Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Light Rain

63°F

17°C

Humidity 90%
Wind Speed SW 12 mph
Barometer 29.77 in (1007.8 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 18 Apr 12:54 am CDT
Extended Forecast for

3 Miles WNW Carrollton IL

Flood Watch until April 18, 04:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until April 18, 04:00am

    NOW until 4:00am Sat

    Flood Watch

  • Overnight

    Low: 44 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 7am.  Mostly cloudy through mid morning, then gradual clearing, with a high near 56. Northwest wind 16 to 18 mph, with gusts as high as 26 mph.

    High: 56 °F

    Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38. Northwest wind 6 to 11 mph becoming southwest after midnight. Winds could gust as high as 21 mph.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64. West wind 6 to 16 mph, with gusts as high as 26 mph.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36. North wind 5 to 9 mph becoming east after midnight.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Overnight
Showers, mainly before 4am. Low around 44. Northwest wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
Saturday
A 30 percent chance of showers, mainly before 7am. Mostly cloudy through mid morning, then gradual clearing, with a high near 56. Northwest wind 16 to 18 mph, with gusts as high as 26 mph.
Saturday Night
Mostly clear, with a low around 38. Northwest wind 6 to 11 mph becoming southwest after midnight. Winds could gust as high as 21 mph.
Sunday
Sunny, with a high near 64. West wind 6 to 16 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 36. North wind 5 to 9 mph becoming east after midnight.
Monday
Sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 48.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 56.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Friday
Showers and thunderstorms likely. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Carrollton IL
 39.29°N 90.46°W (Elev. 607 ft)
1:26 am CDT Apr 18, 2026
1am CDT Apr 18, 2026-6pm CDT Apr 24, 2026
 
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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