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.

Fair

36°F

2°C

Humidity 93%
Wind Speed W 5 mph
Barometer 30.07 in (1018.7 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 8 Mar 1:54 am CDT
Extended Forecast for

Chesterfield MO

  • Overnight

    Overnight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 35. Light southwest wind.

    Low: 35 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 7am. Otherwise, sunny, with a high near 67. Light southwest wind increasing to 5 to 9 mph in the morning.

    High: 67 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 48. Southwest wind around 7 mph.

    Low: 48 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 79. South wind 6 to 13 mph, with gusts as high as 23 mph.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61. Southwest wind 7 to 9 mph.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Rain likely, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.

    High: 83 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 54. Chance of precipitation is 100%.

    Low: 54 °F

    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before noon, then a chance of rain. High near 67. Chance of precipitation is 100%.

    High: 67 °F

    Rain then
    Chance Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before midnight. Mostly clear, with a low around 32.

    Low: 32 °F

    Slight Chance
    Rain then
    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, mostly clear, with a low around 35. Light southwest wind.
Sunday
Patchy fog before 7am. Otherwise, sunny, with a high near 67. Light southwest wind increasing to 5 to 9 mph in the morning.
Sunday Night
Clear, with a low around 48. Southwest wind around 7 mph.
Monday
Sunny, with a high near 79. South wind 6 to 13 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 61. Southwest wind 7 to 9 mph.
Tuesday
Rain likely, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 54. Chance of precipitation is 100%.
Wednesday
Rain and possibly a thunderstorm before noon, then a chance of rain. High near 67. Chance of precipitation is 100%.
Wednesday Night
A 20 percent chance of rain before midnight. Mostly clear, with a low around 32.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly cloudy, with a low around 45.
Friday
Partly sunny, with a high near 68.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Partly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chesterfield MO
 38.65°N 90.6°W (Elev. 466 ft)
Last Update:
12:26 am CST Mar 8, 2026
Forecast Valid:
1am CST Mar 8, 2026-6pm CDT Mar 14, 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