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 and Breezy

45°F

7°C

Humidity 35%
Wind Speed W 22 G 29 mph
Barometer 30.06 in (1018.0 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 21 Jan 12:54 pm CST
Extended Forecast for

3 Miles NNW Elsberry MO

  • This Afternoon

    This Afternoon: Sunny, with a high near 42. West wind 9 to 13 mph, with gusts as high as 24 mph.

    High: 42 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 21. West wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 26 mph.

    Low: 21 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 37. West wind 3 to 7 mph.

    High: 37 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 5. Light and variable wind becoming north 8 to 13 mph in the evening. Winds could gust as high as 26 mph.

    Low: 5 °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: A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 1.

    Low: 1 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow likely, mainly after noon. Cloudy and cold, with a high near 12. Chance of precipitation is 60%.

    High: 12 °F

    Snow Likely

  • Saturday Night

    Saturday Night: Snow, mainly before midnight. Low around 7. Chance of precipitation is 80%.

    Low: 7 °F

    Snow then
    Chance Snow

  • Sunday

    Sunday: A 40 percent chance of snow, mainly before noon. Partly sunny and cold, with a high near 18.

    High: 18 °F

    Chance Snow

Detailed Forecast

This Afternoon
Sunny, with a high near 42. West wind 9 to 13 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 21. West wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 26 mph.
Thursday
Partly sunny, with a high near 37. West wind 3 to 7 mph.
Thursday Night
Mostly cloudy, with a low around 5. 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
A 30 percent chance of snow after midnight. Mostly cloudy, with a low around 1.
Saturday
Snow likely, mainly after noon. Cloudy and cold, with a high near 12. Chance of precipitation is 60%.
Saturday Night
Snow, mainly before midnight. Low around 7. Chance of precipitation is 80%.
Sunday
A 40 percent chance of snow, mainly before noon. Partly sunny and cold, with a high near 18.
Sunday Night
Partly cloudy, with a low around -2.
Monday
Sunny and cold, with a high near 16.
Monday Night
Mostly clear, with a low around 5.
Tuesday
Mostly sunny, with a high near 29.
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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:
1:36 pm CST Jan 21, 2026
Forecast Valid:
1pm CST Jan 21, 2026-6pm CST Jan 27, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation