Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

73°F

23°C

Humidity 69%
Wind Speed S 3 mph
Barometer 29.92 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 20 Sep 12:15 am CDT
Extended Forecast for

Energy IL

Heat Advisory September 20, 02:24am until September 20, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 20, 02:24am until September 20, 07:00pm

    NOW until 7:00pm Sun

    Heat Advisory

  • Overnight

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 95. West wind 6 to 9 mph.

    High: 95 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Increasing clouds, with a low around 69. Calm wind becoming northeast around 5 mph after midnight.

    Low: 69 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 84. North northeast wind 6 to 10 mph.  Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 62. North wind 6 to 11 mph.  Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 75. North wind 8 to 14 mph.

    High: 75 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 57. North wind 7 to 13 mph.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. North wind 8 to 13 mph.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 76. South southwest wind around 6 mph.
Sunday
Mostly sunny, with a high near 95. West wind 6 to 9 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 69. Calm wind becoming northeast around 5 mph after midnight.
Monday
A chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. North northeast wind 6 to 10 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. North wind 6 to 11 mph. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 75. North wind 8 to 14 mph.
Tuesday Night
Partly cloudy, with a low around 57. North wind 7 to 13 mph.
Wednesday
Mostly sunny, with a high near 74. North wind 8 to 13 mph.
Wednesday Night
Mostly clear, with a low around 55. North wind 5 to 10 mph becoming light north northeast after midnight.
Thursday
Mostly sunny, with a high near 76. Light north wind increasing to 5 to 9 mph in the morning.
Thursday Night
Partly cloudy, with a low around 57. North northeast wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 77. Light north northeast wind becoming northeast 5 to 9 mph in the morning.
Friday Night
Partly cloudy, with a low around 55. North northeast wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 78. Calm wind becoming northeast 5 to 7 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Energy IL
 37.76°N 89°W
1:26 am CDT Sep 20, 2026
2am CDT Sep 20, 2026-6pm CDT Sep 26, 2026
 
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Additional Resources

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