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

4°F

-16°C

Humidity 63%
Wind Speed NW 9 mph
Barometer 30.39 in (1029.7 mb)
Dewpoint -6°F (-21°C)
Visibility 10.00 mi
Wind Chill-10°F (-23°C)
Last update 25 Jan 11:54 pm CST
Extended Forecast for

4 Miles SW Carrollton IL

Extreme Cold Warning until January 26, 12:00pm
Click here for hazard details and duration
Extreme Cold Warning
  •  
    Extreme Cold Warning until January 26, 12:00pm

    NOW until 12:00pm Mon

    Extreme Cold Warning

  • Overnight

    Low: -8 °F

    Mostly Clear

  • Monday

    Monday: Sunny and cold, with a high near 14. Wind chill values as low as -25. Northwest wind 8 to 10 mph becoming southwest in the afternoon.

    High: 14 °F

    Cold

  • Monday Night

    Monday Night: Mostly clear, with a temperature falling to near 5 by 8pm, then rising to around 14 during the remainder of the night. Wind chill values as low as -10. Southwest wind 8 to 13 mph, with gusts as high as 26 mph.

    Low: 5 °F⇑

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 26. Northwest wind 7 to 13 mph, with gusts as high as 25 mph.

    High: 26 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around -3. Northwest wind around 6 mph becoming calm in the evening.

    Low: -3 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -2.

    Low: -2 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny and cold, with a high near 16.

    High: 16 °F

    Cold

Detailed Forecast

Overnight
Mostly clear, with a low around -8. Wind chill values as low as -20. Northwest wind around 8 mph.
Monday
Sunny and cold, with a high near 14. Wind chill values as low as -25. Northwest wind 8 to 10 mph becoming southwest in the afternoon.
Monday Night
Mostly clear, with a temperature falling to near 5 by 8pm, then rising to around 14 during the remainder of the night. Wind chill values as low as -10. Southwest wind 8 to 13 mph, with gusts as high as 26 mph.
Tuesday
Sunny, with a high near 26. Northwest wind 7 to 13 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around -3. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 24.
Wednesday Night
Partly cloudy, with a low around -2.
Thursday
Partly sunny and cold, with a high near 16.
Thursday Night
Mostly cloudy, with a low around 1.
Friday
Mostly sunny and cold, with a high near 16.
Friday Night
Mostly clear, with a low around -3.
Saturday
Sunny and cold, with a high near 20.
Saturday Night
Partly cloudy, with a low around 5.
Sunday
Partly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Carrollton IL
 39.25°N 90.46°W (Elev. 600 ft)
Last Update:
10:16 pm CST Jan 25, 2026
Forecast Valid:
12am CST Jan 26, 2026-6pm CST Feb 1, 2026
 
Forecast Discussion
 
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