Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Partly Cloudy

28°F

-2°C

Humidity 58%
Wind Speed NW 16 G 31 mph
Barometer 30.35 in (1028.1 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 11 Jan 4:54 am CST
Extended Forecast for

4 Miles NNE Saint Charles MO

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 39. Northwest wind 6 to 15 mph, with gusts as high as 26 mph.

    High: 39 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 25. Southwest wind 5 to 7 mph.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 52. West wind 6 to 10 mph.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 36. Southwest wind 5 to 8 mph.

    Low: 36 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 59. West wind 9 to 15 mph, with gusts as high as 24 mph.

    High: 59 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 39.

    High: 39 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 39. Northwest wind 6 to 15 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 25. Southwest wind 5 to 7 mph.
Monday
Sunny, with a high near 52. West wind 6 to 10 mph.
Monday Night
Partly cloudy, with a low around 36. Southwest wind 5 to 8 mph.
Tuesday
Partly sunny, with a high near 59. West wind 9 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 19.
Thursday
Mostly sunny, with a high near 39.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
Mostly cloudy, with a high near 42.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
Mostly cloudy, with a high near 32.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Saint Charles MO
 38.85°N 90.51°W (Elev. 436 ft)
4:31 am CST Jan 11, 2026
5am CST Jan 11, 2026-6pm CST Jan 17, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database