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.

A Few Clouds

89°F

32°C

Humidity 38%
Wind Speed S 10 G 18 mph
Barometer 30.15 in (1020.3 mb)
Dewpoint 60°F (16°C)
Visibility 9.00 mi
Heat Index89°F (32°C)
Last update 3 Oct 2:54 pm CDT
Extended Forecast for

Carrollton IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Sunny, with a high near 89. Southwest wind around 6 mph.

    High: 89 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 62. South wind 3 to 5 mph.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 85. South wind 5 to 10 mph.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 57. South wind around 7 mph.

    Low: 57 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 85. South wind 6 to 14 mph, with gusts as high as 21 mph.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 85.

    High: 85 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers before 1pm. Partly sunny, with a high near 77.

    High: 77 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Sunny, with a high near 89. Southwest wind around 6 mph.
Tonight
Mostly clear, with a low around 62. South wind 3 to 5 mph.
Saturday
Sunny, with a high near 85. South wind 5 to 10 mph.
Saturday Night
Clear, with a low around 57. South wind around 7 mph.
Sunday
Sunny, with a high near 85. South wind 6 to 14 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 61.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 85.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Tuesday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 49.
Friday
Sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Carrollton IL
 39.29°N 90.4°W (Elev. 568 ft)
Last Update:
2:36 pm CDT Oct 3, 2025
Forecast Valid:
3pm CDT Oct 3, 2025-6pm CDT Oct 10, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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