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

64°F

18°C

Humidity 74%
Wind Speed S 8 mph
Barometer 30.14 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 12 Apr 4:35 am CDT
Extended Forecast for

3 Miles NNE Vienna IL

  • Today

    Today: Mostly sunny, with a high near 83. Light south southeast wind becoming south southwest 12 to 17 mph in the morning. Winds could gust as high as 28 mph.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 66. South wind around 11 mph, with gusts as high as 24 mph.

    Low: 66 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. South southwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 82 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68. South southwest wind 9 to 11 mph, with gusts as high as 23 mph.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86. South southwest wind 9 to 15 mph, with gusts as high as 25 mph.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 68. South southwest wind 7 to 10 mph, with gusts as high as 22 mph.

    Low: 68 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 85. South southwest wind 7 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South southwest wind 6 to 8 mph, with gusts as high as 18 mph.

    Low: 65 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South southwest wind 6 to 9 mph, with gusts as high as 18 mph.

    High: 81 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 83. Light south southeast wind becoming south southwest 12 to 17 mph in the morning. Winds could gust as high as 28 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 66. South wind around 11 mph, with gusts as high as 24 mph.
Monday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. South southwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 68. South southwest wind 9 to 11 mph, with gusts as high as 23 mph.
Tuesday
Mostly sunny, with a high near 86. South southwest wind 9 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 68. South southwest wind 7 to 10 mph, with gusts as high as 22 mph.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 85. South southwest wind 7 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South southwest wind 6 to 8 mph, with gusts as high as 18 mph.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South southwest wind 6 to 9 mph, with gusts as high as 18 mph.
Thursday Night
A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 62. Light south southwest wind.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Light south wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Friday Night
A chance of showers. Partly cloudy, with a low around 65. South wind around 6 mph.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. South southwest wind 7 to 11 mph, with gusts as high as 22 mph.
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:
4:36 am CDT Apr 12, 2026
Forecast Valid:
4am CDT Apr 12, 2026-6pm CDT Apr 18, 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