What is the weather like in Kansas City vs St. Louis in September?

In September, Kansas City averages 28°C high / 17°C low with about 57 mm of rain; St. Louis averages 29°C high / 15°C low with about 83 mm.

Kansas City vs St. Louis in September

Kansas City and St. Louis are nearly tied in September — 86 vs 85 on SeasonMap's comfort score. Kansas City is hot, a little rain, clean air; St. Louis is hot, rainy, clean air.

Kansas City vs St. Louis — September climate, side by side

	🇺🇸 Kansas City	🇺🇸 St. Louis
Comfort score	86/100 (A)	85/100 (A)
Feels-like high	30°C	30°C
Avg high / low	28° / 17°	29° / 15°
Rainfall	57 mm	83 mm
Rainy days	4	5
Humidity	66%	67%
Air quality (AQI)	44	50

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

Month by month

Kansas City vs St. Louis in September — FAQ

Is September better in Kansas City or St. Louis?: Kansas City and St. Louis are nearly tied in September — 86 vs 85 on SeasonMap's comfort score. Kansas City is hot, a little rain, clean air; St. Louis is hot, rainy, clean air.
What is the weather like in Kansas City vs St. Louis in September?: In September, Kansas City averages 28°C high / 17°C low with about 57 mm of rain; St. Louis averages 29°C high / 15°C low with about 83 mm.