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

52°F

11°C

Humidity 50%
Wind Speed SE 5 mph
Barometer 30.09 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 9 Feb 12:45 pm CST
Extended Forecast for

Energy IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 54. Calm wind.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. Calm wind becoming south southwest 5 to 9 mph in the evening.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 61. South southwest wind 9 to 11 mph becoming north northwest in the afternoon.

    High: 61 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 30. North wind 6 to 9 mph.

    Low: 30 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 48. North wind 5 to 8 mph.

    High: 48 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 46. Calm wind becoming east southeast around 6 mph in the morning.

    High: 46 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 32. East wind around 6 mph becoming calm in the evening.

    Low: 32 °F

    Slight Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 49. East wind 3 to 7 mph.

    High: 49 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 54. Calm wind.
Tonight
Mostly clear, with a low around 40. Calm wind becoming south southwest 5 to 9 mph in the evening.
Tuesday
Partly sunny, with a high near 61. South southwest wind 9 to 11 mph becoming north northwest in the afternoon.
Tuesday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 30. North wind 6 to 9 mph.
Wednesday
Sunny, with a high near 48. North wind 5 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 28. Calm wind.
Thursday
Mostly cloudy, with a high near 46. Calm wind becoming east southeast around 6 mph in the morning.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 32. East wind around 6 mph becoming calm in the evening.
Friday
Mostly cloudy, with a high near 49. East wind 3 to 7 mph.
Friday Night
A chance of showers, mainly after midnight. Mostly cloudy, with a low around 35. East wind around 7 mph.
Saturday
Showers likely. Cloudy, with a high near 50. East wind 7 to 11 mph, with gusts as high as 18 mph.
Saturday Night
Showers. Cloudy, with a low around 38. East wind around 11 mph, with gusts as high as 20 mph.
Sunday
A chance of showers. Mostly cloudy, with a high near 53. North northwest wind 10 to 14 mph, with gusts as high as 21 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Energy IL
 37.76°N 89°W
Last Update:
1:17 pm CST Feb 9, 2026
Forecast Valid:
1pm CST Feb 9, 2026-6pm CST Feb 15, 2026
 
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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