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

52°F

11°C

Humidity 31%
Wind Speed S 12 mph
Barometer 29.61 in (1002.7 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 24 Feb 5:54 pm CST
Extended Forecast for

3 Miles N Carrollton IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 30. Southwest wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 49. North wind 3 to 6 mph.

    High: 49 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Rain and snow likely, becoming all rain after 3am. Mostly cloudy, with a low around 31. East wind 5 to 7 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 31 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A 20 percent chance of rain before noon. Partly sunny, with a high near 50. East wind 5 to 7 mph becoming west in the afternoon.

    High: 50 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31. Light and variable wind becoming southwest around 6 mph after midnight.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 30. Southwest wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Wednesday
Mostly sunny, with a high near 49. North wind 3 to 6 mph.
Wednesday Night
Rain and snow likely, becoming all rain after 3am. Mostly cloudy, with a low around 31. East wind 5 to 7 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
A 20 percent chance of rain before noon. Partly sunny, with a high near 50. East wind 5 to 7 mph becoming west in the afternoon.
Thursday Night
Mostly clear, with a low around 31. Light and variable wind becoming southwest around 6 mph after midnight.
Friday
Sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 37.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 20%.
Sunday
A slight chance of rain and snow before noon, then a chance of snow. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 50%.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 45.
Monday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 29.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Carrollton IL
 39.33°N 90.4°W (Elev. 600 ft)
Last Update:
3:36 pm CST Feb 24, 2026
Forecast Valid:
6pm CST Feb 24, 2026-6pm CST Mar 3, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation