Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast

57°F

14°C

Humidity 90%
Wind Speed S 6 mph
Barometer 29.99 in (1015.5 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 5 Mar 5:54 pm CST
Extended Forecast for

3 Miles WNW Carrollton IL

  • Tonight

    Tonight: A 50 percent chance of rain and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 52. Calm wind becoming southeast 5 to 9 mph in the evening.

    Low: 52 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: A chance of rain and thunderstorms before 4pm, then a slight chance of rain and thunderstorms after 5pm.  Partly sunny, with a high near 74. South wind 10 to 17 mph, with gusts as high as 28 mph.  Chance of precipitation is 40%.

    High: 74 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after midnight.  Low around 54. South wind 11 to 16 mph, with gusts as high as 28 mph.  Chance of precipitation is 90%.

    Low: 54 °F

    Chance
    T-storms then
    Rain

  • Saturday

    Saturday: A chance of rain and thunderstorms before 9am, then a chance of rain between 9am and noon.  Cloudy, then gradually becoming mostly sunny, with a high near 66. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.  Chance of precipitation is 40%.

    High: 66 °F

    Chance Rain
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37. Northwest wind 5 to 8 mph.

    Low: 37 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 47.

    Low: 47 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly after midnight.  Partly cloudy, with a low around 57.

    Low: 57 °F

    Chance Rain

Detailed Forecast

Tonight
A 50 percent chance of rain and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 52. Calm wind becoming southeast 5 to 9 mph in the evening.
Friday
A chance of rain and thunderstorms before 4pm, then a slight chance of rain and thunderstorms after 5pm. Partly sunny, with a high near 74. South wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Friday Night
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after midnight. Low around 54. South wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.
Saturday
A chance of rain and thunderstorms before 9am, then a chance of rain between 9am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 66. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 37. Northwest wind 5 to 8 mph.
Sunday
Sunny, with a high near 65.
Sunday Night
Clear, with a low around 47.
Monday
Sunny, with a high near 76.
Monday Night
A 30 percent chance of rain, mainly after midnight. Partly cloudy, with a low around 57.
Tuesday
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after noon. High near 78. Chance of precipitation is 80%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 50. Chance of precipitation is 90%.
Wednesday
Rain likely. Mostly cloudy, with a high near 62. Chance of precipitation is 70%.
Wednesday Night
A 20 percent chance of rain. Partly cloudy, with a low around 33.
Thursday
Sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Carrollton IL
 39.29°N 90.46°W (Elev. 607 ft)
5:10 pm CST Mar 5, 2026
6pm CST Mar 5, 2026-6pm CDT Mar 12, 2026
 
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Additional Resources

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