Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

3°F

-16°C

Humidity 76%
Wind Speed W 7 mph
Barometer 30.49 in (1033.2 mb)
Dewpoint -3°F (-19°C)
Visibility 10.00 mi
Wind Chill-9°F (-23°C)
Last update 1 Feb 12:54 am CST
Extended Forecast for

St. Charles County Smartt Airport MO

  • Overnight

    Overnight: Mostly clear, with a low around 0. Light west wind.

    Low: 0 °F

    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of snow, mainly after 2pm.  Increasing clouds, with a high near 29. Light southwest wind becoming south 5 to 10 mph in the morning.

    High: 29 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A 40 percent chance of snow, mainly before 7pm.  Cloudy, then gradually becoming partly cloudy, with a low around 16. South wind around 6 mph becoming calm  in the evening.

    Low: 16 °F

    Chance Snow
    then Partly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 36. Calm wind becoming west around 6 mph.

    High: 36 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 22. Calm wind becoming northeast around 5 mph after midnight.

    Low: 22 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow.  Mostly cloudy, with a high near 31.

    High: 31 °F

    Slight Chance
    Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 0. Light west wind.
Sunday
A 40 percent chance of snow, mainly after 2pm. Increasing clouds, with a high near 29. Light southwest wind becoming south 5 to 10 mph in the morning.
Sunday Night
A 40 percent chance of snow, mainly before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 16. South wind around 6 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 36. Calm wind becoming west around 6 mph.
Monday Night
Mostly cloudy, with a low around 22. Calm wind becoming northeast around 5 mph after midnight.
Tuesday
A 20 percent chance of snow. Mostly cloudy, with a high near 31.
Tuesday Night
Mostly cloudy, with a low around 11.
Wednesday
Mostly sunny, with a high near 27.
Wednesday Night
Partly cloudy, with a low around 11.
Thursday
Partly sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 44.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Mostly sunny, with a high near 36.
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ABOUT THIS FORECAST

 
Point Forecast:
St. Charles County Smartt Airport MO
 38.94°N 90.45°W (Elev. 427 ft)
10:57 pm CST Jan 31, 2026
1am CST Feb 1, 2026-6pm CST Feb 7, 2026
 
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Additional Resources

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