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

64°F

18°C

Humidity 88%
Wind Speed NE 3 mph
Barometer 30.07 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 30 Aug 2:15 am CDT
Extended Forecast for

Energy IL

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 61. Light east wind.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86. Northeast wind 3 to 8 mph.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 60. East northeast wind 3 to 6 mph.

    Low: 60 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 84. Light east northeast wind becoming northeast 5 to 9 mph in the morning.

    High: 84 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 57. Northeast wind 3 to 7 mph.

    Low: 57 °F

    Mostly Cloudy

  • Labor Day

    Labor Day: Partly sunny, with a high near 83. Northeast wind 3 to 6 mph.

    High: 83 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, mainly after 1pm. Mostly sunny, with a high near 82. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 82 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly before 1am. Partly cloudy, with a low around 58. Light and variable wind.

    Low: 58 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 61. Light east wind.
Saturday
Sunny, with a high near 86. Northeast wind 3 to 8 mph.
Saturday Night
Mostly cloudy, with a low around 60. East northeast wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 84. Light east northeast wind becoming northeast 5 to 9 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 57. Northeast wind 3 to 7 mph.
Labor Day
Partly sunny, with a high near 83. Northeast wind 3 to 6 mph.
Monday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 60. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers, mainly after 1pm. Mostly sunny, with a high near 82. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
A chance of showers, mainly before 1am. Partly cloudy, with a low around 58. Light and variable wind.
Wednesday
A chance of showers after 1pm. Mostly sunny, with a high near 84. Calm wind becoming west 5 to 8 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 51. North northwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 72. North northwest wind 7 to 10 mph.
Thursday Night
Mostly clear, with a low around 48. North northwest wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 79. Calm wind becoming west 5 to 8 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Energy IL
 37.78°N 89.03°W
Last Update:
2:16 am CDT Aug 30, 2025
Forecast Valid:
2am CDT Aug 30, 2025-6pm CDT Sep 5, 2025
 
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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