What is the weather like in Chicago vs Indiana Dunes National Park in August?

In August, Chicago averages 28°C high / 20°C low with about 78 mm of rain; Indiana Dunes National Park averages 26°C high / 19°C low with about 94 mm.

Chicago vs Indiana Dunes National Park in August

Chicago is the better pick in August — 81 vs 76 on SeasonMap's comfort score. Chicago is hot, a little rain, while Indiana Dunes National Park is hot, rainy, muggy air.

Chicago vs Indiana Dunes National Park — August climate, side by side

	🇺🇸 Chicago	🇺🇸 Indiana Dunes National Park
Comfort score	81/100 (A)	76/100 (B)
Feels-like high	31°C	29°C
Avg high / low	28° / 20°	26° / 19°
Rainfall	78 mm	94 mm
Rainy days	8	7
Humidity	74%	77%
Air quality (AQI)	56	56

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Chicago vs Indiana Dunes National Park in August — FAQ

Is August better in Chicago or Indiana Dunes National Park?: Chicago is the better pick in August — 81 vs 76 on SeasonMap's comfort score. Chicago is hot, a little rain, while Indiana Dunes National Park is hot, rainy, muggy air.
What is the weather like in Chicago vs Indiana Dunes National Park in August?: In August, Chicago averages 28°C high / 20°C low with about 78 mm of rain; Indiana Dunes National Park averages 26°C high / 19°C low with about 94 mm.