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

63°F

17°C

Humidity 77%
Wind Speed NE 3 mph
Barometer 29.95 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 11 Oct 2:15 am CDT
Extended Forecast for

Vienna IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 56. Light north wind.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 84. Northwest wind 3 to 6 mph.

    High: 84 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 89. Light south southwest wind becoming southwest 5 to 10 mph in the morning.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 63. South southwest wind 3 to 5 mph.

    Low: 63 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. Southwest wind 5 to 10 mph.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67. Light south southwest wind.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Calm wind becoming west southwest around 6 mph in the morning.

    High: 87 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Light and variable wind.

    Low: 65 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 56. Light north wind.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 84. Northwest wind 3 to 6 mph.
Sunday Night
Mostly clear, with a low around 58. Calm wind.
Columbus Day
Sunny, with a high near 89. Light south southwest wind becoming southwest 5 to 10 mph in the morning.
Monday Night
Clear, with a low around 63. South southwest wind 3 to 5 mph.
Tuesday
Sunny, with a high near 91. Southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 67. Light south southwest wind.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Calm wind becoming west southwest around 6 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Light and variable wind.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. East wind 5 to 9 mph becoming south southwest in the afternoon.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Southwest wind 5 to 7 mph.
Friday
A slight chance of showers. Partly sunny, with a high near 72. North northwest wind 9 to 15 mph, with gusts as high as 24 mph.
Friday Night
Partly cloudy, with a low around 43. North northwest wind 8 to 14 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 62. North wind 9 to 11 mph, with gusts as high as 20 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Vienna IL
 37.42°N 88.88°W
Last Update:
1:21 am CDT Oct 11, 2026
Forecast Valid:
2am CDT Oct 11, 2026-6pm CDT Oct 17, 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