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.

Overcast

43°F

6°C

Humidity 82%
Wind Speed SW 6 mph
Barometer 30.12 in (1019.9 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 1 Nov 8:54 am CDT
Extended Forecast for

4 Miles E Silex MO

Freeze Warning November 2, 01:00am until November 2, 07:00am
Click here for hazard details and duration
Freeze Warning

  • Today

    Today: A 20 percent chance of rain after 1pm. Partly sunny, with a high near 49. West wind 3 to 8 mph.

    High: 49 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Tonight

    Tonight: Widespread frost, mainly after 5am. Otherwise, partly cloudy, with a low around 31. Light northwest wind.

    Low: 31 °F

    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 53. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 53 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 37. Calm wind becoming southwest around 6 mph after midnight.

    Low: 37 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 63. Southwest wind around 7 mph becoming northwest in the afternoon.

    High: 63 °F

    Sunny

  • Monday Night

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

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of rain after 1pm. Partly sunny, with a high near 49. West wind 3 to 8 mph.
Tonight
Widespread frost, mainly after 5am. Otherwise, partly cloudy, with a low around 31. Light northwest wind.
Sunday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 53. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Clear, with a low around 37. Calm wind becoming southwest around 6 mph after midnight.
Monday
Sunny, with a high near 63. Southwest wind around 7 mph becoming northwest in the afternoon.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 68.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Clear, with a low around 41.
Thursday
Sunny, with a high near 66.
Thursday Night
A 20 percent chance of rain. Partly cloudy, with a low around 50.
Friday
A 30 percent chance of rain. Mostly sunny, with a high near 65.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Silex MO
 39.13°N 90.98°W (Elev. 738 ft)
Last Update:
9:37 am CDT Nov 1, 2025
Forecast Valid:
9am CDT Nov 1, 2025-6pm CST Nov 7, 2025
 
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