Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair and Breezy

85°F

29°C

Humidity 48%
Wind Speed S 21 G 28 mph
Barometer 29.76 in (1007.2 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 10 Mar 1:54 pm CDT
Extended Forecast for

St. Charles County Smartt Airport MO

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 83. South wind 16 to 18 mph, with gusts as high as 28 mph.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly after 4am.  Increasing clouds, with a low around 51. South wind 11 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%.

    Low: 51 °F

    Mostly Cloudy
    then T-storms
    Likely

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before 3pm, then a slight chance of rain between 3pm and 4pm.  Temperature falling to around 50 by 4pm. Breezy, with a southwest wind 14 to 21 mph becoming northwest in the morning. Winds could gust as high as 31 mph.  Chance of precipitation is 90%.

    High: 67 °F

    T-storms then
    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30. Northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 56. Light west wind becoming southwest 6 to 11 mph in the morning.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 83. South wind 16 to 18 mph, with gusts as high as 28 mph.
Tonight
Showers and thunderstorms likely, mainly after 4am. Increasing clouds, with a low around 51. South wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Wednesday
Rain and possibly a thunderstorm before 3pm, then a slight chance of rain between 3pm and 4pm. Temperature falling to around 50 by 4pm. Breezy, with a southwest wind 14 to 21 mph becoming northwest in the morning. Winds could gust as high as 31 mph. Chance of precipitation is 90%.
Wednesday Night
Partly cloudy, with a low around 30. Northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph.
Thursday
Sunny, with a high near 56. Light west wind becoming southwest 6 to 11 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 41.
Friday
Partly sunny, with a high near 60.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
Partly sunny, with a high near 67.
Saturday Night
A 30 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 47.
Sunday
Rain and possibly a thunderstorm. High near 65. Breezy. Chance of precipitation is 80%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 21. Blustery. Chance of precipitation is 30%.
Monday
Sunny, with a high near 37.
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ABOUT THIS FORECAST

 
Point Forecast:
St. Charles County Smartt Airport MO
 38.94°N 90.45°W (Elev. 427 ft)
2:06 pm CDT Mar 10, 2026
2pm CDT Mar 10, 2026-6pm CDT Mar 16, 2026
 
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