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

64°F

18°C

Humidity 30%
Wind Speed SW 7 mph
Barometer 30.03 in (1016.8 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 25 Mar 10:54 am CDT
Extended Forecast for

Whiteside MO

  • Today

    Today: Mostly sunny, with a high near 79. South wind 7 to 9 mph, with gusts as high as 20 mph.

    High: 79 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. South wind 7 to 10 mph, with gusts as high as 23 mph.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91. Southwest wind 10 to 13 mph, with gusts as high as 28 mph.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Rain and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then rain likely after 4am. Low around 41. Southwest wind 7 to 14 mph becoming northeast after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 90%.

    Low: 41 °F

    Showers

  • Friday

    Friday: Rain likely, mainly before 7am. Partly sunny, with a high near 52. North wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 52 °F

    Rain Likely
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 79. South wind 7 to 9 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 63. South wind 7 to 10 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 91. Southwest wind 10 to 13 mph, with gusts as high as 28 mph.
Thursday Night
Rain and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then rain likely after 4am. Low around 41. Southwest wind 7 to 14 mph becoming northeast after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 90%.
Friday
Rain likely, mainly before 7am. Partly sunny, with a high near 52. North wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Friday Night
Mostly clear, with a low around 31.
Saturday
Sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 65.
Sunday Night
A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 53.
Monday
A 20 percent chance of rain. Mostly sunny, with a high near 81.
Monday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 60.
Tuesday
A 40 percent chance of rain and thunderstorms. Partly sunny, with a high near 80.
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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 am CDT Mar 25, 2026
Forecast Valid:
11am CDT Mar 25, 2026-6pm CDT Mar 31, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation