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

39°F

4°C

Humidity 42%
Wind Speed E 7 mph
Barometer 30.39 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 7 Feb 2:45 pm CST
Extended Forecast for

Energy IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 37. East wind around 6 mph.

    High: 37 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 25. Southeast wind around 7 mph.

    Low: 25 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 47. Southeast wind 7 to 10 mph.

    High: 47 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29. East southeast wind around 6 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55. Light and variable wind.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38. Calm wind becoming south southwest around 6 mph in the evening.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 62. South southwest wind 6 to 10 mph becoming north northwest in the afternoon.

    High: 62 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely. Mostly cloudy, with a low around 38. North northeast wind around 7 mph.

    Low: 38 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers, mainly before noon. Mostly cloudy, with a high near 48. Northeast wind 7 to 9 mph.

    High: 48 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 37. East wind around 6 mph.
Tonight
Mostly cloudy, with a low around 25. Southeast wind around 7 mph.
Sunday
Partly sunny, with a high near 47. Southeast wind 7 to 10 mph.
Sunday Night
Mostly clear, with a low around 29. East southeast wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 55. Light and variable wind.
Monday Night
Mostly clear, with a low around 38. Calm wind becoming south southwest around 6 mph in the evening.
Tuesday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 62. South southwest wind 6 to 10 mph becoming north northwest in the afternoon.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 38. North northeast wind around 7 mph.
Wednesday
A chance of showers, mainly before noon. Mostly cloudy, with a high near 48. Northeast wind 7 to 9 mph.
Wednesday Night
A chance of showers, mainly after midnight. Mostly cloudy, with a low around 34. East northeast wind around 6 mph.
Thursday
A chance of showers. Mostly cloudy, with a high near 46. East northeast wind 6 to 8 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 30. Northeast wind 5 to 7 mph.
Friday
A slight chance of showers. Partly sunny, with a high near 46. Northeast wind 6 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Energy IL
 37.76°N 89°W
Last Update:
1:32 pm CST Feb 7, 2026
Forecast Valid:
3pm CST Feb 7, 2026-6pm CST Feb 13, 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