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.

Overcast

52°F

11°C

Humidity 88%
Wind Speed SW 12 mph
Barometer 29.96 in
Dewpoint 48°F (9°C)
Visibility 7.00 mi
Wind Chill48°F (9°C)
Last update 17 Feb 11:47 am CST
Extended Forecast for

Energy IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 55. South wind 13 to 16 mph, with gusts as high as 25 mph.

    High: 55 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of showers between 1am and 4am. Mostly cloudy, with a temperature rising to around 59 by 5am. Breezy, with a south wind 17 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    Low: 55 °F⇑

    Breezy.
    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 72. Southwest wind 8 to 16 mph, with gusts as high as 26 mph.

    High: 72 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after midnight. Partly cloudy, with a low around 53. South wind 6 to 8 mph.

    Low: 53 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly after noon. Partly sunny, with a high near 70. South wind 7 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before midnight. Mostly clear, with a low around 41. South southwest wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 20 mph.

    Low: 41 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 53. West wind 6 to 13 mph, with gusts as high as 20 mph.

    High: 53 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers after midnight. Partly cloudy, with a low around 33. North wind 3 to 6 mph.

    Low: 33 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, mainly after noon. Mostly sunny, with a high near 47. North northeast wind 6 to 11 mph.

    High: 47 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 55. South wind 13 to 16 mph, with gusts as high as 25 mph.
Tonight
A slight chance of showers between 1am and 4am. Mostly cloudy, with a temperature rising to around 59 by 5am. Breezy, with a south wind 17 to 21 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 72. Southwest wind 8 to 16 mph, with gusts as high as 26 mph.
Wednesday Night
A 40 percent chance of showers after midnight. Partly cloudy, with a low around 53. South wind 6 to 8 mph.
Thursday
Showers likely, mainly after noon. Partly sunny, with a high near 70. South wind 7 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Thursday Night
A 20 percent chance of showers before midnight. Mostly clear, with a low around 41. South southwest wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 20 mph.
Friday
Sunny, with a high near 53. West wind 6 to 13 mph, with gusts as high as 20 mph.
Friday Night
A slight chance of showers after midnight. Partly cloudy, with a low around 33. North wind 3 to 6 mph.
Saturday
A chance of showers, mainly after noon. Mostly sunny, with a high near 47. North northeast wind 6 to 11 mph.
Saturday Night
A chance of rain and snow showers before midnight, then a slight chance of snow showers. Partly cloudy, with a low around 27. North northwest wind around 10 mph, with gusts as high as 20 mph.
Sunday
A slight chance of rain and snow showers. Mostly sunny, with a high near 39. Northwest wind 10 to 16 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 21. North northwest wind 7 to 11 mph, with gusts as high as 18 mph.
Monday
Sunny, with a high near 39. North northwest wind 5 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:
12:26 pm CST Feb 17, 2026
Forecast Valid:
1pm CST Feb 17, 2026-6pm CST Feb 23, 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