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

24°F

-4°C

Humidity 44%
Wind Speed W 14 mph
Barometer 29.98 in (1015.3 mb)
Dewpoint 5°F (-15°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 17 Jan 3:54 am CST
Extended Forecast for

4 Miles SW Carrollton IL

  • Overnight

    Overnight: A chance of flurries. Partly cloudy, with a low around 18. West wind around 14 mph, with gusts as high as 24 mph.

    Low: 18 °F

    Chance
    Flurries

  • Saturday

    Saturday: A chance of flurries. Sunny during the morning, then mostly cloudy during the afternoon, with a high near 22. West wind 13 to 18 mph, with gusts as high as 25 mph.

    High: 22 °F

    Chance
    Flurries

  • Saturday Night

    Saturday Night: A chance of flurries before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 11. West wind 7 to 14 mph, with gusts as high as 23 mph.

    Low: 11 °F

    Chance
    Flurries

  • Sunday

    Sunday: A 20 percent chance of snow after noon. Increasing clouds, with a high near 31. Southwest wind 8 to 15 mph, with gusts as high as 23 mph.

    High: 31 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 8. Northwest wind 10 to 18 mph, with gusts as high as 29 mph.

    Low: 8 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny and cold, with a high near 19.

    High: 19 °F

    Cold

  • Monday Night

    Monday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of flurries. Partly cloudy, with a low around 18. West wind around 14 mph, with gusts as high as 24 mph.
Saturday
A chance of flurries. Sunny during the morning, then mostly cloudy during the afternoon, with a high near 22. West wind 13 to 18 mph, with gusts as high as 25 mph.
Saturday Night
A chance of flurries before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 11. West wind 7 to 14 mph, with gusts as high as 23 mph.
Sunday
A 20 percent chance of snow after noon. Increasing clouds, with a high near 31. Southwest wind 8 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 8. Northwest wind 10 to 18 mph, with gusts as high as 29 mph.
M.L.King Day
Sunny and cold, with a high near 19.
Monday Night
Mostly clear, with a low around 9.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
Partly cloudy, with a low around 28.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
A slight chance of rain and snow. Partly cloudy, with a low around 19. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 31.
Thursday Night
A slight chance of snow and sleet. Partly cloudy, with a low around 17. Chance of precipitation is 20%.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 34.
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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:
3:16 am CST Jan 17, 2026
Forecast Valid:
4am CST Jan 17, 2026-6pm CST Jan 23, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation