National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Light Snow and Windy

23°F

-5°C

Humidity 72%
Wind Speed NW 26 G 40 mph
Barometer 29.88 in (1012.0 mb)
Dewpoint 15°F (-9°C)
Visibility 7.00 mi
Wind Chill6°F (-14°C)
Last update 16 Mar 6:54 am CDT
Extended Forecast for

Elsah IL

Wind Advisory March 16, 07:27am until March 16, 12:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 16, 07:27am until March 16, 12:00pm

    NOW until 12:00pm Mon

    Wind Advisory

  • Today

    High: 28 °F

    Blustery.
    Chance Snow
    then Chance
    Flurries

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 14. Northwest wind 11 to 17 mph, with gusts as high as 26 mph.

    Low: 14 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Increasing clouds, with a high near 35. Northwest wind 6 to 8 mph becoming south in the afternoon.

    High: 35 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of snow before 10pm, then a chance of rain and snow between 10pm and 4am, then a chance of snow after 4am. Mostly cloudy, with a low around 30. Southeast wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    Low: 30 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63. South wind 8 to 10 mph becoming west in the afternoon.

    High: 63 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Today
A chance of snow before noon, then a chance of flurries between noon and 1pm. Cloudy, with a high near 28. Blustery, with a northwest wind 22 to 28 mph, with gusts as high as 41 mph. Chance of precipitation is 30%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 14. Northwest wind 11 to 17 mph, with gusts as high as 26 mph.
Tuesday
Increasing clouds, with a high near 35. Northwest wind 6 to 8 mph becoming south in the afternoon.
Tuesday Night
A chance of snow before 10pm, then a chance of rain and snow between 10pm and 4am, then a chance of snow after 4am. Mostly cloudy, with a low around 30. Southeast wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Wednesday
Mostly sunny, with a high near 63. South wind 8 to 10 mph becoming west in the afternoon.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 75.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Elsah IL
 38.96°N 90.36°W (Elev. 492 ft)
Last Update:
5:41 am CDT Mar 16, 2026
Forecast Valid:
7am CDT Mar 16, 2026-6pm CDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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