Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast with Haze

34°F

1°C

Humidity 82%
Wind Speed N 16 G 23 mph
Barometer 30.14 in (1020.8 mb)
Dewpoint 29°F (-2°C)
Visibility 6.00 mi
Wind Chill24°F (-4°C)
Last update 7 Dec 1:54 pm CST
Extended Forecast for

3 Miles WNW Carrollton IL

  • This Afternoon

    This Afternoon: Cloudy, with a steady temperature around 31. North wind around 14 mph, with gusts as high as 23 mph.

    High: 31 °F

    Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 17. North wind 5 to 11 mph, with gusts as high as 20 mph.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 30. Light and variable wind.

    High: 30 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a temperature rising to around 31 by 2am. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47. Southwest wind around 11 mph, with gusts as high as 20 mph.

    High: 47 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow after midnight.  Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy
    then Chance
    Snow

  • Thursday

    Thursday: A 30 percent chance of snow.  Mostly cloudy, with a high near 33.

    High: 33 °F

    Chance Snow

Detailed Forecast

This Afternoon
Cloudy, with a steady temperature around 31. North wind around 14 mph, with gusts as high as 23 mph.
Tonight
Mostly cloudy, with a low around 17. North wind 5 to 11 mph, with gusts as high as 20 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 30. Light and variable wind.
Monday Night
Partly cloudy, with a temperature rising to around 31 by 2am. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 47. Southwest wind around 11 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 25.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 33.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 13.
Friday
Mostly sunny, with a high near 22.
Friday Night
Mostly cloudy, with a low around 3.
Saturday
Partly sunny and cold, with a high near 17.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Carrollton IL
 39.29°N 90.46°W (Elev. 607 ft)
11:06 am CST Dec 7, 2025
2pm CST Dec 7, 2025-6pm CST Dec 13, 2025
 
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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