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

17°F

-8°C

Humidity 41%
Wind Speed NW 16 G 24 mph
Barometer 30.46 in (1032.0 mb)
Dewpoint -3°F (-19°C)
Visibility 10.00 mi
Wind Chill2°F (-17°C)
Last update 19 Jan 10:54 am CST
Extended Forecast for

3 Miles WNW Carrollton IL

  • M.L.King Day

    M.L.King Day: Sunny and cold, with a high near 17. West wind 7 to 16 mph, with gusts as high as 24 mph.

    High: 17 °F

    Cold

  • Tonight

    Tonight: Increasing clouds, with a low around 12. West wind around 5 mph becoming light and variable.

    Low: 12 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35. South wind 5 to 10 mph.

    High: 35 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30. Southeast wind 9 to 15 mph becoming southwest after midnight. Winds could gust as high as 28 mph.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 41. West wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 41 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 21.

    High: 21 °F

    Mostly Cloudy

Detailed Forecast

M.L.King Day
Sunny and cold, with a high near 17. West wind 7 to 16 mph, with gusts as high as 24 mph.
Tonight
Increasing clouds, with a low around 12. West wind around 5 mph becoming light and variable.
Tuesday
Mostly sunny, with a high near 35. South wind 5 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 30. Southeast wind 9 to 15 mph becoming southwest after midnight. Winds could gust as high as 28 mph.
Wednesday
Sunny, with a high near 41. West wind 8 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 19.
Thursday
Mostly sunny, with a high near 33.
Thursday Night
Mostly cloudy, with a low around 14.
Friday
Mostly cloudy, with a high near 21.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around -2.
Saturday
A 20 percent chance of snow. Partly sunny and cold, with a high near 12.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 4.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Carrollton IL
 39.29°N 90.46°W (Elev. 607 ft)
Last Update:
1:26 pm CST Jan 19, 2026
Forecast Valid:
1pm CST Jan 19, 2026-6pm CST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation