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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Partly Cloudy

72°F

22°C

Humidity 78%
Wind Speed SE 6 mph
Barometer 29.92 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 21 Jun 7:45 am CDT
Extended Forecast for

Buncombe IL

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 87. Light south wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 25 mph.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 3am, then showers likely and possibly a thunderstorm after 4am. Low around 69. South wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.

    Low: 69 °F

    T-storms then
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Mostly cloudy, with a high near 80. West wind 6 to 8 mph. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 62. North wind around 6 mph becoming calm in the evening.

    Low: 62 °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 63. Calm wind.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. Light and variable wind.

    High: 84 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 85. Calm wind becoming west around 5 mph.

    High: 85 °F

    Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 87. Light south wind increasing to 9 to 14 mph in the morning. Winds could gust as high as 25 mph.
Tonight
Showers and thunderstorms, mainly before 3am, then showers likely and possibly a thunderstorm after 4am. Low around 69. South wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.
Monday
A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Mostly cloudy, with a high near 80. West wind 6 to 8 mph. Chance of precipitation is 50%.
Monday Night
Partly cloudy, with a low around 62. 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 63. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. Light and variable wind.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Calm wind.
Thursday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 85. Calm wind becoming west around 5 mph.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 65. Calm wind.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 85. Light and variable wind.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Light south southwest wind.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Light south wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Buncombe IL
 37.47°N 88.99°W
Last Update:
7:16 am CDT Jun 21, 2026
Forecast Valid:
8am CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation