Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

88°F

31°C

Humidity 62%
Wind Speed W 7 mph
Barometer 30.06 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 16 Aug 9:45 am CDT
Extended Forecast for

West Frankfort IL

Extreme Heat Warning August 16, 10:34am until August 16, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 16, 10:34am until August 16, 08:00pm

    NOW until 8:00pm Sun

    Extreme Heat Warning

  • Today

    High: 98 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 73. Light and variable wind.

    Low: 73 °F

    Chance
    T-storms

  • Monday

    Monday: A slight chance of thunderstorms before 7am.  Mostly cloudy, then gradually becoming sunny, with a high near 89. North northwest wind 3 to 8 mph.  Chance of precipitation is 10%.

    High: 89 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Monday Night

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

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 91. Calm wind.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly before 1pm.  Mostly sunny, with a high near 92. Calm wind becoming south southwest 5 to 8 mph in the morning.

    High: 92 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 69. Northeast wind 3 to 7 mph.

    Low: 69 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 109. West southwest wind 6 to 8 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. Light and variable wind.
Monday
A slight chance of thunderstorms before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 89. North northwest wind 3 to 8 mph. Chance of precipitation is 10%.
Monday Night
Partly cloudy, with a low around 67. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 91. Calm wind.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 71. Calm wind.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 92. Calm wind becoming south southwest 5 to 8 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Northeast wind 3 to 7 mph.
Thursday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 85. North northeast wind 3 to 8 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Northeast wind around 6 mph becoming calm in the evening.
Friday
A slight chance of showers. Mostly sunny, with a high near 86. Calm wind becoming north around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 64. Light north northeast wind.
Saturday
Mostly sunny, with a high near 87. Calm wind becoming north northwest 5 to 7 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
West Frankfort IL
 37.89°N 88.94°W
9:16 am CDT Aug 16, 2026
10am CDT Aug 16, 2026-6pm CDT Aug 22, 2026
 
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