Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

66°F

19°C

Humidity 81%
Wind Speed SE 8 mph
Barometer 29.86 in (1010.6 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 6 Mar 10:54 pm CST
Extended Forecast for

St. Charles County Smartt Airport MO

Severe T-storm Watch until March 7, 06:00am
Click here for hazard details and duration
Severe T-storm Watch
  •  
    Severe T-storm Watch until March 7, 06:00am

    NOW until 6:00am Sat

    Severe T-storm Watch

  • Tonight

    Low: 59 °F

    Severe
    Thunderstorms

  • Saturday

    Saturday: Showers, mainly before 8am.  Temperature rising to near 63 by 9am, then falling to around 55 during the remainder of the day. Southwest wind 8 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph.  Chance of precipitation is 90%.

    High: 63 °F

    Showers then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming clear, with a low around 34. West wind 5 to 10 mph becoming light  after midnight.

    Low: 34 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 67. Light southwest wind increasing to 6 to 11 mph in the morning.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 44. South wind around 8 mph.

    Low: 44 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain after midnight.  Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear
    then Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after noon.  High near 80. Chance of precipitation is 80%.

    High: 80 °F

    Chance Rain
    then Rain

Detailed Forecast

Tonight
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 1am. Some of the storms could be severe. Low around 59. South wind 8 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 100%.
Saturday
Showers, mainly before 8am. Temperature rising to near 63 by 9am, then falling to around 55 during the remainder of the day. Southwest wind 8 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 90%.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 34. West wind 5 to 10 mph becoming light after midnight.
Sunday
Sunny, with a high near 67. Light southwest wind increasing to 6 to 11 mph in the morning.
Sunday Night
Clear, with a low around 44. South wind around 8 mph.
Monday
Sunny, with a high near 79.
Monday Night
A 30 percent chance of rain after midnight. Mostly clear, with a low around 56.
Tuesday
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after noon. High near 80. Chance of precipitation is 80%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 49. Chance of precipitation is 90%.
Wednesday
Rain likely, mainly before noon. Cloudy, with a high near 59. Chance of precipitation is 70%.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
Sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 38.
Friday
Partly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
St. Charles County Smartt Airport MO
 38.94°N 90.45°W (Elev. 427 ft)
10:41 pm CST Mar 6, 2026
11pm CST Mar 6, 2026-6pm CDT Mar 13, 2026
 
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Additional Resources

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