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

73°F

23°C

Humidity 74%
Wind Speed SE 6 mph
Barometer 30.14 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 8 Sep 8:47 am CDT
Extended Forecast for

6 Miles WSW Buncombe IL

  • Today

    Today: Sunny, with a high near 93. Light south wind.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 72. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 97. Heat index values as high as 106. Southwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 71. Light south wind. Chance of precipitation is 70%.

    Low: 71 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 85. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 90%.

    High: 85 °F

    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Calm wind.

    High: 87 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 93. Light south wind.
Tonight
Mostly clear, with a low around 72. Calm wind becoming south 5 to 7 mph after midnight.
Wednesday
A slight chance of showers between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 97. Heat index values as high as 106. Southwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 71. Light south wind. Chance of precipitation is 70%.
Thursday
Showers and possibly a thunderstorm. High near 85. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 90%.
Thursday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 20%.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Calm wind.
Friday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67. Calm wind.
Saturday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph.
Saturday Night
A slight chance of showers before 1am. Partly cloudy, with a low around 68. Calm wind.
Sunday
A slight chance of showers. Mostly sunny, with a high near 89. Calm wind becoming south southwest around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 67. Light southeast wind.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. South wind 3 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Buncombe IL
 37.45°N 89.08°W
Last Update:
6:21 am CDT Sep 8, 2026
Forecast Valid:
9am CDT Sep 8, 2026-6pm CDT Sep 14, 2026
 
Forecast Discussion
 
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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