Weather · Chicago, United States
Chicago Weather in August
Expect warm, wet in Chicago through August: highs near 27°C, lows around 19°C, 132mm of rain across the month. It's one of the best months to visit.
Avg high
27°C
81°F
Avg low
19°C
66°F
Rainfall
132mm
#3 wettest of 12
What to pack
Summer clothes by day; a light layer for evenings. Bring a compact umbrella for the odd shower.
Timing a trip around the weather? A Local Friend in Chicago builds it around the season for you.