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.

Fair

48°F

9°C

Humidity 66%
Wind Speed SE 10 mph
Barometer 29.66 in (1004.4 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 9 Dec 4:54 pm CST
Extended Forecast for

3 Miles E Dow IL

Wind Advisory December 10, 03:00am until December 10, 12:00pm
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: A slight chance of rain between midnight and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 36. South wind 15 to 18 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Increasing clouds, with a temperature falling to around 32 by 5pm. Breezy, with a northwest wind 14 to 24 mph, with gusts as high as 47 mph.

    High: 39 °F⇓

    Increasing
    Clouds and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 23. Northwest wind 5 to 11 mph.

    Low: 23 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 35. Light and variable wind becoming south 5 to 7 mph in the morning.

    High: 35 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 31. Southeast wind around 7 mph becoming west after midnight.

    Low: 31 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 29.

    High: 29 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 6.

    Low: 6 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of rain between midnight and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 36. South wind 15 to 18 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 20%.
Wednesday
Increasing clouds, with a temperature falling to around 32 by 5pm. Breezy, with a northwest wind 14 to 24 mph, with gusts as high as 47 mph.
Wednesday Night
Mostly cloudy, with a low around 23. Northwest wind 5 to 11 mph.
Thursday
Mostly cloudy, with a high near 35. Light and variable wind becoming south 5 to 7 mph in the morning.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 31. Southeast wind around 7 mph becoming west after midnight.
Friday
Partly sunny, with a high near 39.
Friday Night
Mostly cloudy, with a low around 20.
Saturday
Mostly cloudy, with a high near 29.
Saturday Night
Mostly cloudy, with a low around 6.
Sunday
Sunny, with a high near 21.
Sunday Night
Partly cloudy, with a low around 11.
Monday
Mostly sunny, with a high near 35.
Monday Night
Mostly cloudy, with a low around 22.
Tuesday
Mostly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Dow IL
 39.04°N 90.27°W (Elev. 600 ft)
Last Update:
4:56 pm CST Dec 9, 2025
Forecast Valid:
5pm CST Dec 9, 2025-6pm CST Dec 16, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation