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.

Fog/Mist

49°F

9°C

Humidity 97%
Wind Speed S 5 mph
Barometer 30.05 in (1017.4 mb)
Dewpoint 48°F (9°C)
Visibility 6.00 mi
Wind Chill47°F (8°C)
Last update 25 Dec 4:54 am CST
Extended Forecast for

3 Miles WNW Carrollton IL

Dense Fog Advisory December 25, 05:05am until December 25, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory December 25, 05:05am until December 25, 10:00am

    NOW until 10:00am Thu

    Dense Fog Advisory

  • Christmas Day

    High: 60 °F

    Dense Fog
    then Cloudy

  • Tonight

    Tonight: Patchy dense fog between 10pm and midnight. Otherwise, mostly cloudy, with a low around 54. East wind 6 to 8 mph becoming southwest after midnight.

    Low: 54 °F

    Patchy Dense
    Fog then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 65. Southwest wind 5 to 10 mph becoming northwest in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 43. Light and variable wind.

    Low: 43 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, with a high near 63. Southeast wind 5 to 10 mph.

    High: 63 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A slight chance of rain between midnight and 3am, then a slight chance of rain and thunderstorms after 3am. Mostly cloudy, with a steady temperature around 59. Chance of precipitation is 20%.

    Low: 59 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Rain likely, with thunderstorms also possible after noon. Cloudy, with a high near 63. Chance of precipitation is 70%.

    High: 63 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A chance of rain and snow before midnight. Mostly cloudy, with a low around 17. Blustery. Chance of precipitation is 30%.

    Low: 17 °F

    Blustery.
    Chance
    Rain/Snow
    then Partly
    Cloudy

Detailed Forecast

Christmas Day
Widespread dense fog, mainly before 7am. Otherwise, cloudy, with a high near 60. Light and variable wind becoming east around 6 mph in the afternoon.
Tonight
Patchy dense fog between 10pm and midnight. Otherwise, mostly cloudy, with a low around 54. East wind 6 to 8 mph becoming southwest after midnight.
Friday
Mostly sunny, with a high near 65. Southwest wind 5 to 10 mph becoming northwest in the afternoon.
Friday Night
Increasing clouds, with a low around 43. Light and variable wind.
Saturday
Mostly cloudy, with a high near 63. Southeast wind 5 to 10 mph.
Saturday Night
A slight chance of rain between midnight and 3am, then a slight chance of rain and thunderstorms after 3am. Mostly cloudy, with a steady temperature around 59. Chance of precipitation is 20%.
Sunday
Rain likely, with thunderstorms also possible after noon. Cloudy, with a high near 63. Chance of precipitation is 70%.
Sunday Night
A chance of rain and snow before midnight. Mostly cloudy, with a low around 17. Blustery. Chance of precipitation is 30%.
Monday
Sunny, with a high near 25. Blustery.
Monday Night
Mostly clear, with a low around 15.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Partly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Carrollton IL
 39.29°N 90.46°W (Elev. 607 ft)
Last Update:
4:41 am CST Dec 25, 2025
Forecast Valid:
5am CST Dec 25, 2025-6pm CST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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