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Illinois weather in August 2020
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Below are average maximum temperatures at popular destinations in Illinois in August. Select a destination to see more weather parameters.
The August weather guide for Illinois shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
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How hot is it in Illinois in August?
Daytime temperatures usually reach 28°C in Chicago, Illinois in August with moderate heat and humidity, falling to 16°C at night.
How sunny is it in Illinois in August?
There are normally 9 hours of bright sunshine each day in Chicago, Illinois in August - that's 67% of daylight hours.
How warm is the sea around Illinois in August?
The average sea temperature around Chicago, Illinois in August is 21°C.
Does it rain in Illinois in August?
There are usually 9 days with some rain in Chicago, Illinois in August and the average monthly rainfall is 97mm.
Illinois sunrise & sunset times for August 2020
Browse the sunrise & sunset times for Illinois in August 2020. Select a month to view Illinois sunrise & sunset times for the next twelve months. The Illinois sunrise & sunset times shown below are for Chicago.
|Date||Sunrise times||Sunset times|
|Saturday, 1st August 2020||05:45||20:08|
|Sunday, 16th August 2020||06:00||19:48|
|Monday, 31st August 2020||06:16||19:25|
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Metric (°C / mm) | Imperial (°F / inches)
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