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.

Mostly Cloudy

72°F

22°C

Humidity 78%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 20 Jun 7:45 am CDT
Extended Forecast for

4 Miles SW Buncombe IL

  • Today

    Today: Sunny, with a high near 86. Light and variable wind.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: Showers and thunderstorms likely before 4pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 86. Light southeast wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 70%.

    High: 86 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 70. South southwest wind 8 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.

    Low: 70 °F

    T-storms then
    Showers

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 81. Northwest wind around 8 mph.

    High: 81 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64. North wind around 6 mph becoming calm in the evening.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. Light north northeast wind.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. Light and variable wind.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 86. Light and variable wind.
Tonight
Mostly clear, with a low around 67. Calm wind.
Sunday
Showers and thunderstorms likely before 4pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 86. Light southeast wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 70%.
Sunday Night
Showers and possibly a thunderstorm. Low around 70. South southwest wind 8 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.
Monday
A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 81. Northwest wind around 8 mph.
Monday Night
Partly cloudy, with a low around 64. North wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 82. Light north northeast wind.
Tuesday Night
Mostly clear, with a low around 64. Calm wind.
Wednesday
Sunny, with a high near 84. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 64. Calm wind.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Calm wind becoming west around 5 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 64. Calm wind.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Calm wind becoming south southwest around 5 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Buncombe IL
 37.45°N 89.02°W
Last Update:
7:31 am CDT Jun 20, 2026
Forecast Valid:
8am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
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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