Chicago weather in August 2024

Expect 28°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Chicago in August. Check more long-term weather averages for Chicago in August before you book your next holiday to Illinois in 2024/2025.

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

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The August weather guide for Illinois (Chicago) 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.

Metric (°C / mm) | Imperial (°F / inches)

More about the USA

How hot is it in Chicago in August?

Daytime temperatures usually reach 28°C in Chicago in August with moderate heat and humidity, falling to 16°C at night.

How sunny is it in Chicago in August?

There are normally 9 hours of bright sunshine each day in Chicago in August - that's 67% of daylight hours.

How warm is the sea around Chicago in August?

The average sea temperature around Chicago in August is 21°C.

Does it rain in Chicago in August?

There are usually 9 days with some rain in Chicago in August and the average monthly rainfall is 97mm.

Chicago August sunrise & sunset times

Browse the sunrise and sunset times for Chicago in August 2024. Select a month to view Chicago sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Thursday, 1st August 2024	05:45	20:08
Friday, 16th August 2024	06:00	19:48
Saturday, 31st August 2024	06:16	19:25

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Illinois - quick facts
Flight time^✝	8.5 hours
Time difference	UK -6 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Culture
Tourist info	Illinois Department of Commerce & Economic Opportunity