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

29°F

-2°C

Humidity 75%
Wind Speed N 9 mph
Barometer 30.31 in (1026.7 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 7 Feb 3:54 am CST
Extended Forecast for

Whiteside MO

  • Today

    Today: Sunny, with a high near 37. Light and variable wind becoming east around 6 mph in the morning.

    High: 37 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. South wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 27 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49. Southeast wind 5 to 8 mph.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29. East wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58. Calm wind becoming south around 5 mph.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain before noon. Mostly cloudy, with a high near 48.

    High: 48 °F

    Slight Chance
    Rain then
    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 37. Light and variable wind becoming east around 6 mph in the morning.
Tonight
Mostly cloudy, with a low around 27. South wind 6 to 9 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 49. Southeast wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 29. East wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 58. Calm wind becoming south around 5 mph.
Monday Night
Mostly clear, with a low around 42.
Tuesday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 65.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 34.
Wednesday
A 20 percent chance of rain before noon. Mostly cloudy, with a high near 48.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 31.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 45.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 31.
Friday
A 30 percent chance of rain. Mostly cloudy, with a high near 44.
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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:
3:52 am CST Feb 7, 2026
Forecast Valid:
4am CST Feb 7, 2026-6pm CST Feb 13, 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