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

79°F

26°C

Humidity 54%
Wind Speed SW 15 mph
Barometer 30.05 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 5 Jun 11:45 am CDT
Extended Forecast for

Energy IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 86. South southwest wind 13 to 15 mph, with gusts as high as 22 mph.

    High: 86 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 70. South wind 5 to 13 mph, with gusts as high as 18 mph.

    Low: 70 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 88. South southwest wind 6 to 11 mph.

    High: 88 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 71. South southwest wind 6 to 11 mph becoming light south after midnight.

    Low: 71 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 85. Light south wind becoming south southeast 5 to 10 mph in the morning. Chance of precipitation is 70%.

    High: 85 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. South southeast wind 5 to 10 mph. Chance of precipitation is 70%.

    Low: 71 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 83. South wind 6 to 10 mph. Chance of precipitation is 90%.

    High: 83 °F

    Showers then
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 72. South wind 5 to 8 mph.

    Low: 72 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 88. South southwest wind 6 to 9 mph.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 86. South southwest wind 13 to 15 mph, with gusts as high as 22 mph.
Tonight
Partly cloudy, with a low around 70. South wind 5 to 13 mph, with gusts as high as 18 mph.
Saturday
Partly sunny, with a high near 88. South southwest wind 6 to 11 mph.
Saturday Night
Mostly cloudy, with a low around 71. South southwest wind 6 to 11 mph becoming light south after midnight.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 85. Light south wind becoming south southeast 5 to 10 mph in the morning. Chance of precipitation is 70%.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. South southeast wind 5 to 10 mph. Chance of precipitation is 70%.
Monday
Showers and possibly a thunderstorm. High near 83. South wind 6 to 10 mph. Chance of precipitation is 90%.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 72. South wind 5 to 8 mph.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. South southwest wind 6 to 9 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 73. South wind 5 to 7 mph.
Wednesday
A slight chance of showers and thunderstorms. Sunny, with a high near 90. South southwest wind 6 to 9 mph.
Wednesday Night
Mostly clear, with a low around 75. South southwest wind 3 to 7 mph.
Thursday
Sunny, with a high near 92. Southwest wind 3 to 8 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:
11:21 am CDT Jun 5, 2026
Forecast Valid:
12pm CDT Jun 5, 2026-6pm CDT Jun 11, 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