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.

Overcast

77°F

25°C

Humidity 94%
Wind Speed W 15 G 22 mph
Barometer 29.94 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 27 Jun 6:45 am CDT
Extended Forecast for

Buncombe IL

Flood Watch June 27, 07:06am until June 28, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 27, 07:06am until June 28, 07:00am

    NOW until 7:00am Sun

    Flood Watch

  • Today

    High: 83 °F

    T-storms
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 91. Heat index values as high as 106. Light south wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 91 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 73. South southwest wind around 6 mph becoming calm in the evening.

    Low: 73 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94. Calm wind becoming south southwest 5 to 8 mph in the morning.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 75. South wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 75. Calm wind.

    Low: 75 °F

    Clear

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before 3pm. Mostly cloudy, with a high near 83. Southwest wind 3 to 8 mph. Chance of precipitation is 70%.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 91. Heat index values as high as 106. Light south wind becoming south southwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Sunday Night
Mostly clear, with a low around 73. South southwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 94. Calm wind becoming south southwest 5 to 8 mph in the morning.
Monday Night
Clear, with a low around 75. South wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 95. Calm wind becoming south southwest around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 75. Calm wind.
Wednesday
Sunny, with a high near 95. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 76. Calm wind.
Thursday
Sunny, with a high near 94. Light and variable wind.
Thursday Night
Mostly clear, with a low around 75. Calm wind.
Friday
A slight chance of showers and thunderstorms. Sunny, with a high near 92. Light and variable wind.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Buncombe IL
 37.47°N 88.96°W
Last Update:
5:06 am CDT Jun 27, 2026
Forecast Valid:
7am CDT Jun 27, 2026-6pm CDT Jul 3, 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