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.

Fair

73°F

23°C

Humidity 59%
Wind Speed SE 8 mph
Barometer 29.89 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 15 May 9:35 pm CDT
Extended Forecast for

Energy IL

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Increasing clouds, with a low around 68. South southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 68 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84. Southwest wind 11 to 14 mph, with gusts as high as 21 mph.

    High: 84 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming clear, with a low around 66. South wind 7 to 11 mph.

    Low: 66 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 87. South wind 9 to 17 mph, with gusts as high as 26 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69. South wind 11 to 15 mph, with gusts as high as 22 mph.

    Low: 69 °F

    Mostly Clear

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Breezy, with a south wind 13 to 21 mph, with gusts as high as 29 mph.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms and
    Breezy

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. South wind 13 to 16 mph, with gusts as high as 26 mph.

    Low: 72 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 83. South southwest wind 13 to 16 mph, with gusts as high as 26 mph.

    High: 83 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. South southwest wind 5 to 9 mph becoming north northwest after midnight.

    Low: 64 °F

    Showers
    Likely

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Increasing clouds, with a low around 68. South southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84. Southwest wind 11 to 14 mph, with gusts as high as 21 mph.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 66. South wind 7 to 11 mph.
Sunday
Sunny, with a high near 87. South wind 9 to 17 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 69. South wind 11 to 15 mph, with gusts as high as 22 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. Breezy, with a south wind 13 to 21 mph, with gusts as high as 29 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. South wind 13 to 16 mph, with gusts as high as 26 mph.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 83. South southwest wind 13 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. South southwest wind 5 to 9 mph becoming north northwest after midnight.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 75. North wind 7 to 9 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 57. North wind 5 to 8 mph.
Thursday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 77. Northeast wind 7 to 9 mph.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 58. Northeast wind 3 to 7 mph.
Friday
A slight chance of showers. Mostly sunny, with a high near 81. East wind 3 to 7 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Energy IL
 37.76°N 89°W
Last Update:
9:16 pm CDT May 15, 2026
Forecast Valid:
9pm CDT May 15, 2026-6pm CDT May 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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