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.

A Few Clouds

61°F

16°C

Humidity 25%
Wind Speed W 13 mph
Barometer 30.25 in (1024.4 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 6 Apr 4:54 pm CDT
Extended Forecast for

4 Miles SW Carrollton IL

  • Tonight

    Tonight: A chance of rain showers after 1am, mixing with snow after 5am. Increasing clouds, with a low around 34. North wind 7 to 10 mph. Chance of precipitation is 40%.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Tuesday

    Tuesday: A chance of rain and snow showers before 11am, then a slight chance of rain showers between 11am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 51. East wind around 10 mph. Chance of precipitation is 40%.

    High: 51 °F

    Chance
    Rain/Snow
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. East wind around 10 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 72. Southeast wind 11 to 15 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 21 mph.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 74.

    High: 74 °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 40 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. North wind 7 to 10 mph. Chance of precipitation is 40%.
Tuesday
A chance of rain and snow showers before 11am, then a slight chance of rain showers between 11am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 51. East wind around 10 mph. Chance of precipitation is 40%.
Tuesday Night
Mostly cloudy, with a low around 38. East wind around 10 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 72. Southeast wind 11 to 15 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 21 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 74.
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 40 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:
4 Miles SW Carrollton IL
 39.25°N 90.46°W (Elev. 600 ft)
Last Update:
1:26 pm CDT Apr 6, 2026
Forecast Valid:
5pm CDT Apr 6, 2026-6pm CDT Apr 13, 2026
 
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