St. Louis weather in September
Warm and pleasant, with occasional showers. Average highs of 27°C and lows of 17°C, with around 8 rainy days expected throughout the month.
✦ This is a recommended month to visit St. Louis. The combination of weather, atmosphere and experience is at its best.
Average high
27°C
Average low
17°C
Rainy days
8 days
Best months to visit
September
What to do in St. Louis in September
Whatever the weather, St. Louis rewards curious visitors. Here are some of the best ways to spend your time:
Explore
Dine
Culture
Nature
Shopping
Day trips
What to pack for September
Light layers work well — T-shirts and shorts for the day, a light jacket for evenings. Comfortable walking shoes are a must. Bring a compact umbrella just in case.
Browse other months
January
5C
Cold, with occasional showers.
February
7C
Cold, with occasional showers.
March
13C
Cool, with some rainy days.
April
19C
Mild and comfortable, with some rainy days.
May
24C
Mild and comfortable, with some rainy days.
June
30C
Hot and humid, with some rainy days.
July
31C
Hot and humid, with some rainy days.
August
30C
Hot and humid, with some rainy days.
Recommended
September (you are here)
27C
Warm and pleasant, with occasional showers.
October
20C
Mild and comfortable, with some rainy days.
November
12C
Cool, with occasional showers.
December
8C
Cold, with occasional showers.
Book your September trip to St. Louis
Find hotels, tours and experiences for the perfect escape.
