St. Louis · June
Run in the pre-dawn.
Average high is 86°F with a 67°F overnight low. Humid heat punishes mid-morning — get out before sunrise for the only truly comfortable window.
Avg high / low
86° / 67°F
Humidity
68%
Rain days
14/mo
Wind
10 mph
What June feels like in St. Louis
Sunrise
05:37
Mid-month average
Sunset
20:26
Mid-month average
Time-of-day breakdown
Morning
Steady cool air, low wind, and good light. The standard runner window in most months.
Midday
Heat peaks here. Skip unless you've got shade and pace tolerance.
Evening
Cools off after sunset but still warm. Good for easy efforts; avoid hard intervals if you're chasing pace.
What to wear running in St. Louis in June
The kit for June in St. Louis: light, breathable, and moisture-wicking — singlet or short-sleeve only, a water-resistant cap or jacket on standby.
June vs the surrounding months
vs May
+10° avg high
-3 rain days
St. Louis in May →
June
86°F avg high
14 rain days
Best: pre-dawn
vs July
-2° avg high
-1 rain days
St. Louis in July →
Frequently Asked Questions
What is the best time of day to run in St. Louis in June?+
Pre-dawn. Humid heat punishes mid-morning — get out before sunrise for the only truly comfortable window.
What's the average temperature in St. Louis in June?+
Average high 86°F, average low 67°F.
How does June compare to surrounding months in St. Louis?+
Compared to May (avg high 76°F), June is warmer. Compared to July (avg high 88°F), June is cooler.
Does it rain often in St. Louis in June?+
Expect about 14 measurable rain days in June, on average.