What is the weather like in Chicago vs Gateway Arch National Park in July?

In July, Chicago averages 28°C high / 20°C low with about 117 mm of rain; Gateway Arch National Park averages 32°C high / 20°C low with about 139 mm.

Chicago vs Gateway Arch National Park in July

Chicago is the better pick in July — 76 vs 57 on SeasonMap's comfort score. Chicago is hot, rainy, muggy air, while Gateway Arch National Park is sweltering, rainy.

Chicago vs Gateway Arch National Park — July climate, side by side

	🇺🇸 Chicago	🇺🇸 Gateway Arch National Park
Comfort score	76/100 (B)	57/100 (D)
Feels-like high	31°C	36°C
Avg high / low	28° / 20°	32° / 20°
Rainfall	117 mm	139 mm
Rainy days	9	8
Humidity	76%	71%
Air quality (AQI)	62	73

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

Month by month

Chicago vs Gateway Arch National Park in July — FAQ

Is July better in Chicago or Gateway Arch National Park?: Chicago is the better pick in July — 76 vs 57 on SeasonMap's comfort score. Chicago is hot, rainy, muggy air, while Gateway Arch National Park is sweltering, rainy.
What is the weather like in Chicago vs Gateway Arch National Park in July?: In July, Chicago averages 28°C high / 20°C low with about 117 mm of rain; Gateway Arch National Park averages 32°C high / 20°C low with about 139 mm.