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.

A Few Clouds

71°F

22°C

Humidity 27%
Wind Speed W 13 mph
Barometer 29.69 in (1005.0 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 7 Nov 3:54 pm CST
Extended Forecast for

3 Miles N Carrollton IL

  • Tonight

    Tonight: Increasing clouds, with a low around 40. West wind 3 to 7 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Rain, mainly after 4pm. High near 59. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 80%.

    High: 59 °F

    Mostly Cloudy
    then Rain

  • Saturday Night

    Saturday Night: A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 32. Northwest wind 8 to 15 mph, with gusts as high as 24 mph.

    Low: 32 °F

    Chance Rain
    then Slight
    Chance Rain

  • Sunday

    Sunday: A chance of flurries. Mostly sunny, with a high near 38. Northwest wind 15 to 18 mph, with gusts as high as 29 mph.

    High: 38 °F

    Chance
    Flurries

  • Sunday Night

    Sunday Night: A chance of flurries before midnight. Mostly clear, with a low around 23. Northwest wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 23 °F

    Chance
    Flurries

  • Monday

    Monday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 40. West wind 3 to 7 mph.
Saturday
Rain, mainly after 4pm. High near 59. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 80%.
Saturday Night
A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 32. Northwest wind 8 to 15 mph, with gusts as high as 24 mph.
Sunday
A chance of flurries. Mostly sunny, with a high near 38. Northwest wind 15 to 18 mph, with gusts as high as 29 mph.
Sunday Night
A chance of flurries before midnight. Mostly clear, with a low around 23. Northwest wind 10 to 13 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 41.
Monday Night
Mostly clear, with a low around 24.
Veterans Day
Partly sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 34.
Thursday
Sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Mostly sunny, with a high near 65.
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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:
3:16 pm CST Nov 7, 2025
Forecast Valid:
4pm CST Nov 7, 2025-6pm CST Nov 14, 2025
 
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