Measurements:
°C
°F
St. Louis
62°F
NW 4 mph
Feels like: 62°F
Precip: 0%
World Resorts USA St. Louis Weather August Weather in St. Louis

St. Louis Weather: August

Average Day Temperature: 90.7°F
Average Night Temperature: 73.9°F
Number of Sunny Days: 17 days
Sunshine Hours: 13.1 - 14.1 hours
Number of Rainy Days: 5 days
Precipitation Totals: 3.2 in

Air Temperature in August, °F

Select Year: 2025 2024 2023

The highest day temperature in August 2025 was 106°F. The lowest night temperature was 62°F. The average values for day and night temperatures during August were 92.7°F и 74.6°F respectivly.

Sunny, Cloudy and Gloomy days

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

Precipitation Totals in August, in

Precipitation total in August for St. Louis is 3.2 in.

Wind Speed in August, mph

The average wind speed in August is 6.4 mph. It makes August the most windless month of the year for St. Louis.

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 August is 9.4 hours.

Best Time to Visit St. Louis
The most sunny months:
September 18 days
June 18 days
August 17 days
The most warm months:
July 92.4 °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
July 6 days
June 6 days
The most windy months:
April 10 mph
March 10 mph
February 9 mph

St. Louis on the Weather Map

USA Resorts:
NAME
Chicago +46
Hawaii +74
Honolulu +74
Houston +74
Las Vegas +54
Los Angeles +56
Maui +66
Miami +74
Miami Beach +78
New York +40
San Diego +58
San Francisco +50
Sarasota +72
Tampa +72
Washington +48
24 Hours Weather Forecast
St. Louis
Local time: 06:09
03 apr, friday
0900 70°F
N
9 mph
1200 78°F
N
13 mph
1500 84°F
N
15 mph
1800 82°F
N
13 mph
2100 76°F
N
14 mph
04 apr, saturday
0000 74°F
N
14 mph
0300 72°F
N
12 mph
0600 56°F
NE
11 mph