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

60°F

16°C

Humidity 99%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 19 Jun 3:35 am CDT
Extended Forecast for

6 Miles WNW Goreville IL

  • Overnight

    Overnight: Partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 82. Light north wind.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 84. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 67. Light south southeast wind.

    Low: 67 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 84. South wind 6 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.

    High: 84 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 70. Southwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.

    Low: 70 °F

    T-storms then
    Showers

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. West southwest wind 9 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph.

    High: 79 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63. North wind 5 to 8 mph becoming calm in the evening.

    Low: 63 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 63. Calm wind.
Juneteenth
Mostly sunny, with a high near 82. Light north wind.
Friday Night
Partly cloudy, with a low around 64. Calm wind.
Saturday
Mostly sunny, with a high near 84. Calm wind becoming south southwest around 5 mph in the afternoon.
Saturday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 67. Light south southeast wind.
Sunday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 84. South wind 6 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm. Low around 70. Southwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
Monday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. West southwest wind 9 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph.
Monday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63. North wind 5 to 8 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 79. North wind around 5 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 63. Calm wind.
Wednesday
Sunny, with a high near 81. Calm wind becoming northwest around 5 mph.
Wednesday Night
Mostly clear, with a low around 64. Calm wind.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WNW Goreville IL
 37.58°N 89.07°W
Last Update:
1:26 am CDT Jun 19, 2026
Forecast Valid:
3am CDT Jun 19, 2026-6pm CDT Jun 25, 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