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Weather in City of Saint Louis for August 2025

Your guide to City of Saint Louis weather in August - trends and predictions
  • In general, the average temperature in City of Saint Louis at the beginning of August is 31.7 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 34.6 °F by the end of August.

  • Expect significant rainfall in City of Saint Louis during August, with an average of 16 rainy days.

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Average dry days
15
Dry days
Average rainy days
16
Rainy days
Average snowy days
0
Snow days
Average temperatures
32°/20°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
67 %
Avg humidity

City of Saint Louis in August average weather

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Temperatures trend during August in City of Saint Louis

See the weather trend as well as the moving average line

August weather day by day

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Date Weather Temperatures Rain UV More
Aug. 1 Moderate or heavy rain shower
Moderate or heavy rain shower
34° /22° 5.3 mm 8
Aug. 2 Moderate or heavy rain shower
Moderate or heavy rain shower
30° /20° 46.6 mm 7
Aug. 3 Moderate or heavy rain shower
Moderate or heavy rain shower
32° /21° 35 mm 7
Aug. 4 Patchy rain possible
Patchy rain possible
32° /21° 1.5 mm 8
Aug. 5 Moderate or heavy rain shower
Moderate or heavy rain shower
34° /22° 16.9 mm 8
Aug. 6 Moderate rain at times
Moderate rain at times
34° /19° 6.8 mm 8
Aug. 7 Moderate rain at times
Moderate rain at times
26° /19° 3.5 mm 6
Aug. 8 Patchy rain possible
Patchy rain possible
30° /18° 0.2 mm 7
Aug. 9 Moderate or heavy rain shower
Moderate or heavy rain shower
27° /18° 4.3 mm 7
Aug. 10 Overcast
Overcast
29° /16° 0 mm 7
Aug. 11 Overcast
Overcast
32° /18° 0 mm 7
Aug. 12 Moderate or heavy rain shower
Moderate or heavy rain shower
28° /20° 12.6 mm 6
Aug. 13 Moderate or heavy rain shower
Moderate or heavy rain shower
27° /19° 8 mm 6
Aug. 14 Heavy rain at times
Heavy rain at times
28° /19° 5.8 mm 6
Aug. 15 Patchy rain possible
Patchy rain possible
28° /19° 6 mm 6
Aug. 16 Overcast
Overcast
31° /18° 3.4 mm 7
Aug. 17 Partly cloudy
Partly cloudy
32° /18° 1.9 mm 8
Aug. 18 Sunny
Sunny
29° /17° 0 mm 7
Aug. 19 Sunny
Sunny
30° /17° 0 mm 8
Aug. 20 Sunny
Sunny
33° /17° 0 mm 8
Aug. 21 Patchy rain possible
Patchy rain possible
31° /19° 0.2 mm 8
Aug. 22 Patchy rain possible
Patchy rain possible
31° /18° 0.3 mm 7
Aug. 23 Overcast
Overcast
35° /19° 0 mm 8
Aug. 24 Sunny
Sunny
37° /24° 0 mm 9
Aug. 25 Patchy rain possible
Patchy rain possible
36° /23° 2.1 mm 8
Aug. 26 Light rain shower
Light rain shower
37° /22° 2.1 mm 8
Aug. 27 Overcast
Overcast
36° /20° 0.4 mm 8
Aug. 28 Sunny
Sunny
35° /18° 0 mm 9
Aug. 29 Cloudy
Cloudy
37° /19° 0.5 mm 8
Aug. 30 Cloudy
Cloudy
33° /20° 7.6 mm 8
Aug. 31 Partly cloudy
Partly cloudy
28° /16° 3 mm 7
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Important Notice
Our weather forecast for City of Saint Louis in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the City of Saint Louis forecast closer to your planned date for the most up-to-date weather information.

City of Saint Louis in August - FAQ

What are the expected maximum and minimum temperatures in City of Saint Louis during August?
Expect warm days with temperatures around 32°, cooling to mild conditions of 20° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in City of Saint Louis during August?
Significant rainfall exceeding 290.1 mm is expected in City of Saint Louis during August, occurring over more than 16 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in City of Saint Louis during August?
The average wind speed in City of Saint Louis during August is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in City of Saint Louis

Explore the daily rainfall trends and prepare for City of Saint Louiss August weather 💧

UV exposure in City of Saint Louis during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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Location coordinates Where is City of Saint Louis?

Get accurate weather forecasts for City of Saint Louis, located at latitude 38.627 and longitude -90.198. Stay updated with localized weather information tailored for City of Saint Louis.

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