What is the weather like in Chicago vs St. Louis in March?

In March, Chicago averages 10°C high / 1°C low with about 74 mm of rain; St. Louis averages 15°C high / 3°C low with about 113 mm.

Chicago vs St. Louis in March

St. Louis is the better pick in March — 69 vs 64 on SeasonMap's comfort score. St. Louis is cool, rainy, clean air, while Chicago is cold, a little rain, clean air.

Chicago vs St. Louis — March climate, side by side

	🇺🇸 Chicago	🇺🇸 St. Louis
Comfort score	64/100 (C)	69/100 (C)
Feels-like high	6°C	11°C
Avg high / low	10° / 1°	15° / 3°
Rainfall	74 mm	113 mm
Rainy days	9	10
Humidity	71%	65%
Air quality (AQI)	47	42

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

Month by month

Chicago 🇺🇸 United Statescold, a little rain, clean air · best September64
St. Louis 🇺🇸 United Statescool, rainy, clean air · best May69

Chicago vs St. Louis in March — FAQ

Is March better in Chicago or St. Louis?: St. Louis is the better pick in March — 69 vs 64 on SeasonMap's comfort score. St. Louis is cool, rainy, clean air, while Chicago is cold, a little rain, clean air.
What is the weather like in Chicago vs St. Louis in March?: In March, Chicago averages 10°C high / 1°C low with about 74 mm of rain; St. Louis averages 15°C high / 3°C low with about 113 mm.