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

46°F

8°C

Humidity 47%
Wind Speed NW 9 mph
Barometer 29.96 in (1014.2 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 16 Nov 4:54 am CST
Extended Forecast for

4 Miles SE Silex MO

  • Today

    Today: Sunny, with a high near 58. North wind around 5 mph becoming calm in the afternoon.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Increasing clouds, with a high near 58. Light east wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 58 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 3am, then showers likely after 3am. Mostly cloudy, with a low around 47. Southeast wind around 7 mph. Chance of precipitation is 60%.

    Low: 47 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 20 percent chance of showers before noon. Partly sunny, with a high near 70. Southeast wind 5 to 7 mph becoming north in the afternoon.

    High: 70 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 64.

    High: 64 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance Rain

  • Thursday

    Thursday: Rain and possibly a thunderstorm. High near 64. Chance of precipitation is 80%.

    High: 64 °F

    Rain

Detailed Forecast

Today
Sunny, with a high near 58. North wind around 5 mph becoming calm in the afternoon.
Tonight
Mostly clear, with a low around 36. Calm wind.
Monday
Increasing clouds, with a high near 58. Light east wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Monday Night
A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 3am, then showers likely after 3am. Mostly cloudy, with a low around 47. Southeast wind around 7 mph. Chance of precipitation is 60%.
Tuesday
A 20 percent chance of showers before noon. Partly sunny, with a high near 70. Southeast wind 5 to 7 mph becoming north in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 46.
Wednesday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 64.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 49.
Thursday
Rain and possibly a thunderstorm. High near 64. Chance of precipitation is 80%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Friday
Rain likely. Partly sunny, with a high near 61. Chance of precipitation is 60%.
Friday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Silex MO
 39.08°N 91.01°W (Elev. 482 ft)
Last Update:
3:06 am CST Nov 16, 2025
Forecast Valid:
5am CST Nov 16, 2025-6pm CST Nov 22, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation