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.

Mostly Cloudy

66°F

19°C

Humidity 94%
Wind Speed S 6 mph
Barometer 30.00 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 5 Mar 5:47 pm CST
Extended Forecast for

Energy IL

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. South wind 3 to 6 mph. Chance of precipitation is 40%.

    Low: 59 °F

    Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of showers between 2pm and 3pm. Partly sunny, with a high near 78. South wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 78 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 63. South wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    Low: 63 °F

    Mostly Cloudy
    then Showers
    Likely

  • Saturday

    Saturday: Showers and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. High near 72. South southwest wind 11 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 90%.

    High: 72 °F

    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 43. Northwest wind 5 to 10 mph becoming light north northwest after midnight.

    Low: 43 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 66. Calm wind becoming west southwest around 6 mph in the morning.

    High: 66 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers after noon. Mostly sunny, with a high near 76. South southwest wind 6 to 14 mph, with gusts as high as 21 mph.

    High: 76 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, mainly after midnight. Partly cloudy, with a low around 60. South southwest wind around 10 mph.

    Low: 60 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. South wind 3 to 6 mph. Chance of precipitation is 40%.
Friday
A 20 percent chance of showers between 2pm and 3pm. Partly sunny, with a high near 78. South wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.
Friday Night
Showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 63. South wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Saturday
Showers and possibly a thunderstorm before noon, then a chance of showers and thunderstorms after noon. High near 72. South southwest wind 11 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 90%.
Saturday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 43. Northwest wind 5 to 10 mph becoming light north northwest after midnight.
Sunday
Mostly sunny, with a high near 66. Calm wind becoming west southwest around 6 mph in the morning.
Sunday Night
Mostly clear, with a low around 50. Calm wind becoming south southwest around 5 mph after midnight.
Monday
A slight chance of showers after noon. Mostly sunny, with a high near 76. South southwest wind 6 to 14 mph, with gusts as high as 21 mph.
Monday Night
A chance of showers and thunderstorms, mainly after midnight. Partly cloudy, with a low around 60. South southwest wind around 10 mph.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 77. South southwest wind 9 to 16 mph, with gusts as high as 26 mph.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. South southwest wind around 15 mph, with gusts as high as 23 mph.
Wednesday
Showers. Mostly cloudy, with a high near 68. South southwest wind 14 to 16 mph becoming north northwest in the afternoon. Winds could gust as high as 25 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 38. North wind 8 to 14 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 56. North wind 7 to 10 mph becoming east in the afternoon.
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:
5:46 pm CST Mar 5, 2026
Forecast Valid:
6pm CST Mar 5, 2026-6pm CDT Mar 12, 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