Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

39°F

4°C

Humidity 73%
Wind Speed Calm
Barometer 30.21 in (1022.8 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 13 Nov 2:54 am CST
Extended Forecast for

3 Miles SSW Dow IL

  • Overnight

    Overnight: Partly cloudy, with a low around 37. Light north wind.

    Low: 37 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65. Calm wind becoming south 5 to 9 mph in the morning.

    High: 65 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 48. South wind 6 to 8 mph.

    Low: 48 °F

    Increasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 75. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58. Southwest wind 6 to 10 mph.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 37. Light north wind.
Thursday
Mostly sunny, with a high near 65. Calm wind becoming south 5 to 9 mph in the morning.
Thursday Night
Increasing clouds, with a low around 48. South wind 6 to 8 mph.
Friday
Sunny, with a high near 75. Southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 58. Southwest wind 6 to 10 mph.
Saturday
Partly sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 39.
Monday
A 30 percent chance of rain after noon. Mostly sunny, with a high near 57.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 45.
Tuesday
A 20 percent chance of rain. Mostly sunny, with a high near 58.
Tuesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 40.
Wednesday
A 20 percent chance of rain. Partly sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Dow IL
 39.02°N 90.33°W (Elev. 650 ft)
2:36 am CST Nov 13, 2025
3am CST Nov 13, 2025-6pm CST Nov 19, 2025
 
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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