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

65°F

18°C

Humidity 63%
Wind Speed SW 8 mph
Barometer 30.03 in (1016.4 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 22 Apr 1:54 am CDT
Extended Forecast for

Chesterfield MO

  • Overnight

    Overnight: Mostly clear, with a low around 58. Southwest wind around 8 mph.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80. Southwest wind 6 to 8 mph.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. South wind 3 to 6 mph.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83. South wind 6 to 15 mph, with gusts as high as 26 mph.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. South wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    Low: 63 °F

    Partly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 77. Chance of precipitation is 80%.

    High: 77 °F

    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 54.

    Low: 54 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 58. Southwest wind around 8 mph.
Wednesday
Mostly sunny, with a high near 80. Southwest wind 6 to 8 mph.
Wednesday Night
Mostly clear, with a low around 59. South wind 3 to 6 mph.
Thursday
Sunny, with a high near 83. South wind 6 to 15 mph, with gusts as high as 26 mph.
Thursday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 63. South wind 10 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Friday
Showers and possibly a thunderstorm. High near 77. Chance of precipitation is 80%.
Friday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 54.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Mostly cloudy, with a low around 54.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 30%.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 80. Chance of precipitation is 70%.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 51.
Tuesday
Sunny, with a high near 72.
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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:
1:26 am CDT Apr 22, 2026
Forecast Valid:
2am CDT Apr 22, 2026-6pm CDT Apr 28, 2026
 
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