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.

Overcast

53°F

12°C

Humidity 74%
Wind Speed NE 20 G 28 mph
Barometer 30.01 in (1015.8 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 27 Mar 12:54 am CDT
Extended Forecast for

Elsah IL

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Low around 40. Breezy, with a north wind 18 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.

    Low: 40 °F

    Showers and
    Breezy

  • Friday

    Friday: A 30 percent chance of showers, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 53. North wind around 17 mph, with gusts as high as 26 mph.

    High: 53 °F

    Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 30. North wind 5 to 13 mph, with gusts as high as 20 mph.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 56. Calm wind becoming south 5 to 9 mph in the morning.

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 41. South wind around 9 mph.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 69.

    High: 69 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 40. Breezy, with a north wind 18 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Friday
A 30 percent chance of showers, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 53. North wind around 17 mph, with gusts as high as 26 mph.
Friday Night
Mostly clear, with a low around 30. North wind 5 to 13 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 56. Calm wind becoming south 5 to 9 mph in the morning.
Saturday Night
Partly cloudy, with a low around 41. South wind around 9 mph.
Sunday
Mostly cloudy, with a high near 69.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 83.
Monday Night
A 20 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 64.
Tuesday
A 30 percent chance of rain, mainly after 1pm. Partly sunny, with a high near 85.
Tuesday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 61.
Wednesday
A 50 percent chance of rain and thunderstorms. Partly sunny, with a high near 76.
Wednesday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Thursday
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 67.
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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:
1:26 am CDT Mar 27, 2026
Forecast Valid:
1am CDT Mar 27, 2026-6pm CDT Apr 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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