Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Partly Cloudy

95°F

35°C

Humidity 47%
Wind Speed W 5 mph
Barometer 29.88 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 5 Sep 4:45 pm CDT
Extended Forecast for

Butler IL

Extreme Heat Warning September 5, 05:12pm until September 5, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 5, 05:12pm until September 5, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • This Afternoon

    High: 98 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 67. Northeast wind 3 to 6 mph.

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 87. Northeast wind 5 to 8 mph.

    High: 87 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60. East wind 3 to 7 mph.

    Low: 60 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 88. East wind 3 to 5 mph.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 98. Heat index values as high as 104. North wind around 5 mph.
Tonight
Partly cloudy, with a low around 67. Northeast wind 3 to 6 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 87. Northeast wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 60. East wind 3 to 7 mph.
Labor Day
Sunny, with a high near 88. East wind 3 to 5 mph.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
Sunny and hot, with a high near 97.
Wednesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 66.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 86.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 61.
Saturday
A 20 percent chance of showers. Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Butler IL
 39.2°N 89.52°W (Elev. 627 ft)
3:46 pm CDT Sep 5, 2026
5pm CDT Sep 5, 2026-6pm CDT Sep 12, 2026
 
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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