Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

90°F

32°C

Humidity 63%
Wind Speed W 6 mph
Barometer 30.07 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 16 Aug 10:45 am CDT
Extended Forecast for

Buckner IL

Extreme Heat Warning August 16, 12:23pm until August 16, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 16, 12:23pm until August 16, 08:00pm

    NOW until 8:00pm Sun

    Extreme Heat Warning

  • This Afternoon

    High: 94 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after 1am.  Increasing clouds, with a low around 73. Calm wind.

    Low: 73 °F

    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly before 9am.  Mostly sunny, with a high near 89. Light north northwest wind increasing to 5 to 9 mph in the morning.

    High: 89 °F

    Chance
    T-storms then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67. North northwest wind around 6 mph becoming calm  in the evening.

    Low: 67 °F

    Mostly Clear

  • 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.  Partly cloudy, 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.  Partly cloudy, with a low around 69. Northeast wind 3 to 7 mph.

    Low: 69 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a steady temperature around 94. Heat index values as high as 110. West wind around 7 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after 1am. Increasing clouds, with a low around 73. Calm wind.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 9am. Mostly sunny, with a high near 89. Light north northwest wind increasing to 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 67. North northwest wind around 6 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. Partly cloudy, 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. Partly 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 65. Light north wind.
Saturday
Mostly sunny, with a high near 88. Calm wind becoming north northwest 5 to 7 mph in the morning.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Buckner IL
 38°N 88.99°W
11:41 am CDT Aug 16, 2026
12pm CDT Aug 16, 2026-6pm CDT Aug 22, 2026
 
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Additional Resources

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