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

43°F

6°C

Humidity 49%
Wind Speed W 3 mph
Barometer 30.14 in (1021.1 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 12 Jan 5:54 pm CST
Extended Forecast for

4 Miles SW Elsberry MO

  • Tonight

    Tonight: Mostly cloudy during the early evening, then clearing, with a low around 37. Southwest wind 5 to 10 mph, with gusts as high as 23 mph.

    Low: 37 °F

    Clearing

  • Tuesday

    Tuesday: Increasing clouds, with a high near 58. West wind 10 to 14 mph, with gusts as high as 30 mph.

    High: 58 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 34. West wind 10 to 15 mph, with gusts as high as 24 mph.

    Low: 34 °F

    Chance Rain
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a temperature rising to near 39 by 11am, then falling to around 31 during the remainder of the day. Northwest wind 15 to 17 mph, with gusts as high as 36 mph.

    High: 39 °F⇓

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 16. North wind 8 to 14 mph, with gusts as high as 25 mph.

    Low: 16 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 40.

    High: 40 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy during the early evening, then clearing, with a low around 37. Southwest wind 5 to 10 mph, with gusts as high as 23 mph.
Tuesday
Increasing clouds, with a high near 58. West wind 10 to 14 mph, with gusts as high as 30 mph.
Tuesday Night
A 30 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 34. West wind 10 to 15 mph, with gusts as high as 24 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a temperature rising to near 39 by 11am, then falling to around 31 during the remainder of the day. Northwest wind 15 to 17 mph, with gusts as high as 36 mph.
Wednesday Night
Mostly clear, with a low around 16. North wind 8 to 14 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 30.
Thursday Night
Mostly cloudy, with a low around 25.
Friday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 40.
Friday Night
Mostly cloudy, with a low around 17.
Saturday
Partly sunny, with a high near 26.
Saturday Night
Partly cloudy, with a low around 8.
Sunday
Mostly sunny, with a high near 24.
Sunday Night
Partly cloudy, with a low around 12.
M.L.King Day
Mostly sunny, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Elsberry MO
 39.15°N 90.86°W (Elev. 682 ft)
Last Update:
4:46 pm CST Jan 12, 2026
Forecast Valid:
6pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation