Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast

44°F

7°C

Humidity 76%
Wind Speed W 10 mph
Barometer 30.07 in (1018.2 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 7 Mar 7:54 pm CST
Extended Forecast for

St. Charles County Smartt Airport MO

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West wind 5 to 9 mph becoming light.

    Low: 34 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 67. Southwest wind 5 to 13 mph.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 43. South wind 6 to 8 mph.

    Low: 43 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 78. Southwest wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. South wind 8 to 10 mph.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon.  Partly sunny, with a high near 82. Chance of precipitation is 60%.

    High: 82 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm.  Low around 48. Chance of precipitation is 90%.

    Low: 48 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before noon, then a chance of showers.  High near 62. Chance of precipitation is 90%.

    High: 62 °F

    Showers then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before midnight.  Mostly clear, with a low around 30.

    Low: 30 °F

    Slight Chance
    Showers then
    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West wind 5 to 9 mph becoming light.
Sunday
Sunny, with a high near 67. Southwest wind 5 to 13 mph.
Sunday Night
Clear, with a low around 43. South wind 6 to 8 mph.
Monday
Sunny, with a high near 78. Southwest wind 7 to 14 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 56. South wind 8 to 10 mph.
Tuesday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 82. Chance of precipitation is 60%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm before noon, then a chance of showers. High near 62. Chance of precipitation is 90%.
Wednesday Night
A 20 percent chance of showers before midnight. Mostly clear, with a low around 30.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly cloudy, with a low around 41.
Friday
Partly sunny, with a high near 67.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
Mostly cloudy, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
St. Charles County Smartt Airport MO
 38.94°N 90.45°W (Elev. 427 ft)
7:36 pm CST Mar 7, 2026
8pm CST Mar 7, 2026-6pm CDT Mar 14, 2026
 
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Additional Resources

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