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

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

61°F

16°C

Humidity 42%
Wind Speed W 12 mph
Barometer 30.27 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 19 Apr 11:45 am CDT
Extended Forecast for

Energy IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 67. West wind 11 to 13 mph, with gusts as high as 21 mph.

    High: 67 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. West wind around 6 mph becoming light and variable after midnight.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67. Light and variable wind becoming east around 6 mph.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. South southeast wind 5 to 7 mph.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Southwest wind 8 to 16 mph, with gusts as high as 25 mph.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 54. Southwest wind 7 to 13 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. South wind around 6 mph.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. South wind 6 to 16 mph, with gusts as high as 26 mph.

    High: 82 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 67. West wind 11 to 13 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 40. West wind around 6 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 67. Light and variable wind becoming east around 6 mph.
Monday Night
Mostly clear, with a low around 48. South southeast wind 5 to 7 mph.
Tuesday
Mostly sunny, with a high near 77. Southwest wind 8 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
Clear, with a low around 54. Southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 79. Southwest wind 6 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 58. South wind around 6 mph.
Thursday
Sunny, with a high near 82. South wind 6 to 16 mph, with gusts as high as 26 mph.
Thursday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. South wind around 11 mph, with gusts as high as 21 mph.
Friday
Showers and thunderstorms likely. Partly sunny, with a high near 78. South southwest wind 13 to 15 mph, with gusts as high as 25 mph.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Southwest wind 8 to 10 mph becoming northwest after midnight. Winds could gust as high as 18 mph.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 71. North northwest wind 9 to 11 mph, with gusts as high as 18 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Energy IL
 37.76°N 89°W
Last Update:
9:06 am CDT Apr 19, 2026
Forecast Valid:
12pm CDT Apr 19, 2026-6pm CDT Apr 25, 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