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.

Fair

79°F

26°C

Humidity 39%
Wind Speed SW 10 mph
Barometer 29.95 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Mar 12:45 pm CDT
Extended Forecast for

Energy IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 83. Southwest wind around 11 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 54. Southwest wind 5 to 9 mph becoming calm after midnight.

    Low: 54 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 82. East northeast wind around 5 mph becoming light and variable.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61. South southwest wind 3 to 8 mph.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84. South southwest wind 9 to 15 mph, with gusts as high as 23 mph.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 1am. Partly cloudy, with a low around 42. West southwest wind around 14 mph becoming north after midnight. Winds could gust as high as 22 mph.

    Low: 42 °F

    Slight Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 57. North northeast wind 11 to 13 mph, with gusts as high as 20 mph.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38. Northeast wind around 6 mph.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 60. South southeast wind around 6 mph.

    High: 60 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 83. Southwest wind around 11 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 54. Southwest wind 5 to 9 mph becoming calm after midnight.
Saturday
Sunny, with a high near 82. East northeast wind around 5 mph becoming light and variable.
Saturday Night
Mostly clear, with a low around 61. South southwest wind 3 to 8 mph.
Sunday
Sunny, with a high near 84. South southwest wind 9 to 15 mph, with gusts as high as 23 mph.
Sunday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 42. West southwest wind around 14 mph becoming north after midnight. Winds could gust as high as 22 mph.
Monday
Sunny, with a high near 57. North northeast wind 11 to 13 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 38. Northeast wind around 6 mph.
Tuesday
Partly sunny, with a high near 60. South southeast wind around 6 mph.
Tuesday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 42. Light and variable wind becoming south around 5 mph after midnight.
Wednesday
A slight chance of showers. Partly sunny, with a high near 68. Northeast wind 6 to 9 mph becoming south southeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 49. South southeast wind 6 to 8 mph.
Thursday
Sunny, with a high near 77. South southwest wind 10 to 16 mph, with gusts as high as 24 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Energy IL
 37.76°N 89°W
Last Update:
1:26 pm CDT Mar 20, 2026
Forecast Valid:
1pm CDT Mar 20, 2026-6pm CDT Mar 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation