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.

Mostly Cloudy

60°F

16°C

Humidity 26%
Wind Speed W 12 mph
Barometer 30.26 in (1024.8 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 6 Apr 5:54 pm CDT
Extended Forecast for

3 Miles WNW Carrollton IL

  • Tonight

    Tonight: A chance of rain showers after 1am, mixing with snow after 5am. Increasing clouds, with a low around 34. Northwest wind 7 to 14 mph becoming northeast after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 40%.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Tuesday

    Tuesday: Rain and snow showers likely before 11am, then a chance of rain showers between 11am and noon. Mostly cloudy, with a high near 51. East wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 51 °F

    Rain/Snow
    Likely then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Southeast wind 9 to 11 mph, with gusts as high as 24 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 72. Southeast wind 11 to 16 mph, with gusts as high as 26 mph.

    High: 72 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 51. South wind around 11 mph, with gusts as high as 22 mph.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 72.

    High: 72 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A chance of rain showers after 1am, mixing with snow after 5am. Increasing clouds, with a low around 34. Northwest wind 7 to 14 mph becoming northeast after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 40%.
Tuesday
Rain and snow showers likely before 11am, then a chance of rain showers between 11am and noon. Mostly cloudy, with a high near 51. East wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday Night
Mostly cloudy, with a low around 38. Southeast wind 9 to 11 mph, with gusts as high as 24 mph.
Wednesday
Partly sunny, with a high near 72. Southeast wind 11 to 16 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 51. South wind around 11 mph, with gusts as high as 22 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 75.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 72.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 78.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 81. Chance of precipitation is 60%.
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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:
5:36 pm CDT Apr 6, 2026
Forecast Valid:
6pm CDT Apr 6, 2026-6pm CDT Apr 13, 2026
 
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