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.

Partly Cloudy

39°F

4°C

Humidity 62%
Wind Speed E 3 mph
Barometer 30.23 in
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 12 Feb 9:35 pm CST
Extended Forecast for

Energy IL

  • Tonight

    Tonight: Mostly clear, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 58. Calm wind becoming south 5 to 8 mph in the morning.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 37. Calm wind.

    Low: 37 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Showers likely, mainly after noon. Cloudy, with a high near 56. Calm wind becoming east southeast 5 to 8 mph in the morning. Chance of precipitation is 70%.

    High: 56 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers. Low around 43. East southeast wind 6 to 8 mph. Chance of precipitation is 90%.

    Low: 43 °F

    Showers

  • Sunday

    Sunday: A 50 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 57. Northeast wind 8 to 11 mph.

    High: 57 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. North northeast wind 5 to 8 mph becoming calm in the evening.

    Low: 37 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 62. Calm wind becoming south southeast around 6 mph in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44. South wind 3 to 5 mph.

    Low: 44 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 31. Calm wind.
Friday
Sunny, with a high near 58. Calm wind becoming south 5 to 8 mph in the morning.
Friday Night
Increasing clouds, with a low around 37. Calm wind.
Saturday
Showers likely, mainly after noon. Cloudy, with a high near 56. Calm wind becoming east southeast 5 to 8 mph in the morning. Chance of precipitation is 70%.
Saturday Night
Showers. Low around 43. East southeast wind 6 to 8 mph. Chance of precipitation is 90%.
Sunday
A 50 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 57. Northeast wind 8 to 11 mph.
Sunday Night
Mostly clear, with a low around 37. North northeast wind 5 to 8 mph becoming calm in the evening.
Washington's Birthday
Mostly sunny, with a high near 62. Calm wind becoming south southeast around 6 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 44. South wind 3 to 5 mph.
Tuesday
Mostly cloudy, with a high near 66. South wind 6 to 16 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 54. South southwest wind around 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly cloudy, with a high near 70. South southwest wind 14 to 17 mph, with gusts as high as 26 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 48. Southwest wind 8 to 13 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 64. Southwest wind 8 to 13 mph, with gusts as high as 20 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Energy IL
 37.76°N 89°W
Last Update:
7:57 pm CST Feb 12, 2026
Forecast Valid:
9pm CST Feb 12, 2026-6pm CST Feb 19, 2026
 
Forecast Discussion
 
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Additional Resources

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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