National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

3 Miles W Goreville IL

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

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • Tonight

    Low: 75 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 75. Light south wind.

    Low: 75 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 96. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 96 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 97. Light south southwest wind.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 96. Light west wind.

    High: 96 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a low around 75. Calm wind.
Wednesday
Sunny, with a high near 96. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 75. Light south wind.
Thursday
Sunny, with a high near 96. Calm wind becoming south southwest around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 74. Calm wind.
Friday
Sunny and hot, with a high near 97. Light south southwest wind.
Friday Night
Mostly clear, with a low around 74. Calm wind.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 96. Light west wind.
Saturday Night
A slight chance of showers before 1am. Partly cloudy, with a low around 72. Calm wind.
Sunday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Calm wind becoming north around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 70. Calm wind.
Labor Day
Sunny, with a high near 91. Calm wind becoming east around 6 mph in the morning.
Monday Night
Mostly clear, with a low around 68. East southeast wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 90. South southwest wind 3 to 6 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Goreville IL
 37.56°N 89.04°W
Last Update:
9:11 pm CDT Sep 1, 2026
Forecast Valid:
10pm CDT Sep 1, 2026-6pm CDT Sep 8, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation