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

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Mostly Cloudy

30°F

-1°C

Humidity 46%
Wind Speed W 8 mph
Barometer 30.11 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 19 Jan 1:15 am CST
Extended Forecast for

Energy IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 15. Northwest wind 8 to 11 mph, with gusts as high as 24 mph.

    Low: 15 °F

    Mostly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a steady temperature around 20. Northwest wind 7 to 17 mph, with gusts as high as 28 mph.

    High: 20 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 11. West northwest wind around 5 mph becoming calm in the evening.

    Low: 11 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 37. Light south southwest wind increasing to 6 to 11 mph in the morning.

    High: 37 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 27. South wind 9 to 14 mph, with gusts as high as 25 mph.

    Low: 27 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 46. Southwest wind 8 to 15 mph, with gusts as high as 25 mph.

    High: 46 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25. Southwest wind around 6 mph becoming northwest after midnight.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 37. Northwest wind 3 to 8 mph.

    High: 37 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 18. Calm wind becoming north northeast 5 to 7 mph after midnight.

    Low: 18 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 15. Northwest wind 8 to 11 mph, with gusts as high as 24 mph.
M.L.King Day
Sunny, with a steady temperature around 20. Northwest wind 7 to 17 mph, with gusts as high as 28 mph.
Monday Night
Mostly clear, with a low around 11. West northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 37. Light south southwest wind increasing to 6 to 11 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 27. South wind 9 to 14 mph, with gusts as high as 25 mph.
Wednesday
Mostly sunny, with a high near 46. Southwest wind 8 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 25. Southwest wind around 6 mph becoming northwest after midnight.
Thursday
Mostly sunny, with a high near 37. Northwest wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 18. Calm wind becoming north northeast 5 to 7 mph after midnight.
Friday
Mostly cloudy, with a high near 28. North wind 7 to 14 mph, with gusts as high as 18 mph.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 5. North wind around 11 mph, with gusts as high as 20 mph.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 18. North northeast wind 10 to 13 mph, with gusts as high as 20 mph.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 9. North northeast wind 6 to 10 mph.
Sunday
Mostly sunny, with a high near 25. North northeast wind 7 to 9 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:
12:51 am CST Jan 19, 2026
Forecast Valid:
1am CST Jan 19, 2026-6pm CST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation