Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast

33°F

1°C

Humidity 78%
Wind Speed N 15 mph
Barometer 30.19 in (1022.7 mb)
Dewpoint 27°F (-3°C)
Visibility 8.00 mi
Wind Chill23°F (-5°C)
Last update 7 Dec 3:54 pm CST
Extended Forecast for

3 Miles E Dow IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 18. North wind 5 to 13 mph, with gusts as high as 20 mph.

    Low: 18 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 32. North wind around 5 mph becoming calm.

    High: 32 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 23. South wind 5 to 10 mph.

    Low: 23 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49. Southwest wind around 11 mph, with gusts as high as 20 mph.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. South wind 11 to 17 mph becoming west after midnight. Winds could gust as high as 26 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after midnight.  Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A 40 percent chance of snow, mainly before noon.  Mostly cloudy, with a high near 33.

    High: 33 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 18. North wind 5 to 13 mph, with gusts as high as 20 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 32. North wind around 5 mph becoming calm.
Monday Night
Partly cloudy, with a low around 23. South wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 49. Southwest wind around 11 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 37. South wind 11 to 17 mph becoming west after midnight. Winds could gust as high as 26 mph.
Wednesday
Partly sunny, with a high near 44.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 25.
Thursday
A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 33.
Thursday Night
Mostly cloudy, with a low around 17.
Friday
Partly sunny, with a high near 25.
Friday Night
Mostly cloudy, with a low around 5.
Saturday
Partly sunny and cold, with a high near 17.
Saturday Night
Mostly cloudy, with a low around 6.
Sunday
Mostly sunny, with a high near 24.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Dow IL
 39.04°N 90.27°W (Elev. 600 ft)
3:16 pm CST Dec 7, 2025
4pm CST Dec 7, 2025-6pm CST Dec 14, 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