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.

Fog/Mist

56°F

13°C

Humidity 93%
Wind Speed E 8 mph
Barometer 29.78 in (1008.1 mb)
Dewpoint 54°F (12°C)
Visibility 5.00 mi
Last update 2 Apr 3:54 am CDT
Extended Forecast for

3 Miles WNW Carrollton IL

Wind Advisory April 2, 12:00pm until April 2, 07:00pm
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms. Cloudy, with a steady temperature around 55. Southeast wind around 11 mph, with gusts as high as 22 mph.

    Low: 55 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 75. Breezy, with a south wind 16 to 23 mph, with gusts as high as 44 mph. Chance of precipitation is 80%.

    High: 75 °F

    Breezy.
    Chance
    T-storms then
    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 1am, then a chance of showers. Partly cloudy, with a low around 57. South wind 13 to 18 mph becoming west 6 to 11 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 60%.

    Low: 57 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. East wind 6 to 14 mph becoming south in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 70%.

    High: 80 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 54. South wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.

    Low: 54 °F

    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Mostly cloudy, with a high near 59. Chance of precipitation is 40%.

    High: 59 °F

    Chance
    Showers

  • 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

  • Sunday Night

    Sunday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms. Cloudy, with a steady temperature around 55. Southeast wind around 11 mph, with gusts as high as 22 mph.
Thursday
Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 75. Breezy, with a south wind 16 to 23 mph, with gusts as high as 44 mph. Chance of precipitation is 80%.
Thursday Night
Showers and thunderstorms likely before 1am, then a chance of showers. Partly cloudy, with a low around 57. South wind 13 to 18 mph becoming west 6 to 11 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 60%.
Friday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 80. East wind 6 to 14 mph becoming south in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 70%.
Friday Night
Showers and possibly a thunderstorm. Low around 54. South wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.
Saturday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm. Mostly cloudy, with a high near 59. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Sunny, with a high near 56.
Sunday Night
Clear, with a low around 37.
Monday
Sunny, with a high near 62.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 58.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Mostly sunny, with a high near 69.
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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:
3:46 am CDT Apr 2, 2026
Forecast Valid:
4am CDT Apr 2, 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