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.

Thunderstorm Heavy Rain Fog/Mist

69°F

21°C

Humidity 90%
Wind Speed SW 10 mph
Barometer 29.85 in (1010.3 mb)
Dewpoint 66°F (19°C)
Visibility 1.00 mi
Last update 18 Jun 7:54 pm CDT
Extended Forecast for

3 Miles E Elsah IL

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, then becoming mostly clear toward daybreak, with a low around 67. West wind around 8 mph. Chance of precipitation is 60%.

    Low: 67 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Juneteenth

    Juneteenth: Sunny, with a high near 85. Northwest wind around 8 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 68. West wind around 6 mph becoming light and variable in the evening.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 91. Light south wind increasing to 5 to 10 mph in the morning.

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. South wind 8 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, then becoming mostly clear toward daybreak, with a low around 67. West wind around 8 mph. Chance of precipitation is 60%.
Juneteenth
Sunny, with a high near 85. Northwest wind around 8 mph.
Thursday Night
Mostly clear, with a low around 68. West wind around 6 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 91. Light south wind increasing to 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 75. South wind 8 to 10 mph.
Saturday
Sunny, with a high near 95.
Saturday Night
Mostly clear, with a low around 77.
Sunday
Sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 77.
Monday
Sunny, with a high near 95.
Monday Night
Mostly clear, with a low around 77.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Elsah IL
 38.95°N 90.3°W (Elev. 449 ft)
Last Update:
5:52 pm CDT Jun 18, 2025
Forecast Valid:
8pm CDT Jun 18, 2025-6pm CDT Jun 25, 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