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

80°F

27°C

Humidity 80%
Wind Speed SW 8 mph
Barometer 29.66 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 18 Jun 2:55 am CDT
Extended Forecast for

6 Miles WSW Goreville IL

  • Overnight

    Overnight: Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Steady temperature around 76. West southwest wind around 7 mph. Chance of precipitation is 80%.

    Low: 76 °F

    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 8am. Mostly sunny, with a high near 85. Light and variable wind becoming north northwest around 6 mph in the morning. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63. North northwest wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 83. Light north wind.

    High: 83 °F

    Mostly Sunny

  • Friday Night

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

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 85. Calm wind becoming south around 5 mph.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 84. Light south wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 84 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Mostly cloudy, with a low around 67. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Showers

Detailed Forecast

Overnight
Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Steady temperature around 76. West southwest wind around 7 mph. Chance of precipitation is 80%.
Thursday
Showers and thunderstorms likely, mainly before 8am. Mostly sunny, with a high near 85. Light and variable wind becoming north northwest around 6 mph in the morning. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 63. North northwest wind around 5 mph becoming calm in the evening.
Juneteenth
Mostly sunny, with a high near 83. Light north wind.
Friday Night
Partly cloudy, with a low around 63. Calm wind.
Saturday
Mostly sunny, with a high near 85. Calm wind becoming south around 5 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Calm wind.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 84. Light south wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Mostly cloudy, with a low around 67. Southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Monday
A chance of showers, mainly before 1pm. Mostly cloudy, with a high near 80. North northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 61. North wind 5 to 8 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 81. North northeast wind 3 to 5 mph.
Tuesday Night
Partly cloudy, with a low around 62. Calm wind.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Calm wind.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Goreville IL
 37.52°N 89.07°W
Last Update:
2:01 am CDT Jun 18, 2026
Forecast Valid:
3am CDT Jun 18, 2026-6pm CDT Jun 24, 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