National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy and Breezy

73°F

23°C

Humidity 71%
Wind Speed S 22 G 35 mph
Barometer 29.73 in (1006.0 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 2 Apr 3:51 pm CDT
Extended Forecast for

Saint Charles MO

Wind Advisory April 2, 04:23pm until April 2, 07:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory April 2, 04:23pm until April 2, 07:00pm

    NOW until 7:00pm Thu

    Wind Advisory

  • This Afternoon

    High: 75 °F

    Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. Southeast wind 5 to 13 mph becoming south in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 50%.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 55. South wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.

    Low: 55 °F

    Showers

  • Saturday

    Saturday: Showers likely before 1pm. Mostly cloudy, with a steady temperature around 57. West wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 57 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 41.

    Low: 41 °F

    Clear

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 75. Breezy, with a south wind around 21 mph, with gusts as high as 37 mph.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 50%.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. Southeast wind 5 to 13 mph becoming south in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 50%.
Friday Night
Showers and possibly a thunderstorm. Low around 55. South wind around 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%.
Saturday
Showers likely before 1pm. Mostly cloudy, with a steady temperature around 57. West wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Sunny, with a high near 59.
Sunday Night
Clear, with a low around 41.
Monday
Sunny, with a high near 62.
Monday Night
A slight chance of rain and snow showers after 1am. Mostly cloudy, with a low around 37. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Charles MO
 38.8°N 90.51°W (Elev. 499 ft)
Last Update:
3:16 pm CDT Apr 2, 2026
Forecast Valid:
4pm CDT Apr 2, 2026-6pm CDT Apr 9, 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