Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

51°F

11°C

Humidity 54%
Wind Speed E 9 mph
Barometer 30.28 in (1025.3 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 7 Apr 7:54 pm CDT
Extended Forecast for

4 Miles SW Carrollton IL

  • Tonight

    Tonight: Partly cloudy, with a low around 40. Southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. Southeast wind 10 to 18 mph, with gusts as high as 30 mph.

    High: 73 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. South wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers after 1pm.  Mostly sunny, with a high near 76. Southwest wind around 10 mph.

    High: 76 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am.  Mostly cloudy, with a low around 56. South wind 6 to 10 mph.  Chance of precipitation is 40%.

    Low: 56 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 66. Chance of precipitation is 70%.

    High: 66 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 1pm.  Mostly cloudy, with a high near 71.

    High: 71 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 40. Southeast wind around 10 mph, with gusts as high as 20 mph.
Wednesday
Mostly sunny, with a high near 73. Southeast wind 10 to 18 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 53. South wind 10 to 14 mph, with gusts as high as 22 mph.
Thursday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 76. Southwest wind around 10 mph.
Thursday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 56. South wind 6 to 10 mph. Chance of precipitation is 40%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 66. Chance of precipitation is 70%.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 50.
Saturday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 71.
Saturday Night
Mostly cloudy, with a low around 58.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. Breezy.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 78. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Carrollton IL
 39.25°N 90.46°W (Elev. 600 ft)
8:06 pm CDT Apr 7, 2026
8pm CDT Apr 7, 2026-6pm CDT Apr 14, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database