Measurements:
°C
°F
St. Louis
100°F
N 4 mph
Feels like: 106°F
Precip: 1%
World Resorts USA St. Louis Weather May Weather in St. Louis

St. Louis Weather: May

Average Day Temperature: 76.8°F
Average Night Temperature: 62.4°F
Number of Sunny Days: 13 days
Sunshine Hours: 13.8 - 14.7 hours
Number of Rainy Days: 7 days
Precipitation Totals: 3.5 in

Air Temperature in May, °F

Select Year: 2026 2025 2024

The highest day temperature in May 2026 was 93°F. The lowest night temperature was 43°F. The average values for day and night temperatures during May were 77.3°F и 60.7°F respectivly.

Sunny, Cloudy and Gloomy days

Most of the days in May are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in May, in

Precipitation total in May for St. Louis is 3.5 in. It makes may the most rainy month of the year.

Wind Speed in May, mph

The average wind speed in May is 8.7 mph.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for St. Louis in May is 8.6 hours.

Best Time to Visit St. Louis
The most sunny months:
June 18 days
September 18 days
July 17 days
The most warm months:
July 92.6 °F
August 90.7 °F
June 88.8 °F
The most cold months:
January 33.5 °F
February 39.8 °F
December 42.0 °F
The most rainy months:
May 7 days
June 6 days
April 6 days
The most windy months:
April 10 mph
March 10 mph
February 9 mph

St. Louis on the Weather Map

USA Resorts:
NAME
Boston +94
Chicago +82
Hawaii +82
Houston +106
Las Vegas +124
Los Angeles +92
Maui +78
Miami +92
Myrtle Beach +84
New York +84
San Diego +80
San Francisco +62
Santa Monica +80
Sarasota +92
Washington +88
24 Hours Weather Forecast
St. Louis
Local time: 14:09
05 aug, wednesday
1500 100°F
N
4 mph
1800 96°F
NW
7 mph
2100 84°F
NW
8 mph
06 aug, thursday
0000 76°F
NW
8 mph
0300 76°F
N
7 mph
0600 72°F
N
2 mph
0900 74°F
N
5 mph
1200 76°F
N
10 mph