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.

Overcast

80°F

27°C

Humidity 84%
Wind Speed SW 8 mph
Barometer 29.67 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 18 Jun 3:35 am CDT
Extended Forecast for

3 Miles W Buncombe IL

  • Overnight

    Overnight: Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Steady temperature around 76. West southwest wind around 7 mph. Chance of precipitation is 80%.

    Low: 76 °F

    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 9am. Mostly sunny, with a high near 85. Light and variable wind becoming north around 6 mph in the afternoon. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63. North wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 84. Light north wind.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 85. Light and variable wind.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 84. Light south wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 22 mph.

    High: 84 °F

    Showers
    Likely then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Mostly cloudy, with a low around 67. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Showers

Detailed Forecast

Overnight
Showers and possibly a thunderstorm, mainly before 5am, then a chance of showers and thunderstorms after 5am. Steady temperature around 76. West southwest wind around 7 mph. Chance of precipitation is 80%.
Thursday
Showers and thunderstorms likely, mainly before 9am. Mostly sunny, with a high near 85. Light and variable wind becoming north around 6 mph in the afternoon. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 63. North wind around 5 mph becoming calm in the evening.
Juneteenth
Mostly sunny, with a high near 84. Light north wind.
Friday Night
Partly cloudy, with a low around 63. Calm wind.
Saturday
Mostly sunny, with a high near 85. Light and variable wind.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Calm wind.
Sunday
Showers likely and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. Partly sunny, with a high near 84. Light south wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 22 mph.
Sunday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 67. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.
Monday
A chance of showers, mainly before 1pm. Mostly cloudy, with a high near 80. North northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 61. North wind 5 to 8 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 82. Calm wind becoming north northeast around 5 mph.
Tuesday Night
Partly cloudy, with a low around 62. Calm wind.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Calm wind.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Buncombe IL
 37.47°N 89.02°W
Last Update:
2:01 am CDT Jun 18, 2026
Forecast Valid:
3am CDT Jun 18, 2026-6pm CDT Jun 24, 2026
 
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Additional Resources

Radar & Satellite Image

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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