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

59°F

15°C

Humidity 36%
Wind Speed W 15 mph
Barometer 30.32 in (1026.7 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 6 Apr 12:54 pm CDT
Extended Forecast for

3 Miles WNW Carrollton IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 59. Northwest wind around 10 mph.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: A chance of rain showers after 1am, mixing with snow after 5am. Increasing clouds, with a low around 34. Northeast wind 8 to 10 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. Cloudy, then gradually becoming mostly sunny, with a high near 51. East wind around 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 51 °F

    Rain/Snow
    Likely then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Southeast wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 71. Southeast wind 11 to 16 mph, with gusts as high as 26 mph.

    High: 71 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 71. Chance of precipitation is 40%.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    T-storms

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 70. Chance of precipitation is 50%.

    High: 70 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 59. Northwest wind around 10 mph.
Tonight
A chance of rain showers after 1am, mixing with snow after 5am. Increasing clouds, with a low around 34. Northeast wind 8 to 10 mph. Chance of precipitation is 40%.
Tuesday
Rain and snow showers likely before 11am, then a 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 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 20 mph.
Wednesday
Mostly sunny, with a high near 71. Southeast wind 11 to 16 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 71. Chance of precipitation is 40%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 70. Chance of precipitation is 50%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
Saturday Night
A 20 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 80.
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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:
11:01 am CDT Apr 6, 2026
Forecast Valid:
12pm CDT Apr 6, 2026-6pm CDT Apr 12, 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