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

60°F

16°C

Humidity 91%
Wind Speed S 6 mph
Barometer 29.97 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 17 Apr 3:15 am CDT
Extended Forecast for

Energy IL

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 61. Light south wind.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 54. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

    Low: 54 °F

    Partly Cloudy
    then Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 4pm, then showers likely. High near 66. Southwest wind 13 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%.

    High: 66 °F

    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before 1am. Mostly clear, with a low around 39. North northwest wind 9 to 14 mph becoming light west northwest after midnight. Winds could gust as high as 21 mph.

    Low: 39 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 66. Light west wind becoming west northwest 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 44. Northwest wind around 6 mph becoming light and variable in the evening.

    Low: 44 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 70. Light and variable wind becoming south southwest 5 to 8 mph in the morning.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 51. South wind around 6 mph.

    Low: 51 °F

    Clear

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 61. Light south wind.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 54. South wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Saturday
Showers and possibly a thunderstorm before 4pm, then showers likely. High near 66. Southwest wind 13 to 16 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 80%.
Saturday Night
A 20 percent chance of showers before 1am. Mostly clear, with a low around 39. North northwest wind 9 to 14 mph becoming light west northwest after midnight. Winds could gust as high as 21 mph.
Sunday
Sunny, with a high near 66. Light west wind becoming west northwest 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Mostly clear, with a low around 44. Northwest wind around 6 mph becoming light and variable in the evening.
Monday
Sunny, with a high near 70. Light and variable wind becoming south southwest 5 to 8 mph in the morning.
Monday Night
Clear, with a low around 51. South wind around 6 mph.
Tuesday
Mostly sunny, with a high near 77. Southwest wind 6 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 55. South southwest wind 6 to 9 mph.
Wednesday
Sunny, with a high near 80. South southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 58. South wind around 7 mph.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 82. South wind 6 to 13 mph, with gusts as high as 21 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:
3:06 am CDT Apr 17, 2026
Forecast Valid:
3am CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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