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

64°F

18°C

Humidity 88%
Wind Speed N 6 mph
Barometer 30.02 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 19 Jun 6:45 am CDT
Extended Forecast for

3 Miles NNE Vienna IL

  • Juneteenth

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

    High: 84 °F

    Mostly Sunny

  • Tonight

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

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 86. Calm wind becoming south southwest around 5 mph.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 86. Light south southeast wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 80%.

    High: 86 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 70. Southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.

    Low: 70 °F

    T-storms then
    Showers

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. West southwest wind around 9 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63. North wind around 6 mph becoming calm in the evening.

    Low: 63 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. Light north northeast wind.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Juneteenth
Mostly sunny, with a high near 84. Light north wind.
Tonight
Partly cloudy, with a low around 63. Calm wind.
Saturday
Sunny, with a high near 86. Calm wind becoming south southwest around 5 mph.
Saturday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 67. Calm wind.
Sunday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 86. Light south southeast wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 24 mph. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm. Low around 70. Southwest wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Monday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. West southwest wind around 9 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 60%.
Monday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 63. North wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 81. Light north northeast wind.
Tuesday Night
Mostly clear, with a low around 63. Calm wind.
Wednesday
Sunny, with a high near 83. Calm wind becoming northwest around 5 mph.
Wednesday Night
Mostly clear, with a low around 64. Calm wind.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Calm wind becoming south around 5 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Vienna IL
 37.44°N 88.88°W
Last Update:
1:26 am CDT Jun 19, 2026
Forecast Valid:
7am CDT Jun 19, 2026-6pm CDT Jun 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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