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

60°F

16°C

Humidity 24%
Wind Speed W 17 G 28 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 13 Mar 2:54 pm CDT
Extended Forecast for

5 Miles WSW Elsberry MO

  • Tonight

    Tonight: Partly cloudy, with a low around 35. Northwest wind 5 to 8 mph becoming light and variable.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 62. Southeast wind 7 to 11 mph, with gusts as high as 24 mph.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 54. Southeast wind 9 to 14 mph, with gusts as high as 28 mph.

    Low: 54 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: Rain, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 67. South wind around 17 mph, with gusts as high as 39 mph. Chance of precipitation is 90%.

    High: 67 °F

    Chance Rain
    then Showers

  • Sunday Night

    Sunday Night: Rain before 10pm, then snow. Some thunder is also possible. Low around 19. Blustery, with a northwest wind 20 to 28 mph, with gusts as high as 49 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 19 °F

    Rain/Snow and
    Breezy then
    Snow and
    Blustery

  • Monday

    Monday: A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 27. Blustery.

    High: 27 °F

    Chance Snow
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 11.

    Low: 11 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.

    Low: 29 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 35. Northwest wind 5 to 8 mph becoming light and variable.
Saturday
Mostly sunny, with a high near 62. Southeast wind 7 to 11 mph, with gusts as high as 24 mph.
Saturday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 54. Southeast wind 9 to 14 mph, with gusts as high as 28 mph.
Sunday
Rain, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 67. South wind around 17 mph, with gusts as high as 39 mph. Chance of precipitation is 90%.
Sunday Night
Rain before 10pm, then snow. Some thunder is also possible. Low around 19. Blustery, with a northwest wind 20 to 28 mph, with gusts as high as 49 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Monday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 27. Blustery.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Elsberry MO
 39.15°N 90.86°W (Elev. 682 ft)
Last Update:
1:21 pm CDT Mar 13, 2026
Forecast Valid:
3pm CDT Mar 13, 2026-6pm CDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation