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.

Fair

93°F

34°C

Humidity 66%
Wind Speed W 3 mph
Barometer 29.91 in (1012.1 mb)
Dewpoint 80°F (27°C)
Visibility 10.00 mi
Heat Index112°F (44°C)
Last update 26 Jul 12:54 pm CDT
Extended Forecast for

2 Miles SSW Golden Eagle IL

Extreme Heat Warning until July 27, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning until July 27, 09:00pm

    NOW until 9:00pm Mon

    Extreme Heat Warning

  • This Afternoon

    High: 97 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Isolated showers and thunderstorms before 9pm. Partly cloudy, with a low around 78. Light and variable wind. Chance of precipitation is 20%.

    Low: 78 °F

    Isolated
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 96. Heat index values as high as 110. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 96 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 79. Southwest wind 6 to 8 mph.

    Low: 79 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 92. North wind 6 to 9 mph.

    High: 92 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms after 3pm. Sunny and hot, with a high near 97. Heat index values as high as 116. West wind 3 to 6 mph. Chance of precipitation is 20%.
Tonight
Isolated showers and thunderstorms before 9pm. Partly cloudy, with a low around 78. Light and variable wind. Chance of precipitation is 20%.
Monday
Sunny, with a high near 96. Heat index values as high as 110. Light and variable wind becoming west 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 79. Southwest wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 92. North wind 6 to 9 mph.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
Sunny, with a high near 89.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 71.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Friday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Golden Eagle IL
 38.87°N 90.59°W (Elev. 420 ft)
Last Update:
1:26 pm CDT Jul 26, 2026
Forecast Valid:
1pm CDT Jul 26, 2026-6pm CDT Aug 1, 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