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

69°F

21°C

Humidity 45%
Wind Speed SE 13 mph
Barometer 30.15 in (1020.9 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 4 Nov 11:54 am CST
Extended Forecast for

4 Miles E Silex MO

  • This Afternoon

    This Afternoon: Sunny, with a high near 71. South wind 9 to 15 mph, with gusts as high as 25 mph.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 52. South wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 65. West wind 7 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 36. North wind around 6 mph becoming calm.

    Low: 36 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 63. Southeast wind 5 to 13 mph, with gusts as high as 23 mph.

    High: 63 °F

    Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: A 20 percent chance of rain before noon. Mostly sunny, with a high near 67.

    High: 67 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 71. South wind 9 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 52. South wind 9 to 11 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 65. West wind 7 to 15 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 36. North wind around 6 mph becoming calm.
Thursday
Sunny, with a high near 63. Southeast wind 5 to 13 mph, with gusts as high as 23 mph.
Thursday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 54.
Friday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 40.
Saturday
Mostly sunny, with a high near 63.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Sunny, with a high near 47.
Sunday Night
Mostly clear, with a low around 26.
Monday
Sunny, with a high near 45.
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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:
11:01 am CST Nov 4, 2025
Forecast Valid:
12pm CST Nov 4, 2025-6pm CST Nov 10, 2025
 
Forecast Discussion
 
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Additional Resources

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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