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

79°F

26°C

Humidity 34%
Wind Speed SE 9 mph
Barometer 30.11 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 8 Oct 10:47 am CDT
Extended Forecast for

3 Miles W Vienna IL

  • Today

    Today: Sunny, with a high near 84. East wind 3 to 6 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 55. Calm wind.

    Low: 55 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 86. Calm wind becoming southeast around 5 mph.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: A 50 percent chance of showers after 1pm. Mostly cloudy, with a high near 78. Calm wind becoming east northeast 5 to 9 mph in the morning.

    High: 78 °F

    Partly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then showers after 1am. Low around 59. East northeast wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.

    Low: 59 °F

    Showers

  • Sunday

    Sunday: A 50 percent chance of showers before 1pm. Partly sunny, with a high near 73. East northeast wind 7 to 9 mph becoming west northwest in the afternoon.

    High: 73 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Sunny, with a high near 84. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 84 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 84. East wind 3 to 6 mph.
Tonight
Clear, with a low around 55. Calm wind.
Friday
Sunny, with a high near 86. Calm wind becoming southeast around 5 mph.
Friday Night
Mostly clear, with a low around 60. Calm wind.
Saturday
A 50 percent chance of showers after 1pm. Mostly cloudy, with a high near 78. Calm wind becoming east northeast 5 to 9 mph in the morning.
Saturday Night
Showers before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then showers after 1am. Low around 59. East northeast wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Sunday
A 50 percent chance of showers before 1pm. Partly sunny, with a high near 73. East northeast wind 7 to 9 mph becoming west northwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 57. Calm wind.
Columbus Day
Sunny, with a high near 84. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 61. South southwest wind 3 to 5 mph.
Tuesday
A slight chance of showers. Sunny, with a high near 79. Northwest wind 5 to 9 mph.
Tuesday Night
A slight chance of showers. Mostly clear, with a low around 52. Light north northeast wind.
Wednesday
Sunny, with a high near 75. Light and variable wind becoming northeast around 5 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Vienna IL
 37.4°N 88.97°W
Last Update:
8:56 am CDT Oct 8, 2026
Forecast Valid:
11am CDT Oct 8, 2026-6pm CDT Oct 14, 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