ClimateAverages

Chicago Weather in August

JanFebMarAprMayJunJulAugSepOctNovDec
Right now
23°C
Partly cloudy · feels like 26°C
Humidity
85%
Wind
10 kph SSW
UV
0.1
Rain
0%
Updated Jul 9, 06:45 AMWeather data by WeatherAPI.com
August daytime high
26.9°C
August overnight low
17.5°C
August average
22.2°C

In August, Chicago typically sees daytime highs of 26.9°C and overnight lows around 17.5°C. Compared to the annual average high of 14.1°C, August runs +12.9°C.

vs. annual avg high
+12.9°C
Rank among 12 months
#2 warmest
Hottest year overall
2011

Where August ranks in Chicago

JanFebMarAprMayJunJulAug27°SepOctNovDec

FAQ

What is the average temperature in Chicago in August?

August in Chicago averages a daytime high of 26.9°C and an overnight low of 17.5°C.

Is August warm or cold in Chicago?

August runs +12.9°C compared to Chicago's annual average high of 14.1°C, ranking #2 of 12 months by warmth.

What should I pack for Chicago in August?

Plan for daytime highs near 26.9°C and cooler evenings around 17.5°C.

Other months for Chicago

JanuaryFebruaryMarchAprilMayJuneJulySeptemberOctoberNovemberDecember

August in nearby cities

AuroraRockfordJolietNapervilleSpringfieldPeoriaNorth PeoriaElginWaukeganChampaignCiceroBloomington