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.

A Few Clouds

81°F

27°C

Humidity 54%
Wind Speed E 7 G 18 mph
Barometer 30.11 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 25 Aug 10:45 am CDT
Extended Forecast for

Goreville IL

  • Today

    Today: Sunny, with a high near 85. Light east wind.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 89. Light and variable wind.

    High: 89 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 50%.

    Low: 69 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 86. Calm wind becoming north northwest 5 to 8 mph in the morning. Chance of precipitation is 10%.

    High: 86 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. Light north wind.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86. Calm wind becoming north northeast around 6 mph in the morning.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 65. Calm wind.

    Low: 65 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 88. Calm wind.

    High: 88 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 85. Light east wind.
Tonight
Partly cloudy, with a low around 68. Calm wind.
Wednesday
Mostly sunny, with a high near 89. Light and variable wind.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 50%.
Thursday
A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 86. Calm wind becoming north northwest 5 to 8 mph in the morning. Chance of precipitation is 10%.
Thursday Night
Mostly clear, with a low around 65. Light north wind.
Friday
Sunny, with a high near 86. Calm wind becoming north northeast around 6 mph in the morning.
Friday Night
Clear, with a low around 65. Calm wind.
Saturday
Sunny, with a high near 88. Calm wind.
Saturday Night
Mostly clear, with a low around 67. Calm wind.
Sunday
Sunny, with a high near 91. Calm wind becoming south 5 to 7 mph in the morning.
Sunday Night
Mostly clear, with a low around 71. Calm wind becoming south around 5 mph after midnight.
Monday
Sunny, with a high near 93. South southwest wind 6 to 9 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Goreville IL
 37.56°N 88.99°W
Last Update:
10:56 am CDT Aug 25, 2026
Forecast Valid:
11am CDT Aug 25, 2026-6pm CDT Aug 31, 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