What is the weather like in Gateway Arch National Park vs Indianapolis in October?

In October, Gateway Arch National Park averages 22°C high / 8°C low with about 72 mm of rain; Indianapolis averages 20°C high / 9°C low with about 80 mm.

Gateway Arch National Park vs Indianapolis in October

Gateway Arch National Park is the better pick in October — 87 vs 82 on SeasonMap's comfort score. Gateway Arch National Park is nice, a little rain, clean air, while Indianapolis is nice, a little rain, clean air.

Gateway Arch National Park vs Indianapolis — October climate, side by side

	🇺🇸 Gateway Arch National Park	🇺🇸 Indianapolis
Comfort score	87/100 (A)	82/100 (A)
Feels-like high	20°C	17°C
Avg high / low	22° / 8°	20° / 9°
Rainfall	72 mm	80 mm
Rainy days	6	8
Humidity	66%	68%
Air quality (AQI)	36	33

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

Month by month

Gateway Arch National Park 🇺🇸 United Statesnice, a little rain, clean air · best April87
Indianapolis 🇺🇸 United Statesnice, a little rain, clean air · best September82

Gateway Arch National Park vs Indianapolis in October — FAQ

Is October better in Gateway Arch National Park or Indianapolis?: Gateway Arch National Park is the better pick in October — 87 vs 82 on SeasonMap's comfort score. Gateway Arch National Park is nice, a little rain, clean air, while Indianapolis is nice, a little rain, clean air.
What is the weather like in Gateway Arch National Park vs Indianapolis in October?: In October, Gateway Arch National Park averages 22°C high / 8°C low with about 72 mm of rain; Indianapolis averages 20°C high / 9°C low with about 80 mm.