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.

Fair

45°F

7°C

Humidity 48%
Wind Speed S 18 G 24 mph
Barometer 29.95 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 13 Mar 2:15 am CDT
Extended Forecast for

Buncombe IL

  • Overnight

    Overnight: Partly cloudy, with a low around 40. South southwest wind 11 to 15 mph, with gusts as high as 21 mph.

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 64. Southwest wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 31 mph.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 38. North northwest wind around 6 mph becoming east after midnight.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 68. East wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 18 mph.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55. South wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm, mainly after 4pm. Mostly cloudy, with a high near 72. Breezy, with a south wind 13 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 60%.

    High: 72 °F

    Breezy.
    Mostly Cloudy
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Rain showers before 1am, then a chance of rain and snow showers between 1am and 4am, then a chance of snow showers after 4am. Some thunder is also possible. Low around 27. South wind around 17 mph becoming west northwest after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 90%.

    Low: 27 °F

    Showers then
    Rain/Snow

  • Monday

    Monday: A slight chance of snow showers before 1pm. Partly sunny, with a high near 34. West northwest wind 15 to 17 mph, with gusts as high as 33 mph.

    High: 34 °F

    Slight Chance
    Snow Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 16. Northwest wind 8 to 15 mph, with gusts as high as 25 mph.

    Low: 16 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 40. South southwest wind 11 to 15 mph, with gusts as high as 21 mph.
Friday
Mostly sunny, with a high near 64. Southwest wind 10 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 31 mph.
Friday Night
Mostly clear, with a low around 38. North northwest wind around 6 mph becoming east after midnight.
Saturday
Mostly sunny, with a high near 68. East wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 55. South wind 6 to 10 mph, with gusts as high as 21 mph.
Sunday
Showers likely and possibly a thunderstorm, mainly after 4pm. Mostly cloudy, with a high near 72. Breezy, with a south wind 13 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 60%.
Sunday Night
Rain showers before 1am, then a chance of rain and snow showers between 1am and 4am, then a chance of snow showers after 4am. Some thunder is also possible. Low around 27. South wind around 17 mph becoming west northwest after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 90%.
Monday
A slight chance of snow showers before 1pm. Partly sunny, with a high near 34. West northwest wind 15 to 17 mph, with gusts as high as 33 mph.
Monday Night
Mostly clear, with a low around 16. Northwest wind 8 to 15 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 38. Northwest wind 6 to 8 mph becoming west southwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 29. South southeast wind 5 to 8 mph.
Wednesday
Mostly cloudy, with a high near 57. South wind 7 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 41. South southwest wind around 6 mph.
Thursday
Sunny, with a high near 68. South southwest wind 5 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Buncombe IL
 37.47°N 88.99°W
Last Update:
1:46 am CDT Mar 13, 2026
Forecast Valid:
2am CDT Mar 13, 2026-6pm CDT Mar 19, 2026
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation