Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

42°F

6°C

Humidity 89%
Wind Speed NE 5 mph
Barometer 30.03 in (1016.7 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 19 Mar 1:54 am CDT
Extended Forecast for

3 Miles WNW Carrollton IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 40. Light south wind.

    Low: 40 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 73. South wind 3 to 5 mph.

    High: 73 °F

    Becoming
    Sunny

  • Thursday Night

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

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. West 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 57.

    Low: 57 °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 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 40. Light south wind.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 73. South wind 3 to 5 mph.
Thursday Night
Mostly clear, with a low around 48. Calm wind becoming south around 5 mph after midnight.
Friday
Sunny, with a high near 80. West 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 57.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 37.
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.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Carrollton IL
 39.29°N 90.46°W (Elev. 607 ft)
1:30 am CDT Mar 19, 2026
2am CDT Mar 19, 2026-6pm CDT Mar 25, 2026
 
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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