Weather · Saint Louis, United States
Saint Louis Weather in March
March in Saint Louis averages 8°C by day and -3°C at night, with about 83mm of rain. That makes it a reasonable time to visit.
Avg high
8°C
46°F
Avg low
-3°C
27°F
Rainfall
83mm
#4 wettest of 12
What to pack
Warm layers and a proper coat. Bring a compact umbrella for the odd shower.
Timing a trip around the weather? A Local Friend in Saint Louis builds it around the season for you.