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.

Mostly Cloudy

72°F

22°C

Humidity 98%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 17 Aug 6:15 am CDT
Extended Forecast for

Buckner IL

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 86. Light and variable wind becoming north northwest 6 to 11 mph in the morning.

    High: 86 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 65. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 88. Calm wind.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 69. Light southeast wind. Chance of precipitation is 40%.

    Low: 69 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 90. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 70%.

    High: 90 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Light north northeast wind. Chance of precipitation is 70%.

    Low: 68 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Calm wind becoming north northeast 5 to 7 mph in the morning. Chance of precipitation is 60%.

    High: 84 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 65. North northeast wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 85. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 85 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 86. Light and variable wind becoming north northwest 6 to 11 mph in the morning.
Tonight
Partly cloudy, with a low around 65. North northwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 88. Calm wind.
Tuesday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 69. Light southeast wind. Chance of precipitation is 40%.
Wednesday
Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 90. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. Light north northeast wind. Chance of precipitation is 70%.
Thursday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 84. Calm wind becoming north northeast 5 to 7 mph in the morning. Chance of precipitation is 60%.
Thursday Night
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 65. North northeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 85. Calm wind becoming north 5 to 7 mph in the afternoon.
Friday Night
Mostly clear, with a low around 64. Light north wind.
Saturday
Sunny, with a high near 86. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 64. Light north wind.
Sunday
Sunny, with a high near 85. Calm wind becoming north northwest 5 to 7 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Buckner IL
 37.98°N 89.02°W
Last Update:
5:26 am CDT Aug 17, 2026
Forecast Valid:
6am CDT Aug 17, 2026-6pm CDT Aug 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation