National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

68°F

20°C

Humidity 98%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 4 Aug 11:55 pm CDT
Extended Forecast for

Buckner IL

  • Overnight

    Overnight: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91. Calm wind becoming south around 5 mph.

    High: 91 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms between 3am and 4am. Increasing clouds, with a low around 70. Light south southeast wind. Chance of precipitation is 20%.

    Low: 70 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 88 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 60%.

    High: 88 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Light south southwest wind.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71. Light south wind.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 64. Calm wind.
Wednesday
Sunny, with a high near 91. Calm wind becoming south around 5 mph.
Wednesday Night
A slight chance of showers and thunderstorms between 3am and 4am. Increasing clouds, with a low around 70. Light south southeast wind. Chance of precipitation is 20%.
Thursday
A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 88. Calm wind becoming south southwest around 5 mph in the afternoon.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 71. Calm wind.
Friday
Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Light south southwest wind.
Saturday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 71. Light south wind.
Sunday
Sunny, with a high near 93. Light south wind becoming south southwest 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 74. South wind 6 to 9 mph.
Monday
Sunny, with a high near 96. South southwest wind 7 to 14 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 76. South southwest wind 9 to 13 mph.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 95. South southwest wind 8 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Buckner IL
 38°N 88.99°W
Last Update:
8:46 pm CDT Aug 4, 2026
Forecast Valid:
12am CDT Aug 5, 2026-6pm CDT Aug 11, 2026
 
Forecast Discussion
 
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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