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.

Breezy

55°F

13°C

Humidity 88%
Wind Speed S 21 G 25 mph
Barometer 29.86 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 17 Feb 5:45 pm CST
Extended Forecast for

Buncombe IL

  • Tonight

    Tonight: A slight chance of showers between 2am and 4am. Cloudy, with a temperature rising to around 58 by 4am. South wind 13 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

    Low: 55 °F⇑

    Cloudy then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 71. Southwest wind 8 to 14 mph, with gusts as high as 26 mph.

    High: 71 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after midnight. Partly cloudy, with a low around 56. South wind 3 to 6 mph.

    Low: 56 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A 50 percent chance of showers. Partly sunny, with a high near 70. South southwest wind 5 to 14 mph, with gusts as high as 26 mph.

    High: 70 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 43. West wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 55. West wind 3 to 8 mph.

    High: 55 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 35. Light north wind.

    Low: 35 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, mainly after noon. Mostly sunny, with a high near 49. North wind 3 to 8 mph.

    High: 49 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of rain and snow showers before midnight, then a slight chance of snow showers. Partly cloudy, with a low around 29. North northwest wind around 8 mph.

    Low: 29 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

Detailed Forecast

Tonight
A slight chance of showers between 2am and 4am. Cloudy, with a temperature rising to around 58 by 4am. South wind 13 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 71. Southwest wind 8 to 14 mph, with gusts as high as 26 mph.
Wednesday Night
A 40 percent chance of showers after midnight. Partly cloudy, with a low around 56. South wind 3 to 6 mph.
Thursday
A 50 percent chance of showers. Partly sunny, with a high near 70. South southwest wind 5 to 14 mph, with gusts as high as 26 mph.
Thursday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 43. West wind 6 to 10 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 55. West wind 3 to 8 mph.
Friday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 35. Light north wind.
Saturday
A chance of showers, mainly after noon. Mostly sunny, with a high near 49. North wind 3 to 8 mph.
Saturday Night
A chance of rain and snow showers before midnight, then a slight chance of snow showers. Partly cloudy, with a low around 29. North northwest wind around 8 mph.
Sunday
Mostly sunny, with a high near 41. Northwest wind 8 to 11 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 22. North northwest wind 5 to 8 mph.
Monday
Sunny, with a high near 40. North northwest wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 21. Calm wind.
Tuesday
Mostly sunny, with a high near 46. Calm wind becoming south 5 to 9 mph in the morning.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Buncombe IL
 37.47°N 88.93°W
Last Update:
5:46 pm CST Feb 17, 2026
Forecast Valid:
6pm CST Feb 17, 2026-6pm CST Feb 24, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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