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.

Fair

72°F

22°C

Humidity 30%
Wind Speed W 15 mph
Barometer 29.70 in (1005.2 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 7 Nov 12:54 pm CST
Extended Forecast for

4 Miles S Carrollton IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 69. West wind 9 to 14 mph, with gusts as high as 21 mph.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 41. West wind 3 to 7 mph.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Rain likely, mainly after 5pm. Mostly cloudy, with a high near 61. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 70%.

    High: 61 °F

    Mostly Cloudy
    then Rain
    Likely

  • Saturday Night

    Saturday Night: A 50 percent chance of rain before midnight. Mostly cloudy, with a low around 32. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.

    Low: 32 °F

    Chance Rain
    then Mostly
    Cloudy

  • Sunday

    Sunday: A slight chance of rain, mixing with snow after 9am, then gradually ending. Mostly sunny, with a high near 40. Northwest wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.

    High: 40 °F

    Slight Chance
    Rain/Snow
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Veterans Day

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

    High: 55 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 69. West wind 9 to 14 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 41. West wind 3 to 7 mph.
Saturday
Rain likely, mainly after 5pm. Mostly cloudy, with a high near 61. Calm wind becoming west 5 to 8 mph in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 70%.
Saturday Night
A 50 percent chance of rain before midnight. Mostly cloudy, with a low around 32. Northwest wind 9 to 16 mph, with gusts as high as 25 mph.
Sunday
A slight chance of rain, mixing with snow after 9am, then gradually ending. Mostly sunny, with a high near 40. Northwest wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 22.
Monday
Sunny, with a high near 41.
Monday Night
Mostly clear, with a low around 23.
Veterans Day
Partly sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Mostly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Carrollton IL
 39.24°N 90.4°W (Elev. 499 ft)
Last Update:
10:36 am CST Nov 7, 2025
Forecast Valid:
1pm CST Nov 7, 2025-6pm CST Nov 13, 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