Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

79°F

26°C

Humidity 89%
Wind Speed E 7 mph
Barometer 29.95 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 13 Aug 9:45 am CDT
Extended Forecast for

2 Miles SSE Energy IL

Extreme Heat Warning August 13, 10:34am until August 16, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 13, 10:34am until August 16, 08:00pm

    NOW until 8:00pm Sun

    Extreme Heat Warning

  • Today

    High: 95 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 77. South wind around 8 mph.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 97. Heat index values as high as 107. Southwest wind 7 to 9 mph.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. South wind 5 to 7 mph.

    Low: 77 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 98. West southwest wind 6 to 8 mph.

    High: 98 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 78. South southwest wind around 8 mph.

    Low: 78 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 99. West wind 7 to 9 mph.

    High: 99 °F

    Hot

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 76. South southwest wind 5 to 8 mph becoming light and variable  after midnight.

    Low: 76 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Partly sunny, with a high near 95. Heat index values as high as 109. South southwest wind 7 to 9 mph.
Tonight
Mostly clear, with a low around 77. South wind around 8 mph.
Friday
Sunny and hot, with a high near 97. Heat index values as high as 107. Southwest wind 7 to 9 mph.
Friday Night
Mostly clear, with a low around 77. South wind 5 to 7 mph.
Saturday
Sunny and hot, with a high near 98. West southwest wind 6 to 8 mph.
Saturday Night
Clear, with a low around 78. South southwest wind around 8 mph.
Sunday
Sunny and hot, with a high near 99. West wind 7 to 9 mph.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. South southwest wind 5 to 8 mph becoming light and variable after midnight.
Monday
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 90. North wind 6 to 10 mph.
Monday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69. North wind 5 to 9 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 88. Calm wind becoming northeast around 6 mph in the morning.
Tuesday Night
Mostly clear, with a low around 70. East wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 91. Light south wind becoming south southwest 5 to 10 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Energy IL
 37.76°N 89°W
9:46 am CDT Aug 13, 2026
10am CDT Aug 13, 2026-6pm CDT Aug 19, 2026
 
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Additional Resources

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