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.

Light Rain

59°F

15°C

Humidity 93%
Wind Speed SE 12 mph
Barometer 29.81 in (1009.0 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 7 Mar 6:54 am CST
Extended Forecast for

4 Miles E Silex MO

  • Today

    Today: A chance of rain and thunderstorms before 9am, then a slight chance of rain between 9am and 10am. Mostly cloudy, with a temperature falling to around 52 by noon. Southwest wind 8 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 50%.

    High: 60 °F⇓

    Chance Rain
    then Mostly
    Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 35. West wind 3 to 7 mph.

    Low: 35 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 66. Southwest wind 5 to 9 mph, with gusts as high as 21 mph.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 46. South wind 6 to 8 mph, with gusts as high as 20 mph.

    Low: 46 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 77. Southwest wind 7 to 11 mph, with gusts as high as 25 mph.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain after midnight. Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear
    then Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after noon. Partly sunny, with a high near 78. Chance of precipitation is 70%.

    High: 78 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 47. Chance of precipitation is 90%.

    Low: 47 °F

    Rain

  • Wednesday

    Wednesday: Rain likely, mainly before noon. Cloudy, with a high near 60. Chance of precipitation is 70%.

    High: 60 °F

    Rain Likely
    then Chance
    Rain

Detailed Forecast

Today
A chance of rain and thunderstorms before 9am, then a slight chance of rain between 9am and 10am. Mostly cloudy, with a temperature falling to around 52 by noon. Southwest wind 8 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 50%.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 35. West wind 3 to 7 mph.
Sunday
Sunny, with a high near 66. Southwest wind 5 to 9 mph, with gusts as high as 21 mph.
Sunday Night
Clear, with a low around 46. South wind 6 to 8 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 77. Southwest wind 7 to 11 mph, with gusts as high as 25 mph.
Monday Night
A 30 percent chance of rain after midnight. Mostly clear, with a low around 57.
Tuesday
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after noon. Partly sunny, with a high near 78. Chance of precipitation is 70%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 47. Chance of precipitation is 90%.
Wednesday
Rain likely, mainly before noon. Cloudy, with a high near 60. Chance of precipitation is 70%.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 53.
Thursday Night
Mostly cloudy, with a low around 40.
Friday
Mostly cloudy, with a high near 65.
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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:
5:21 am CST Mar 7, 2026
Forecast Valid:
7am CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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