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.

Overcast

70°F

21°C

Humidity 90%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 23 May 7:35 pm CDT
Extended Forecast for

Energy IL

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly before 4pm. Mostly cloudy, with a high near 79. Calm wind becoming north northeast around 5 mph. Chance of precipitation is 70%.

    High: 79 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Increasing clouds, with a low around 63. Calm wind.

    Low: 63 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Memorial Day

    Memorial Day: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Calm wind becoming east 5 to 8 mph in the morning. Chance of precipitation is 40%.

    High: 79 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 65. East southeast wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 70%.

    Low: 65 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 78. Southeast wind 3 to 8 mph. Chance of precipitation is 90%.

    High: 78 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Southeast wind 3 to 6 mph. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. South wind 5 to 7 mph.

    High: 82 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Light south southeast wind.

    Low: 68 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 62. Calm wind.
Sunday
Showers and thunderstorms likely, mainly before 4pm. Mostly cloudy, with a high near 79. Calm wind becoming north northeast around 5 mph. Chance of precipitation is 70%.
Sunday Night
A 20 percent chance of showers after 1am. Increasing clouds, with a low around 63. Calm wind.
Memorial Day
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Calm wind becoming east 5 to 8 mph in the morning. Chance of precipitation is 40%.
Monday Night
Showers likely, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 65. East southeast wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 70%.
Tuesday
Showers and possibly a thunderstorm. High near 78. Southeast wind 3 to 8 mph. Chance of precipitation is 90%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67. Southeast wind 3 to 6 mph. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 82. South wind 5 to 7 mph.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Light south southeast wind.
Thursday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Calm wind becoming south southeast around 5 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Light east wind.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Light east northeast wind increasing to 5 to 9 mph in the morning.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East northeast wind 6 to 8 mph.
Saturday
A slight chance of showers. Partly sunny, with a high near 79. East northeast wind 7 to 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Energy IL
 37.76°N 89°W
Last Update:
5:31 pm CDT May 23, 2026
Forecast Valid:
7pm CDT May 23, 2026-6pm CDT May 30, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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