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

61°F

16°C

Humidity 83%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 27 Sep 8:47 am CDT
Extended Forecast for

Goreville IL

  • Today

    Today: Mostly cloudy, with a high near 74. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 74 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 75. Light northeast wind.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 53. Calm wind.

    Low: 53 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. Light south southeast wind.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 84. South wind 5 to 9 mph.

    High: 84 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers after 1am. Mostly cloudy, with a low around 68. South southeast wind 3 to 8 mph.

    Low: 68 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, mainly after 1pm. Mostly cloudy, with a high near 82. South southwest wind 8 to 10 mph.

    High: 82 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly cloudy, with a high near 74. Calm wind becoming north northeast around 5 mph in the afternoon.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 53. Calm wind.
Monday
Sunny, with a high near 75. Light northeast wind.
Monday Night
Clear, with a low around 53. Calm wind.
Tuesday
Sunny, with a high near 79. Light south southeast wind.
Tuesday Night
Partly cloudy, with a low around 61. Calm wind becoming south southeast around 5 mph after midnight.
Wednesday
Partly sunny, with a high near 84. South wind 5 to 9 mph.
Wednesday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 68. South southeast wind 3 to 8 mph.
Thursday
A chance of showers, mainly after 1pm. Mostly cloudy, with a high near 82. South southwest wind 8 to 10 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 66. South wind 3 to 6 mph.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 76. South southwest wind 7 to 9 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East wind 3 to 6 mph.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 73. Southeast wind 6 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Goreville IL
 37.56°N 88.99°W
Last Update:
7:16 am CDT Sep 27, 2026
Forecast Valid:
8am CDT Sep 27, 2026-6pm CDT Oct 3, 2026
 
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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