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.

Fog/Mist

47°F

8°C

Humidity 86%
Wind Speed W 12 mph
Barometer 29.99 in (1015.5 mb)
Dewpoint 43°F (6°C)
Visibility 6.00 mi
Wind Chill42°F (6°C)
Last update 7 Mar 1:54 pm CST
Extended Forecast for

Chesterfield MO

  • This Afternoon

    This Afternoon: Mostly cloudy, with a steady temperature around 48. West wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 48 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 35. West wind 3 to 8 mph.

    Low: 35 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 7am. Otherwise, sunny, with a high near 68. Light southwest wind increasing to 5 to 9 mph in the morning.

    High: 68 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 49. Southwest wind around 7 mph.

    Low: 49 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 80. South wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after midnight. Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 9am, then a chance of showers between 9am and noon, then showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 83. Chance of precipitation is 60%.

    High: 83 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 50. Chance of precipitation is 90%.

    Low: 50 °F

    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before noon, then rain likely. High near 66. Chance of precipitation is 90%.

    High: 66 °F

    Rain then
    Rain Likely

Detailed Forecast

This Afternoon
Mostly cloudy, with a steady temperature around 48. West wind 10 to 14 mph, with gusts as high as 22 mph.
Tonight
Patchy fog after 3am. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 35. West wind 3 to 8 mph.
Sunday
Patchy fog before 7am. Otherwise, sunny, with a high near 68. Light southwest wind increasing to 5 to 9 mph in the morning.
Sunday Night
Clear, with a low around 49. Southwest wind around 7 mph.
Monday
Sunny, with a high near 80. South wind 6 to 11 mph, with gusts as high as 22 mph.
Monday Night
A 20 percent chance of showers after midnight. Mostly clear, with a low around 61.
Tuesday
A chance of showers and thunderstorms before 9am, then a chance of showers between 9am and noon, then showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 83. Chance of precipitation is 60%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 50. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm before noon, then rain likely. High near 66. Chance of precipitation is 90%.
Wednesday Night
A 20 percent chance of rain before midnight. Mostly clear, with a low around 33.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly cloudy, with a low around 42.
Friday
Partly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chesterfield MO
 38.65°N 90.6°W (Elev. 466 ft)
Last Update:
12:25 pm CST Mar 7, 2026
Forecast Valid:
2pm CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
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