Dangerous Heat Continues in the Central and Southern U.S.; Severe Weather and Heavy Rain in the Northern Plains

Dangerous, prolonged heat is expected across portions of the Central and Southeast U.S. through July. Scattered severe thunderstorms are expected over parts of the northern Plains into the upper Mississippi Valley today, with damaging winds and large hail as the primary threats. Heavy rainfall could lead to areas of flooding across the northern Plains, Upper Midwest, Southeast and Southwest. Read More >

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

84°F

29°C

Humidity 79%
Wind Speed S 6 mph
Barometer 30.02 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 22 Jul 9:45 am CDT
Extended Forecast for

3 Miles N Goreville IL

Extreme Heat Warning July 22, 10:16am until July 24, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 22, 10:16am until July 24, 07:00pm

    NOW until 7:00pm Thu

    Extreme Heat Warning

  • Today

    High: 91 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 76. Calm wind.

    Low: 76 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 94. Heat index values as high as 108. Light south southeast wind.

    High: 94 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. Calm wind.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 93. South wind 3 to 6 mph.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. South wind 3 to 5 mph.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny, with a high near 92. South southwest wind 5 to 7 mph.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 76. South wind 3 to 5 mph.

    Low: 76 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 108. Light east southeast wind.
Tonight
Partly cloudy, with a low around 76. Calm wind.
Wednesday
Mostly sunny, with a high near 94. Heat index values as high as 108. Light south southeast wind.
Wednesday Night
Mostly clear, with a low around 77. Calm wind.
Thursday
Sunny, with a high near 93. South wind 3 to 6 mph.
Thursday Night
Mostly clear, with a low around 76. South wind 3 to 5 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. South southwest wind 5 to 7 mph.
Friday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 76. South wind 3 to 5 mph.
Saturday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. South southwest wind 5 to 7 mph.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 77. South southwest wind 3 to 5 mph.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Calm wind becoming west southwest around 5 mph in the afternoon.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. Light and variable wind.
Monday
Sunny, with a high near 94. Light west northwest wind.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Goreville IL
 37.6°N 88.98°W
6:45 am CDT Jul 22, 2025
10am CDT Jul 22, 2025-6pm CDT Jul 28, 2025
 
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