National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fog/Mist

32°F

0°C

Humidity 96%
Wind Speed Calm
Barometer 30.22 in (1023.9 mb)
Dewpoint 31°F (-1°C)
Visibility 6.00 mi
Last update 6 Nov 6:54 am CST
Extended Forecast for

Ballwin MO

  • Today

    Today: Sunny, with a high near 65. Southeast wind 5 to 11 mph, with gusts as high as 21 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 55. Southeast wind 7 to 9 mph becoming southwest after midnight. Winds could gust as high as 22 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 72. West wind 7 to 10 mph.

    High: 72 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45. West wind around 6 mph becoming calm in the evening.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Partly sunny, with a high near 68. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 68 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 65. Southeast wind 5 to 11 mph, with gusts as high as 21 mph.
Tonight
Increasing clouds, with a low around 55. Southeast wind 7 to 9 mph becoming southwest after midnight. Winds could gust as high as 22 mph.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 72. West wind 7 to 10 mph.
Friday Night
Partly cloudy, with a low around 45. West wind around 6 mph becoming calm in the evening.
Saturday
A 20 percent chance of rain after noon. Partly sunny, with a high near 68. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Saturday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
Mostly clear, with a low around 24.
Monday
Sunny, with a high near 43.
Monday Night
Mostly clear, with a low around 28.
Veterans Day
Mostly sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 42.
Wednesday
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ballwin MO
 38.58°N 90.55°W (Elev. 584 ft)
Last Update:
6:36 am CST Nov 6, 2025
Forecast Valid:
7am CST Nov 6, 2025-6pm CST Nov 12, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation