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

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Mostly Cloudy with Haze

78°F

26°C

Humidity 64%
Wind Speed E 3 mph
Barometer 29.98 in (1014.5 mb)
Dewpoint 65°F (18°C)
Visibility 6.00 mi
Heat Index80°F (27°C)
Last update 12 Jun 4:54 pm CDT
Extended Forecast for

Ballwin MO

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 68. Southeast wind 3 to 5 mph. Chance of precipitation is 70%.

    Low: 68 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 80. Southeast wind 5 to 7 mph. Chance of precipitation is 80%.

    High: 80 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely then
    Chance
    T-storms

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 84. Light and variable wind.

    High: 84 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 69. Light northeast wind.

    Low: 69 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.

    Low: 69 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88.

    High: 88 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 68. Southeast wind 3 to 5 mph. Chance of precipitation is 70%.
Friday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 80. Southeast wind 5 to 7 mph. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 84. Light and variable wind.
Saturday Night
Partly cloudy, with a low around 69. Light northeast wind.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88.
Monday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Juneteenth
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Ballwin MO
 38.58°N 90.55°W (Elev. 584 ft)
Last Update:
4:37 pm CDT Jun 12, 2025
Forecast Valid:
5pm CDT Jun 12, 2025-6pm CDT Jun 19, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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