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

76°F

24°C

Humidity 42%
Wind Speed S 10 G 17 mph
Barometer 29.94 in (1013.2 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 12 Apr 2:54 pm CDT
Extended Forecast for

Chesterfield MO

  • This Afternoon

    This Afternoon: A 40 percent chance of showers. Mostly cloudy, with a high near 79. South wind around 15 mph, with gusts as high as 30 mph.

    High: 79 °F

    Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 67. Southwest wind 10 to 15 mph, with gusts as high as 29 mph.

    Low: 67 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 87. South wind 9 to 15 mph, with gusts as high as 25 mph.

    High: 87 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 70. Southwest wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 70 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 89 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 69.

    Low: 69 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 82. Chance of precipitation is 70%.

    High: 82 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Thursday

    Thursday: A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 86.

    High: 86 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
A 40 percent chance of showers. Mostly cloudy, with a high near 79. South wind around 15 mph, with gusts as high as 30 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 67. Southwest wind 10 to 15 mph, with gusts as high as 29 mph.
Monday
Mostly sunny, with a high near 87. South wind 9 to 15 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 70. Southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 69.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 82. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Thursday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 63.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 64.
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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:
2:56 pm CDT Apr 12, 2026
Forecast Valid:
3pm CDT Apr 12, 2026-6pm CDT Apr 19, 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