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

67°F

19°C

Humidity 25%
Wind Speed SE 20 mph
Barometer 29.99 in (1015.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 6 Nov 1:54 pm CST
Extended Forecast for

2 Miles ENE Elsah IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 65. Southeast wind around 15 mph, with gusts as high as 25 mph.

    High: 65 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of rain between midnight and 4am. Increasing clouds, with a low around 54. Southeast wind around 11 mph becoming southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Low: 54 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday

    Friday: Mostly cloudy through mid morning, then gradual clearing, with a high near 71. West wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 71 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43. West wind 5 to 7 mph becoming calm after midnight.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of rain after noon. Mostly cloudy, with a high near 65. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 65 °F

    Partly Sunny
    then Chance
    Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Chance Rain
    then Mostly
    Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 65. Southeast wind around 15 mph, with gusts as high as 25 mph.
Tonight
A slight chance of rain between midnight and 4am. Increasing clouds, with a low around 54. Southeast wind around 11 mph becoming southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Friday
Mostly cloudy through mid morning, then gradual clearing, with a high near 71. West wind 9 to 13 mph, with gusts as high as 21 mph.
Friday Night
Mostly clear, with a low around 43. West wind 5 to 7 mph becoming calm after midnight.
Saturday
A 40 percent chance of rain after noon. Mostly cloudy, with a high near 65. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Saturday Night
A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 41.
Sunday Night
Mostly clear, with a low around 24.
Monday
Sunny, with a high near 42.
Monday Night
Mostly clear, with a low around 27.
Veterans Day
Mostly sunny, with a high near 56.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Elsah IL
 38.95°N 90.33°W (Elev. 554 ft)
Last Update:
1:56 pm CST Nov 6, 2025
Forecast Valid:
2pm CST Nov 6, 2025-6pm CST Nov 12, 2025
 
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