Chicago weather by month › August
Chicago in August: weather and what to expect
It’s fine, but not the best. September is more pleasant.
August weather in Chicago
Daytime high82°F 28°C
Night low63°F 17°C
Rain4.2 in 106 mm
AirA little humid
SunSunny
In August, Chicago averages highs of 82°F (28°C) and lows of 63°F (17°C), with 4.2 in (106 mm) of rain. The air feels a little humid and the sun is sunny. 1991–2020 averages, not a forecast.
Pack: light clothes and sun protection, a rain jacket or umbrella.
Places with the same weather in August
Match out of 100 for August, one city per country.
Jan · Feb · Mar · Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec