Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fog/Mist

43°F

6°C

Humidity 97%
Wind Speed Calm
Barometer 30.47 in (1031.7 mb)
Dewpoint 42°F (6°C)
Visibility 1.75 mi
Last update 17 Oct 10:54 pm CDT
Extended Forecast for

3 Miles NE Foley MO

Frost Advisory October 18, 01:00am until October 18, 09:00am
Click here for hazard details and duration
Frost Advisory
  • Tonight

    Tonight: Clear, with a low around 38. Calm wind.

    Low: 38 °F

    Clear

  • Sunday

    Sunday: Patchy fog before 9am.  Otherwise, sunny, with a high near 70. South wind 3 to 7 mph.

    High: 70 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 42. Light south wind.

    Low: 42 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72. Light and variable wind.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 38. Calm wind.
Sunday
Patchy fog before 9am. Otherwise, sunny, with a high near 70. South wind 3 to 7 mph.
Sunday Night
Clear, with a low around 42. Light south wind.
Monday
Sunny, with a high near 72. Light and variable wind.
Monday Night
Mostly clear, with a low around 42. Calm wind.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Foley MO
 39.07°N 90.7°W (Elev. 430 ft)
10:36 pm CDT Oct 17, 2026
10pm CDT Oct 17, 2026-6pm CDT Oct 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