Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Partly Cloudy

99°F

37°C

Humidity 37%
Wind Speed W 6 mph
Barometer 29.94 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 4 Sep 3:45 pm CDT
Extended Forecast for

Hamel IL

Extreme Heat Warning September 4, 04:31pm until September 5, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 4, 04:31pm until September 5, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • Tonight

    Low: 76 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 100. Heat index values as high as 106. Calm wind becoming northwest around 6 mph in the morning.

    High: 100 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 72. Northeast wind 3 to 6 mph.

    Low: 72 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 93. Northeast wind 5 to 9 mph.

    High: 93 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65. Northeast wind 5 to 10 mph becoming light east  after midnight.

    Low: 65 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 76. Light and variable wind.
Saturday
Sunny and hot, with a high near 100. Heat index values as high as 106. Calm wind becoming northwest around 6 mph in the morning.
Saturday Night
Mostly clear, with a low around 72. Northeast wind 3 to 6 mph.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 93. Northeast wind 5 to 9 mph.
Sunday Night
Mostly clear, with a low around 65. Northeast wind 5 to 10 mph becoming light east after midnight.
Labor Day
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 66.
Tuesday
Sunny and hot, with a high near 97.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
Sunny and hot, with a high near 100.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 73.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Thursday Night
Partly cloudy, with a low around 65.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Hamel IL
 38.9°N 89.85°W (Elev. 548 ft)
2:51 pm CDT Sep 4, 2026
4pm CDT Sep 4, 2026-6pm CDT Sep 11, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database