St. Louis · April
Run in the morning.
Cool month: average high 66°F, low 46°F. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
Avg high / low
66° / 46°F
Humidity
65%
Rain days
14/mo
Wind
13 mph
What April feels like in St. Louis
Sunrise
06:24
Mid-month average
Sunset
19:38
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 April
The kit for April in St. Louis: a long-sleeve or light jacket for the first mile, a water-resistant cap or jacket on standby.
April vs the surrounding months
vs March
+10° avg high
-2 rain days
St. Louis in March →
April
66°F avg high
14 rain days
Best: morning
vs May
-10° avg high
-4 rain days
St. Louis in May →
Frequently Asked Questions
What is the best time of day to run in St. Louis in April?+
Morning. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
What's the average temperature in St. Louis in April?+
Average high 66°F, average low 46°F.
How does April compare to surrounding months in St. Louis?+
Compared to March (avg high 56°F), April is warmer. Compared to May (avg high 76°F), April is cooler.
Does it rain often in St. Louis in April?+
Expect about 14 measurable rain days in April, on average.