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

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

66°F

19°C

Humidity 87%
Wind Speed SW 5 mph
Barometer 29.77 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 16 Jun 9:55 pm CDT
Extended Forecast for

Buckner IL

  • Tonight

    Tonight: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Windy, with a south southwest wind 5 to 15 mph increasing to 21 to 31 mph. Winds could gust as high as 41 mph.

    High: 89 °F

    Sunny and
    Windy

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 72. Breezy, with a west southwest wind 23 to 28 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 80%.

    Low: 72 °F

    Showers and
    Breezy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 85. West southwest wind 7 to 9 mph becoming northwest in the afternoon.

    High: 85 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 62. North northwest wind around 6 mph becoming calm in the evening.

    Low: 62 °F

    Chance
    Showers

  • Juneteenth

    Juneteenth: Sunny, with a high near 84. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. North wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 87. Calm wind becoming south around 5 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. South southeast wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 60. Calm wind.
Wednesday
Sunny, with a high near 89. Windy, with a south southwest wind 5 to 15 mph increasing to 21 to 31 mph. Winds could gust as high as 41 mph.
Wednesday Night
Showers and possibly a thunderstorm. Low around 72. Breezy, with a west southwest wind 23 to 28 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 80%.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 85. West southwest wind 7 to 9 mph becoming northwest in the afternoon.
Thursday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 62. North northwest wind around 6 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 84. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Friday Night
Mostly clear, with a low around 62. North wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 87. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. South southeast wind around 5 mph becoming calm in the evening.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. South wind 6 to 14 mph, with gusts as high as 20 mph.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. West northwest wind around 11 mph.
Monday Night
A chance of showers. Partly cloudy, with a low around 66. North northeast wind 3 to 8 mph.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 84. North wind around 6 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Buckner IL
 38°N 88.99°W
Last Update:
2:28 pm CDT Jun 16, 2026
Forecast Valid:
10pm CDT Jun 16, 2026-6pm CDT Jun 23, 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