Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

41°F

5°C

Humidity 89%
Wind Speed NE 3 mph
Barometer 30.03 in (1016.8 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 19 Mar 2:54 am CDT
Extended Forecast for

4 Miles SW Carrollton IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 41. Light southeast wind.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 74. South wind 3 to 5 mph.

    High: 74 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48. Calm wind becoming southwest around 5 mph after midnight.

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. Southwest wind 6 to 10 mph.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48. West wind around 6 mph becoming light and variable  after midnight.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 41. Light southeast wind.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 74. South wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 48. Calm wind becoming southwest around 5 mph after midnight.
Friday
Sunny, with a high near 80. Southwest wind 6 to 10 mph.
Friday Night
Partly cloudy, with a low around 48. West wind around 6 mph becoming light and variable after midnight.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Sunny, with a high near 54.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Partly sunny, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Mostly sunny, with a high near 69.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Carrollton IL
 39.25°N 90.46°W (Elev. 600 ft)
3:07 am CDT Mar 19, 2026
3am CDT Mar 19, 2026-6pm CDT Mar 25, 2026
 
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