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

55°F

13°C

Humidity 63%
Wind Speed S 6 mph
Barometer 30.23 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 9 Apr 4:35 am CDT
Extended Forecast for

Energy IL

  • Today

    Today: Sunny, with a high near 77. South southwest wind 8 to 14 mph, with gusts as high as 26 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. South wind around 9 mph.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 77. South southwest wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 77 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 54. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 54 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 78. East northeast wind around 6 mph becoming south southeast in the afternoon.

    High: 78 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 59. Southeast wind around 6 mph.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 81. South southwest wind 7 to 17 mph, with gusts as high as 28 mph.

    High: 81 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 64. South wind around 14 mph, with gusts as high as 23 mph.

    Low: 64 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 29 mph.

    High: 80 °F

    Chance
    Showers and
    Breezy

Detailed Forecast

Today
Sunny, with a high near 77. South southwest wind 8 to 14 mph, with gusts as high as 26 mph.
Tonight
Mostly clear, with a low around 55. South wind around 9 mph.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 77. South southwest wind 8 to 13 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 54. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.
Saturday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 78. East northeast wind around 6 mph becoming south southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 59. Southeast wind around 6 mph.
Sunday
Partly sunny, with a high near 81. South southwest wind 7 to 17 mph, with gusts as high as 28 mph.
Sunday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 64. South wind around 14 mph, with gusts as high as 23 mph.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 29 mph.
Monday Night
Mostly cloudy, with a low around 67. South southwest wind 11 to 15 mph, with gusts as high as 23 mph.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. South southwest wind 14 to 17 mph, with gusts as high as 28 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. South southwest wind 11 to 14 mph, with gusts as high as 22 mph.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 79. South southwest wind 13 to 15 mph, with gusts as high as 24 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:
4:41 am CDT Apr 9, 2026
Forecast Valid:
4am CDT Apr 9, 2026-6pm CDT Apr 15, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation