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.

Mostly Cloudy

54°F

12°C

Humidity 38%
Wind Speed SE 6 mph
Barometer 30.02 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 17 Nov 5:45 pm CST
Extended Forecast for

Vienna IL

  • Tonight

    Tonight: A slight chance of showers, then a chance of showers and thunderstorms after midnight. Increasing clouds, with a steady temperature around 54. Southeast wind 6 to 8 mph. Chance of precipitation is 50%.

    Low: 54 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly before noon. Mostly cloudy, with a high near 72. South southwest wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    High: 72 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 51. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 67. Light northwest wind.

    High: 67 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Mostly cloudy, with a low around 50. Calm wind. Chance of precipitation is 40%.

    Low: 50 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers, with thunderstorms also possible after noon. High near 66. Calm wind becoming south southeast around 6 mph in the morning. Chance of precipitation is 90%.

    High: 66 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 57. South southwest wind 3 to 6 mph. Chance of precipitation is 90%.

    Low: 57 °F

    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 69. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 69 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 47. South wind around 6 mph becoming north northwest in the evening.

    Low: 47 °F

    Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers, then a chance of showers and thunderstorms after midnight. Increasing clouds, with a steady temperature around 54. Southeast wind 6 to 8 mph. Chance of precipitation is 50%.
Tuesday
Showers and thunderstorms likely, mainly before noon. Mostly cloudy, with a high near 72. South southwest wind 6 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Tuesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 51. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 67. Light northwest wind.
Wednesday Night
A chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Mostly cloudy, with a low around 50. Calm wind. Chance of precipitation is 40%.
Thursday
Showers, with thunderstorms also possible after noon. High near 66. Calm wind becoming south southeast around 6 mph in the morning. Chance of precipitation is 90%.
Thursday Night
Showers and possibly a thunderstorm. Low around 57. South southwest wind 3 to 6 mph. Chance of precipitation is 90%.
Friday
Showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 69. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Friday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 47. South wind around 6 mph becoming north northwest in the evening.
Saturday
Mostly sunny, with a high near 60. Northwest wind 3 to 7 mph.
Saturday Night
Partly cloudy, with a low around 41. Calm wind.
Sunday
Mostly sunny, with a high near 61. Light and variable wind.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 42. Calm wind.
Monday
A slight chance of showers. Partly sunny, with a high near 61. Calm wind becoming south southwest around 6 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Vienna IL
 37.42°N 88.88°W
Last Update:
3:16 pm CST Nov 17, 2025
Forecast Valid:
6pm CST Nov 17, 2025-6pm CST Nov 24, 2025
 
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