St. Louis · March
Run in the morning.
Cool month: average high 56°F, low 37°F. Expect 15 rain days — plan around the radar. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
Avg high / low
56° / 37°F
Humidity
67%
Rain days
15/mo
Wind
13 mph
What March feels like in St. Louis
Sunrise
07:09
Mid-month average
Sunset
19:08
Mid-month average
Time-of-day breakdown
Morning
Steady cool air, low wind, and good light. The standard runner window in most months.
Midday
Mild but UV and traffic peak. Workable if you don't mind shifting your pace.
Evening
Warm and runnable. Crowded routes but the air's typically calm.
What to wear running in St. Louis in March
The kit for March in St. Louis: a long-sleeve or light jacket for the first mile, a water-resistant cap or jacket on standby.
March vs the surrounding months
vs February
+11° avg high
+4 rain days
St. Louis in February →
March
56°F avg high
15 rain days
Best: morning
vs April
-10° avg high
+2 rain days
St. Louis in April →
Frequently Asked Questions
What is the best time of day to run in St. Louis in March?+
Morning. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
What's the average temperature in St. Louis in March?+
Average high 56°F, average low 37°F.
How does March compare to surrounding months in St. Louis?+
Compared to February (avg high 44°F), March is warmer. Compared to April (avg high 66°F), March is cooler.
Does it rain often in St. Louis in March?+
Expect about 15 measurable rain days in March, on average.