What is the weather like in Chicago vs Indianapolis in October?

In October, Chicago averages 18°C high / 9°C low with about 117 mm of rain; Indianapolis averages 20°C high / 9°C low with about 80 mm.

Chicago vs Indianapolis in October

Indianapolis is the better pick in October — 82 vs 73 on SeasonMap's comfort score. Indianapolis is nice, a little rain, clean air, while Chicago is nice, rainy, clean air.

Chicago vs Indianapolis — October climate, side by side

	🇺🇸 Chicago	🇺🇸 Indianapolis
Comfort score	73/100 (B)	82/100 (A)
Feels-like high	16°C	17°C
Avg high / low	18° / 9°	20° / 9°
Rainfall	117 mm	80 mm
Rainy days	10	8
Humidity	70%	68%
Air quality (AQI)	35	33

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

Month by month

Chicago vs Indianapolis in October — FAQ

Is October better in Chicago or Indianapolis?: Indianapolis is the better pick in October — 82 vs 73 on SeasonMap's comfort score. Indianapolis is nice, a little rain, clean air, while Chicago is nice, rainy, clean air.
What is the weather like in Chicago vs Indianapolis in October?: In October, Chicago averages 18°C high / 9°C low with about 117 mm of rain; Indianapolis averages 20°C high / 9°C low with about 80 mm.