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.

Partly Cloudy

40°F

4°C

Humidity 97%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 10 Jan 4:15 am CST
Extended Forecast for

5 Miles WNW Buncombe IL

  • Overnight

    Overnight: A 20 percent chance of showers. Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers between 9am and 11am. Cloudy, then gradual clearing during the afternoon, with a temperature rising to near 46 by 9am, then falling to around 41 during the remainder of the day. Light north northwest wind becoming northwest 8 to 13 mph in the morning. Winds could gust as high as 22 mph.

    High: 46 °F⇓

    Slight Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers between 9pm and midnight. Mostly clear, with a low around 27. Light west northwest wind increasing to 5 to 9 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Low: 27 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 39. Northwest wind 5 to 10 mph becoming light west northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 39 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25. Light and variable wind.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 48. Light south southwest wind becoming southwest 5 to 9 mph in the morning.

    High: 48 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 35. South southwest wind 5 to 7 mph.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 57. Southwest wind 7 to 13 mph, with gusts as high as 23 mph.

    High: 57 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40. West southwest wind 3 to 7 mph.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 44. Calm wind.
Saturday
A 20 percent chance of showers between 9am and 11am. Cloudy, then gradual clearing during the afternoon, with a temperature rising to near 46 by 9am, then falling to around 41 during the remainder of the day. Light north northwest wind becoming northwest 8 to 13 mph in the morning. Winds could gust as high as 22 mph.
Saturday Night
A slight chance of showers between 9pm and midnight. Mostly clear, with a low around 27. Light west northwest wind increasing to 5 to 9 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 39. Northwest wind 5 to 10 mph becoming light west northwest in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Mostly clear, with a low around 25. Light and variable wind.
Monday
Sunny, with a high near 48. Light south southwest wind becoming southwest 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 35. South southwest wind 5 to 7 mph.
Tuesday
Mostly sunny, with a high near 57. Southwest wind 7 to 13 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 40. West southwest wind 3 to 7 mph.
Wednesday
A slight chance of showers after noon. Partly sunny, with a high near 47. Light west wind becoming north northwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Wednesday Night
Mostly cloudy, with a low around 23. North wind around 7 mph.
Thursday
Mostly sunny, with a high near 37. North northwest wind 5 to 7 mph becoming calm in the afternoon.
Thursday Night
Partly cloudy, with a low around 26. Calm wind becoming south southwest around 5 mph after midnight.
Friday
Partly sunny, with a high near 45. West southwest wind 5 to 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Buncombe IL
 37.49°N 89.05°W
Last Update:
3:16 am CST Jan 10, 2026
Forecast Valid:
4am CST Jan 10, 2026-6pm CST Jan 16, 2026
 
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Additional Resources

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