National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

29°F

-2°C

Humidity 66%
Wind Speed N 5 mph
Barometer 30.09 in (1019.3 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 21 Feb 1:54 am CST
Extended Forecast for

2 Miles SW Foley MO

  • Overnight

    Overnight: A chance of flurries after 5am. Mostly cloudy, with a low around 25. North wind around 5 mph.

    Low: 25 °F

    Chance
    Flurries

  • Saturday

    Saturday: A chance of flurries before 10am. Partly sunny, with a high near 39. North wind 6 to 10 mph.

    High: 39 °F

    Chance
    Flurries

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 19. Northwest wind 8 to 14 mph, with gusts as high as 25 mph.

    Low: 19 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 32. Northwest wind 15 to 17 mph, with gusts as high as 33 mph.

    High: 32 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 15. Northwest wind 13 to 15 mph, with gusts as high as 28 mph.

    Low: 15 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of flurries after 5am. Mostly cloudy, with a low around 25. North wind around 5 mph.
Saturday
A chance of flurries before 10am. Partly sunny, with a high near 39. North wind 6 to 10 mph.
Saturday Night
Mostly clear, with a low around 19. Northwest wind 8 to 14 mph, with gusts as high as 25 mph.
Sunday
Sunny, with a high near 32. Northwest wind 15 to 17 mph, with gusts as high as 33 mph.
Sunday Night
Mostly clear, with a low around 15. Northwest wind 13 to 15 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 32.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Partly sunny, with a high near 52.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 35.
Thursday
A slight chance of rain and snow. Mostly sunny, with a high near 51. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Foley MO
 39.03°N 90.78°W (Elev. 640 ft)
Last Update:
12:26 am CST Feb 21, 2026
Forecast Valid:
2am CST Feb 21, 2026-6pm CST Feb 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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