Hazardous Weather Conditions

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

88°F

31°C

Humidity 61%
Wind Speed Vrbl 3 mph
Barometer 29.91 in (1011.9 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 12 Aug 2:54 pm CDT
Extended Forecast for

Chesterfield MO

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 90. West wind around 7 mph.

    High: 90 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 71. Southeast wind around 5 mph becoming calm  in the evening.

    Low: 71 °F

    Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87. North wind 3 to 7 mph.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 68. North wind around 6 mph becoming calm  in the evening.

    Low: 68 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 88. Light northeast wind.

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. West wind around 7 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 71. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 87. North wind 3 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 68. North wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 88. Light northeast wind.
Thursday Night
Mostly clear, with a low around 70.
Friday
Sunny, with a high near 95.
Friday Night
Mostly clear, with a low around 75.
Saturday
Sunny and hot, with a high near 97.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny and hot, with a high near 98.
Sunday Night
Partly cloudy, with a low around 76.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 96.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Chesterfield MO
 38.65°N 90.57°W (Elev. 512 ft)
2:36 pm CDT Aug 12, 2025
3pm CDT Aug 12, 2025-6pm CDT Aug 19, 2025
 
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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