, the average high-temperature is 81. Live weather stations near August * NOTE: not. com>Weather History Archive for Places in Illinois. Past Weather in Quincy, Illinois, USA — Yesterday or Further Back. August is the last full month of summer, and many changes in weather conditions typically take place during the month, including changes in hurricane activity, the length of daylight,. Get the monthly weather forecast for Springfield, IL, including daily high/low, historical averages, to help you plan ahead. August 2022 Temperature Records: No daily or monthly temperature records occurred during August 2022. Freeport, IL Monthly Weather. The last month of the summer, August, is also a moderately hot month in Lincoln, Illinois, with an average temperature fluctuating between 81. 5 days annually when the high temperature is over 90°, which is about average compared to other states in the U. August average low. Glendale Heights, IL Weather Forecast. Today 70°/ 50° 19% Mon 08 / Day 70° 19% NNE 14 mph Mostly cloudy skies early, then partly cloudy this afternoon. Over a 45-year period (1955-1999), Illinois had $5. Louis native Nelly is set to headline the final night of the 2023 Illinois State Fair on Sunday, August 20. Weather Today Weather Hourly 14 Day Forecast. See more current weather Select month:. The warmest month (with the highest average high temperature) is July (80. August 8-14: Heaviest rainfall during this period concentrated over parts of west central Illinois, with precipitation amounts a bit below normal over southeast Illinois. Weather in August 2022 in United States, USA Home Weather United States Past weeks Past Weather in United States, USA — August 2022 Time/General Weather Time Zone DST Changes Sun & Moon Weather Today Weather Hourly 14 Day Forecast Yesterday/Past Weather Climate (Averages) Currently: 79 °F. See more current weather Select month: August 2022 Weather in United States — Graph °F. Weather in August The last month of the summer, August, is another warm month in Cordova, Illinois, with an average temperature fluctuating between 80. High & Low Weather Summary for August 2022 Temperature Humidity Pressure; High: 96 °F (Aug 28, 5:56 pm) 100% (Aug 5, 4:56 am) 30. The average temperature was on target for August with most of central Illinois coming in between 72-75 °F. August Daily Weather Records for Chicago Illinois. The second deadliest month was August, mostly due to the 29 deaths associated with the August 28, 1990, Plainfield event. Get the monthly weather forecast for Illinois City, IL, including daily high/low, historical averages, to help you plan ahead. How do you use weather history?. Temperature In August, the average high-temperature is essentially the same as in July - a still moderately hot 81. During August in Illinois, the average maximum temperature varies from high in Antioch with 27°C (80°F) to very high in Marion with 32°C (90°F).