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.

Overcast

54°F

12°C

Humidity 87%
Wind Speed NE 10 mph
Barometer 29.98 in (1014.9 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 1 Apr 3:54 pm CDT
Extended Forecast for

4 Miles SW Carrollton IL

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 52. East wind around 10 mph.

    High: 52 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then a chance of showers. Temperature rising to around 59 by 5am. East wind around 11 mph becoming southeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

    Low: 52 °F⇑

    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 75. Breezy, with a south wind 17 to 23 mph, with gusts as high as 38 mph. Chance of precipitation is 50%.

    High: 75 °F

    Breezy.
    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 60. Southwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 81. South wind 6 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 90%.

    Low: 51 °F

    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.

    High: 59 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 52. East wind around 10 mph.
Tonight
Showers and thunderstorms before 4am, then a chance of showers. Temperature rising to around 59 by 5am. East wind around 11 mph becoming southeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 75. Breezy, with a south wind 17 to 23 mph, with gusts as high as 38 mph. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 60. Southwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 60%.
Friday
A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 81. South wind 6 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Friday Night
Showers and possibly a thunderstorm. Low around 51. Chance of precipitation is 90%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Sunny, with a high near 56.
Sunday Night
Clear, with a low around 36.
Monday
Sunny, with a high near 62.
Monday Night
Mostly cloudy, with a low around 37.
Tuesday
Mostly sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
Mostly sunny, with a high near 66.
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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:
1:51 pm CDT Apr 1, 2026
Forecast Valid:
4pm CDT Apr 1, 2026-6pm CDT Apr 8, 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