Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast

25°F

-4°C

Humidity 63%
Wind Speed W 20 G 30 mph
Barometer 30.10 in (1019.9 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill11°F (-12°C)
Last update 16 Mar 6:54 pm CDT
Extended Forecast for

St. Charles County Smartt Airport MO

  • Tonight

    Tonight: Scattered flurries before 8pm.  Cloudy, then gradually becoming partly cloudy, with a low around 12. Northwest wind 13 to 17 mph, with gusts as high as 26 mph.

    Low: 12 °F

    Scattered
    Flurries

  • Tuesday

    Tuesday: Increasing clouds, with a high near 35. Northwest wind around 8 mph becoming south in the afternoon.

    High: 35 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow, mainly between 8pm and 1am.  Cloudy, with a low around 28. Southeast wind 8 to 13 mph, with gusts as high as 23 mph.

    Low: 28 °F

    Chance Snow

  • Wednesday

    Wednesday: Sunny, with a high near 65. South wind around 10 mph becoming west in the afternoon.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. West wind around 5 mph becoming calm  in the evening.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered flurries before 8pm. Cloudy, then gradually becoming partly cloudy, with a low around 12. Northwest wind 13 to 17 mph, with gusts as high as 26 mph.
Tuesday
Increasing clouds, with a high near 35. Northwest wind around 8 mph becoming south in the afternoon.
Tuesday Night
A 40 percent chance of snow, mainly between 8pm and 1am. Cloudy, with a low around 28. Southeast wind 8 to 13 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 65. South wind around 10 mph becoming west in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 41. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 48.
Sunday
Sunny, with a high near 72.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Mostly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
St. Charles County Smartt Airport MO
 38.94°N 90.45°W (Elev. 427 ft)
5:31 pm CDT Mar 16, 2026
7pm CDT Mar 16, 2026-6pm CDT Mar 23, 2026
 
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Additional Resources

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