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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

93°F

34°C

Humidity 53%
Wind Speed SW 9 mph
Barometer 30.12 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 2 Jul 1:45 pm CDT
Extended Forecast for

Benton IL

Heat Advisory July 3, 08:00pm until July 4, 08:00pm
Extreme Heat Warning July 2, 02:10pm until July 3, 08:00pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning
  •  
    Extreme Heat Warning July 2, 02:10pm until July 3, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • This Afternoon

    High: 97 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 76. Light and variable wind.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. South southwest wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Mostly Clear

  • Independence Day

    Independence Day: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. Light and variable wind. Chance of precipitation is 30%.

    Low: 74 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Light west wind.

    High: 94 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 97. Heat index values as high as 106. South wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 76. Light and variable wind.
Friday
Sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Friday Night
Mostly clear, with a low around 75. South southwest wind around 5 mph becoming calm in the evening.
Independence Day
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Calm wind becoming south southwest around 5 mph in the afternoon.
Saturday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. Light and variable wind. Chance of precipitation is 30%.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Light west wind.
Sunday Night
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. Calm wind.
Monday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91. Light and variable wind.
Monday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71. Light north wind.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Light north northeast wind.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. Light north wind.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Light and variable wind.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Benton IL
 38°N 88.93°W
Last Update:
1:26 pm CDT Jul 2, 2026
Forecast Valid:
2pm CDT Jul 2, 2026-6pm CDT Jul 8, 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