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Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

62°F

17°C

Humidity 50%
Wind Speed W 14 G 28 mph
Barometer 29.78 in (1007.9 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 17 May 7:54 am CDT
Extended Forecast for

St. Charles County Smartt Airport MO

  • Today

    Today: Sunny, with a high near 76. West wind 16 to 18 mph, with gusts as high as 28 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 54. Northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 79. Northeast wind 5 to 8 mph becoming east in the afternoon.

    High: 79 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 61. East wind 7 to 9 mph. Chance of precipitation is 80%.

    Low: 61 °F

    Chance
    T-storms then
    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 76. East wind around 11 mph. Chance of precipitation is 80%.

    High: 76 °F

    Showers then
    T-storms

  • Monday Night

    Monday Night: Showers and thunderstorms before 1am, then showers and possibly a thunderstorm after 1am. Low around 63. Chance of precipitation is 100%.

    Low: 63 °F

    T-storms

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 90%.

    High: 78 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.

    Low: 53 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 40 percent chance of showers. Mostly cloudy, with a high near 63.

    High: 63 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 76. West wind 16 to 18 mph, with gusts as high as 28 mph.
Tonight
Partly cloudy, with a low around 54. Northwest wind 5 to 10 mph becoming light and variable after midnight.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 79. Northeast wind 5 to 8 mph becoming east in the afternoon.
Sunday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 61. East wind 7 to 9 mph. Chance of precipitation is 80%.
Monday
Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 76. East wind around 11 mph. Chance of precipitation is 80%.
Monday Night
Showers and thunderstorms before 1am, then showers and possibly a thunderstorm after 1am. Low around 63. Chance of precipitation is 100%.
Tuesday
Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 90%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 63.
Wednesday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 47.
Thursday
Sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 49.
Friday
Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
St. Charles County Smartt Airport MO
 38.94°N 90.45°W (Elev. 427 ft)
Last Update:
5:37 am CDT May 17, 2025
Forecast Valid:
8am CDT May 17, 2025-6pm CDT May 23, 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