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

84°F

29°C

Humidity 25%
Wind Speed W 15 mph
Barometer 29.89 in (1011.9 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 20 Mar 12:54 pm CDT
Extended Forecast for

4 Miles SW Carrollton IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 84. West wind 11 to 14 mph, with gusts as high as 24 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Northwest wind 5 to 7 mph becoming light and variable after midnight.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 82. Light and variable wind becoming southwest 5 to 8 mph in the morning.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61. South wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 83. Southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 84. West wind 11 to 14 mph, with gusts as high as 24 mph.
Tonight
Partly cloudy, with a low around 49. Northwest wind 5 to 7 mph becoming light and variable after midnight.
Saturday
Sunny, with a high near 82. Light and variable wind becoming southwest 5 to 8 mph in the morning.
Saturday Night
Mostly clear, with a low around 61. South wind 7 to 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 83. Southwest wind 10 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 41.
Wednesday
Mostly cloudy, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
A 20 percent chance of rain. Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Carrollton IL
 39.25°N 90.46°W (Elev. 600 ft)
Last Update:
1:26 pm CDT Mar 20, 2026
Forecast Valid:
1pm CDT Mar 20, 2026-6pm CDT Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation