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.

A Few Clouds

27°F

-3°C

Humidity 31%
Wind Speed NW 10 mph
Barometer 30.41 in
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 19 Jan 3:45 pm CST
Extended Forecast for

Energy IL

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 25. Northwest wind 8 to 14 mph, with gusts as high as 18 mph.

    High: 25 °F

    Mostly Sunny

  • Tonight

    Tonight: Clear, with a low around 10. Northwest wind around 5 mph becoming calm in the evening.

    Low: 10 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 36. Light south wind becoming south southwest 9 to 14 mph in the morning. Winds could gust as high as 22 mph.

    High: 36 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 28. South wind 10 to 14 mph, with gusts as high as 26 mph.

    Low: 28 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 47. Southwest wind 8 to 14 mph, with gusts as high as 26 mph.

    High: 47 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 24. Southwest wind around 6 mph becoming northwest after midnight.

    Low: 24 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 38. North northwest wind 5 to 7 mph.

    High: 38 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 14. North northeast wind 3 to 8 mph.

    Low: 14 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of snow showers after noon. Mostly cloudy, with a high near 23. North wind 9 to 14 mph, with gusts as high as 21 mph.

    High: 23 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

Detailed Forecast

M.L.King Day
Mostly sunny, with a high near 25. Northwest wind 8 to 14 mph, with gusts as high as 18 mph.
Tonight
Clear, with a low around 10. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 36. Light south wind becoming south southwest 9 to 14 mph in the morning. Winds could gust as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 28. South wind 10 to 14 mph, with gusts as high as 26 mph.
Wednesday
Mostly sunny, with a high near 47. Southwest wind 8 to 14 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly clear, with a low around 24. Southwest wind around 6 mph becoming northwest after midnight.
Thursday
Mostly sunny, with a high near 38. North northwest wind 5 to 7 mph.
Thursday Night
Partly cloudy, with a low around 14. North northeast wind 3 to 8 mph.
Friday
A slight chance of snow showers after noon. Mostly cloudy, with a high near 23. North wind 9 to 14 mph, with gusts as high as 21 mph.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 4. North northeast wind 11 to 14 mph, with gusts as high as 21 mph.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 15. North northeast wind 11 to 13 mph, with gusts as high as 20 mph.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 6. North wind 7 to 10 mph.
Sunday
A slight chance of snow showers. Mostly sunny, with a high near 22. North wind 6 to 9 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Energy IL
 37.76°N 89°W
Last Update:
3:16 pm CST Jan 19, 2026
Forecast Valid:
3pm 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation