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

48°F

9°C

Humidity 74%
Wind Speed E 14 mph
Barometer 29.94 in (1013.8 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 17 Nov 9:54 pm CST
Extended Forecast for

Silex MO

  • Tonight

    Tonight: A 20 percent chance of rain and thunderstorms before 4am. Mostly cloudy, with a low around 48. Southeast wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Partly sunny, with a high near 69. Southeast wind around 7 mph becoming northwest in the afternoon.

    High: 69 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 42. Light north wind.

    Low: 42 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 59. Calm wind.

    High: 59 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain likely. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.

    High: 65 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.

    Low: 48 °F

    Rain Likely

  • Friday

    Friday: Rain likely. Mostly cloudy, with a high near 56. Chance of precipitation is 70%.

    High: 56 °F

    Rain Likely

  • Friday Night

    Friday Night: A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain
    then Mostly
    Cloudy

Detailed Forecast

Tonight
A 20 percent chance of rain and thunderstorms before 4am. Mostly cloudy, with a low around 48. Southeast wind 7 to 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 69. Southeast wind around 7 mph becoming northwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 42. Light north wind.
Wednesday
Mostly cloudy, with a high near 59. Calm wind.
Wednesday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 45. Calm wind.
Thursday
Rain likely. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.
Thursday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.
Friday
Rain likely. Mostly cloudy, with a high near 56. Chance of precipitation is 70%.
Friday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 37.
Saturday
Mostly sunny, with a high near 54.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Mostly sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 40.
Monday
A 30 percent chance of rain. Partly sunny, with a high near 58.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Silex MO
 39.13°N 91.06°W (Elev. 600 ft)
Last Update:
8:27 pm CST Nov 17, 2025
Forecast Valid:
10pm CST Nov 17, 2025-6pm CST Nov 24, 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