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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

4 Miles S Carrollton IL

  • Today

    Today: Showers likely, mainly before noon. Cloudy, with a temperature falling to around 43 by 3pm. Breezy, with a northwest wind 13 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.

    High: 56 °F⇓

    Showers
    Likely and
    Breezy

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 28. Northwest wind 11 to 16 mph becoming light after midnight. Winds could gust as high as 28 mph.

    Low: 28 °F

    Gradual
    Clearing

  • Thursday

    Thursday: Sunny, with a high near 54. Light west wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41. Breezy, with a south wind 11 to 20 mph, with gusts as high as 33 mph.

    Low: 41 °F

    Mostly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 58. West wind 11 to 16 mph, with gusts as high as 26 mph.

    High: 58 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 62.

    High: 62 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Rain likely and possibly a thunderstorm, then rain after 1pm. High near 63. Breezy. Chance of precipitation is 80%.

    High: 63 °F

    Rain and
    Breezy

Detailed Forecast

Today
Showers likely, mainly before noon. Cloudy, with a temperature falling to around 43 by 3pm. Breezy, with a northwest wind 13 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 60%.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 28. Northwest wind 11 to 16 mph becoming light after midnight. Winds could gust as high as 28 mph.
Thursday
Sunny, with a high near 54. Light west wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 41. Breezy, with a south wind 11 to 20 mph, with gusts as high as 33 mph.
Friday
Partly sunny, with a high near 58. West wind 11 to 16 mph, with gusts as high as 26 mph.
Friday Night
Mostly cloudy, with a low around 34.
Saturday
Mostly cloudy, with a high near 62.
Saturday Night
A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 47.
Sunday
Rain likely and possibly a thunderstorm, then rain after 1pm. High near 63. Breezy. Chance of precipitation is 80%.
Sunday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 21. Blustery. Chance of precipitation is 30%.
Monday
Sunny, with a high near 36. Breezy.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Partly sunny, with a high near 42.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Carrollton IL
 39.24°N 90.4°W (Elev. 499 ft)
Last Update:
7:41 am CDT Mar 11, 2026
Forecast Valid:
9am CDT Mar 11, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation