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

Hazardous Weather Conditions

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

75°F

24°C

Humidity 69%
Wind Speed S 17 G 25 mph
Barometer 29.84 in (1010.0 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 14 Apr 10:54 pm CDT
Extended Forecast for

Whiteside MO

  • Tonight

    Tonight: Scattered showers and thunderstorms after 4am. Mostly cloudy, with a low around 66. Southwest wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    Low: 66 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly between 3pm and 5pm. Mostly cloudy, with a high near 79. South wind 9 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 79 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms before 4am, then scattered showers between 4am and 5am. Low around 60. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

    Low: 60 °F

    Showers

  • Thursday

    Thursday: Isolated showers after 7am. Partly sunny, then gradually becoming sunny, with a high near 80. West wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 80 °F

    Isolated
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58. Southwest wind around 5 mph becoming light and variable.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 52. Chance of precipitation is 80%.

    Low: 52 °F

    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 65. Chance of precipitation is 40%.

    High: 65 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Tonight
Scattered showers and thunderstorms after 4am. Mostly cloudy, with a low around 66. Southwest wind 8 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Wednesday
Showers and thunderstorms likely, mainly between 3pm and 5pm. Mostly cloudy, with a high near 79. South wind 9 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms before 4am, then scattered showers between 4am and 5am. Low around 60. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Thursday
Isolated showers after 7am. Partly sunny, then gradually becoming sunny, with a high near 80. West wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 58. Southwest wind around 5 mph becoming light and variable.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85.
Friday Night
Showers and possibly a thunderstorm. Low around 52. Chance of precipitation is 80%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 65. Chance of precipitation is 40%.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Sunny, with a high near 60.
Sunday Night
Clear, with a low around 39.
Monday
Sunny, with a high near 69.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Whiteside MO
 39.17°N 91.01°W (Elev. 712 ft)
Last Update:
10:31 pm CDT Apr 14, 2026
Forecast Valid:
11pm CDT Apr 14, 2026-6pm CDT Apr 21, 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