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.

Overcast

72°F

22°C

Humidity 76%
Wind Speed S 12 mph
Barometer 29.84 in (1010.2 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 15 Apr 4:54 pm CDT
Extended Forecast for

Whiteside MO

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 73. South wind around 9 mph, with gusts as high as 23 mph.

    High: 73 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then a chance of showers between 1am and 3am. Low around 60. South wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    Low: 60 °F

    T-storms then
    Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 81. West wind around 7 mph.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. Calm wind becoming south around 6 mph after midnight.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 84. South wind 6 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 84 °F

    Mostly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 46. Chance of precipitation is 90%.

    Low: 46 °F

    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 58. Chance of precipitation is 30%.

    High: 58 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 73. South wind around 9 mph, with gusts as high as 23 mph.
Tonight
Showers and thunderstorms before 1am, then a chance of showers between 1am and 3am. Low around 60. South wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Thursday
Sunny, with a high near 81. West wind around 7 mph.
Thursday Night
Mostly clear, with a low around 59. Calm wind becoming south around 6 mph after midnight.
Friday
Showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 84. South wind 6 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Friday Night
Showers and possibly a thunderstorm. Low around 46. Chance of precipitation is 90%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 58. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 63.
Sunday Night
Clear, with a low around 40.
Monday
Sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 74.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 53.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Whiteside MO
 39.17°N 91.01°W (Elev. 712 ft)
Last Update:
4:36 pm CDT Apr 15, 2026
Forecast Valid:
5pm CDT Apr 15, 2026-6pm CDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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