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

59°F

15°C

Humidity 39%
Wind Speed NW 7 G 21 mph
Barometer 30.26 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 5 Apr 4:45 pm CDT
Extended Forecast for

Energy IL

  • Tonight

    Tonight: Clear, with a low around 40. North northwest wind 5 to 9 mph becoming calm in the evening.

    Low: 40 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 65. Light and variable wind becoming northwest 5 to 10 mph in the morning.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40. North northeast wind 6 to 8 mph.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58. East northeast wind around 10 mph.

    High: 58 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40. East southeast wind 6 to 9 mph.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. South wind 6 to 13 mph, with gusts as high as 18 mph.

    High: 73 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. South wind 8 to 10 mph.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 73. South wind 10 to 13 mph, with gusts as high as 21 mph.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers after 1am. Partly cloudy, with a low around 57. South wind around 7 mph.

    Low: 57 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 40. North northwest wind 5 to 9 mph becoming calm in the evening.
Monday
Sunny, with a high near 65. Light and variable wind becoming northwest 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 40. North northeast wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 58. East northeast wind around 10 mph.
Tuesday Night
Partly cloudy, with a low around 40. East southeast wind 6 to 9 mph.
Wednesday
Mostly sunny, with a high near 73. South wind 6 to 13 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 53. South wind 8 to 10 mph.
Thursday
Mostly sunny, with a high near 73. South wind 10 to 13 mph, with gusts as high as 21 mph.
Thursday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 57. South wind around 7 mph.
Friday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 78. South southwest wind 6 to 10 mph.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Southeast wind around 6 mph.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 81. South wind 6 to 9 mph.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 60. South southeast wind around 7 mph.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. South wind 8 to 15 mph, with gusts as high as 24 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Energy IL
 37.76°N 89°W
Last Update:
4:47 pm CDT Apr 5, 2026
Forecast Valid:
5pm CDT Apr 5, 2026-6pm CDT Apr 12, 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