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

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

19°F

-7°C

Humidity 59%
Wind Speed NW 8 mph
Barometer 30.12 in (1020.4 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 15 Jan 3:54 am CST
Extended Forecast for

Whiteside MO

  • Today

    Today: Sunny, with a high near 34. Northwest wind 6 to 9 mph becoming south in the afternoon.

    High: 34 °F

    Sunny

  • Tonight

    Tonight: A chance of snow before 11pm, then scattered flurries after 5am. Cloudy, then gradually becoming partly cloudy, with a low around 30. South wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 50%.

    Low: 30 °F

    Chance Snow
    then Mostly
    Cloudy

  • Friday

    Friday: Partly sunny, with a high near 41. West wind 10 to 14 mph, with gusts as high as 30 mph.

    High: 41 °F

    Partly Sunny

  • Friday Night

    Friday Night: Scattered snow showers. Mostly cloudy, with a low around 18. West wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 18 °F

    Scattered
    Snow Showers

  • Saturday

    Saturday: Partly sunny, with a high near 22. West wind 10 to 13 mph, with gusts as high as 26 mph.

    High: 22 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 8.

    Low: 8 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 34. Northwest wind 6 to 9 mph becoming south in the afternoon.
Tonight
A chance of snow before 11pm, then scattered flurries after 5am. Cloudy, then gradually becoming partly cloudy, with a low around 30. South wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 50%.
Friday
Partly sunny, with a high near 41. West wind 10 to 14 mph, with gusts as high as 30 mph.
Friday Night
Scattered snow showers. Mostly cloudy, with a low around 18. West wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Saturday
Partly sunny, with a high near 22. West wind 10 to 13 mph, with gusts as high as 26 mph.
Saturday Night
Mostly clear, with a low around 8.
Sunday
Mostly sunny, with a high near 25.
Sunday Night
Partly cloudy, with a low around 11.
M.L.King Day
Mostly sunny, with a high near 23.
Monday Night
Mostly clear, with a low around 8.
Tuesday
Sunny, with a high near 29.
Tuesday Night
Partly cloudy, with a low around 19.
Wednesday
Mostly sunny, with a high near 42.
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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:
3:16 am CST Jan 15, 2026
Forecast Valid:
4am CST Jan 15, 2026-6pm CST Jan 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation