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.

Heavy Rain Fog/Mist

70°F

21°C

Humidity 93%
Wind Speed Calm
Barometer 29.98 in (1014.5 mb)
Dewpoint 68°F (20°C)
Visibility 2.50 mi
Last update 14 Oct 5:54 am CDT
Extended Forecast for

2 Miles WSW Elsberry MO

  • Today

    Today: Showers likely before 7am, then showers likely and possibly a thunderstorm between 7am and 11am, then a chance of showers and thunderstorms after 11am. Cloudy, with a high near 75. North wind 5 to 7 mph. Chance of precipitation is 70%.

    High: 75 °F

    Showers
    Likely then
    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Cloudy, with a low around 63. North wind 5 to 7 mph becoming east after midnight. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    T-storms

  • Thursday

    Thursday: Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. Patchy fog between 8am and noon. High near 79. East wind 6 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 90%.

    High: 79 °F

    Showers and
    Patchy Fog
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 46. Northwest wind 6 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    Low: 46 °F

    Showers

  • Friday

    Friday: Mostly sunny, with a high near 59. Northwest wind 16 to 18 mph, with gusts as high as 36 mph.

    High: 59 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

Detailed Forecast

Today
Showers likely before 7am, then showers likely and possibly a thunderstorm between 7am and 11am, then a chance of showers and thunderstorms after 11am. Cloudy, with a high near 75. North wind 5 to 7 mph. Chance of precipitation is 70%.
Tonight
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Cloudy, with a low around 63. North wind 5 to 7 mph becoming east after midnight. Chance of precipitation is 40%.
Thursday
Showers and possibly a thunderstorm, mainly before 3pm, then a chance of showers and thunderstorms after 3pm. Patchy fog between 8am and noon. High near 79. East wind 6 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 90%.
Thursday Night
Showers and possibly a thunderstorm. Low around 46. Northwest wind 6 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Friday
Mostly sunny, with a high near 59. Northwest wind 16 to 18 mph, with gusts as high as 36 mph.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 62.
Saturday Night
Clear, with a low around 38.
Sunday
Sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Partly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Elsberry MO
 39.17°N 90.81°W (Elev. 548 ft)
Last Update:
5:06 am CDT Oct 14, 2026
Forecast Valid:
6am CDT Oct 14, 2026-6pm CDT Oct 20, 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