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

37°F

3°C

Humidity 65%
Wind Speed NW 6 mph
Barometer 30.30 in (1026.1 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 12 Mar 2:54 am CDT
Extended Forecast for

3 Miles WNW Carrollton IL

Wind Advisory March 12, 10:00pm until March 13, 11:00am
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: Clear, with a low around 29. West wind around 7 mph.

    Low: 29 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 54. West wind 5 to 14 mph, with gusts as high as 22 mph.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 43. Breezy, with a south wind 14 to 22 mph, with gusts as high as 39 mph.

    Low: 43 °F

    Mostly Cloudy
    and Breezy

  • Friday

    Friday: Partly sunny, with a high near 56. Breezy, with a west wind 17 to 21 mph, with gusts as high as 32 mph.

    High: 56 °F

    Partly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34. Northwest wind 6 to 8 mph becoming east after midnight.

    Low: 34 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: Rain likely and possibly a thunderstorm, then rain after 1pm. High near 65. Breezy. Chance of precipitation is 90%.

    High: 65 °F

    Rain and
    Breezy

  • Sunday Night

    Sunday Night: Rain and snow likely before 1am, then a chance of snow. Mostly cloudy, with a low around 20. Blustery. Chance of precipitation is 60%.

    Low: 20 °F

    Rain/Snow
    Likely and
    Blustery

Detailed Forecast

Overnight
Clear, with a low around 29. West wind around 7 mph.
Thursday
Sunny, with a high near 54. West wind 5 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Mostly cloudy, with a low around 43. Breezy, with a south wind 14 to 22 mph, with gusts as high as 39 mph.
Friday
Partly sunny, with a high near 56. Breezy, with a west wind 17 to 21 mph, with gusts as high as 32 mph.
Friday Night
Mostly cloudy, with a low around 34. Northwest wind 6 to 8 mph becoming east after midnight.
Saturday
Partly sunny, with a high near 61.
Saturday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 51.
Sunday
Rain likely and possibly a thunderstorm, then rain after 1pm. High near 65. Breezy. Chance of precipitation is 90%.
Sunday Night
Rain and snow likely before 1am, then a chance of snow. Mostly cloudy, with a low around 20. Blustery. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 30. Blustery.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Partly sunny, with a high near 36.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 27.
Wednesday
Mostly cloudy, with a high near 55.
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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:
3:06 am CDT Mar 12, 2026
Forecast Valid:
3am CDT Mar 12, 2026-6pm CDT Mar 18, 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