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

81°F

27°C

Humidity 70%
Wind Speed Calm
Barometer 30.11 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 5 Aug 9:45 am CDT
Extended Forecast for

Buncombe IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 90. Light south southwest wind.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly between noon and 1pm. Mostly cloudy, with a high near 87. Calm wind becoming south southeast 5 to 7 mph in the afternoon.

    High: 87 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 60%.

    High: 89 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 60%.

    Low: 71 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 90 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 91. Calm wind becoming south southwest 5 to 8 mph in the morning.

    High: 91 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 90. Light south southwest wind.
Tonight
Partly cloudy, with a low around 70. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms, mainly between noon and 1pm. Mostly cloudy, with a high near 87. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
Thursday Night
A 30 percent chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 71. Calm wind.
Friday
A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 70. Calm wind.
Sunday
Sunny, with a high near 91. Calm wind becoming south southwest 5 to 8 mph in the morning.
Sunday Night
Mostly clear, with a low around 73. Light south wind.
Monday
Sunny, with a high near 92. South southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 74. South wind 5 to 7 mph.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Southwest wind 5 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Buncombe IL
 37.47°N 88.99°W
Last Update:
11:20 am CDT Aug 5, 2026
Forecast Valid:
12pm CDT Aug 5, 2026-6pm CDT Aug 11, 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