Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

93°F

34°C

Humidity 59%
Wind Speed SW 9 mph
Barometer 30.05 in
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index107°F (42°C)
Last update 15 Aug 5:45 pm CDT
Extended Forecast for

5 Miles N Goreville IL

Extreme Heat Warning August 15, 05:50pm until August 16, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 15, 05:50pm until August 16, 08:00pm

    NOW until 8:00pm Sun

    Extreme Heat Warning

  • Tonight

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 98. Heat index values as high as 106. West southwest wind 5 to 7 mph.

    High: 98 °F

    Hot

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly between 8pm and 11pm.  Partly cloudy, with a low around 73. Light and variable wind.

    Low: 73 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers before 1pm.  Partly sunny, with a high near 88. North northwest wind 5 to 8 mph.

    High: 88 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 67. North wind around 5 mph becoming calm  in the evening.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Calm wind.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. Light and variable wind.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms.  Mostly sunny, with a high near 93. South wind 5 to 9 mph becoming west southwest in the afternoon.

    High: 93 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 75. South southwest wind around 5 mph becoming calm.
Sunday
Mostly sunny and hot, with a high near 98. Heat index values as high as 106. West southwest wind 5 to 7 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly between 8pm and 11pm. Partly cloudy, with a low around 73. Light and variable wind.
Monday
A 40 percent chance of showers before 1pm. Partly sunny, with a high near 88. North northwest wind 5 to 8 mph.
Monday Night
Mostly clear, with a low around 67. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 90. Calm wind.
Tuesday Night
Mostly clear, with a low around 70. Light and variable wind.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. South wind 5 to 9 mph becoming west southwest in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. North wind around 6 mph.
Thursday
A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 85. North northeast wind 5 to 8 mph.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. North northeast wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers. Mostly sunny, with a high near 85. Calm wind becoming north northeast 5 to 7 mph in the morning.
Friday Night
Partly cloudy, with a low around 64. Light east northeast wind.
Saturday
Mostly sunny, with a high near 86. Calm wind becoming north around 6 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N Goreville IL
 37.62°N 88.95°W
4:36 pm CDT Aug 15, 2026
5pm CDT Aug 15, 2026-6pm CDT Aug 22, 2026
 
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Additional Resources

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