National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

29°F

-2°C

Humidity 58%
Wind Speed Calm
Barometer 30.06 in (1018.4 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 21 Jan 7:54 am CST
Extended Forecast for

3 Miles NNW Elsberry MO

  • Today

    Today: Sunny, with a high near 41. West wind 10 to 14 mph, with gusts as high as 25 mph.

    High: 41 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 21. West wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 24 mph.

    Low: 21 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 37. Calm wind becoming west around 5 mph.

    High: 37 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 4. Light and variable wind becoming north 8 to 13 mph in the evening. Winds could gust as high as 26 mph.

    Low: 4 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 11. North wind 9 to 13 mph, with gusts as high as 26 mph.

    High: 11 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -1.

    Low: -1 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of snow, mainly after noon. Cloudy and cold, with a high near 10.

    High: 10 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 5.

    Low: 5 °F

    Chance Snow
    then Slight
    Chance Snow

  • Sunday

    Sunday: Partly sunny and cold, with a high near 19.

    High: 19 °F

    Cold

Detailed Forecast

Today
Sunny, with a high near 41. West wind 10 to 14 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 21. West wind 8 to 13 mph becoming light after midnight. Winds could gust as high as 24 mph.
Thursday
Partly sunny, with a high near 37. Calm wind becoming west around 5 mph.
Thursday Night
Mostly cloudy, with a low around 4. Light and variable wind becoming north 8 to 13 mph in the evening. Winds could gust as high as 26 mph.
Friday
Mostly cloudy and cold, with a high near 11. North wind 9 to 13 mph, with gusts as high as 26 mph.
Friday Night
Mostly cloudy, with a low around -1.
Saturday
A 40 percent chance of snow, mainly after noon. Cloudy and cold, with a high near 10.
Saturday Night
A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 5.
Sunday
Partly sunny and cold, with a high near 19.
Sunday Night
Partly cloudy, with a low around 3.
Monday
Sunny, with a high near 23.
Monday Night
Mostly clear, with a low around 9.
Tuesday
Mostly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Elsberry MO
 39.21°N 90.8°W (Elev. 509 ft)
Last Update:
6:11 am CST Jan 21, 2026
Forecast Valid:
8am CST Jan 21, 2026-6pm CST Jan 27, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation