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

59°F

15°C

Humidity 88%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 10 Oct 8:45 am CDT
Extended Forecast for

Vienna IL

  • Today

    Today: A 30 percent chance of showers, mainly after 4pm. Cloudy, with a high near 73. Calm wind becoming east northeast 5 to 8 mph in the afternoon.

    High: 73 °F

    Cloudy then
    Chance
    Showers

  • Tonight

    Tonight: Showers likely before 1am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 55. Northeast wind 6 to 11 mph becoming light north northeast. Winds could gust as high as 22 mph. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 82. North northwest wind 3 to 6 mph.

    High: 82 °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 88. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 88 °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 89. West southwest wind 3 to 8 mph.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 64. Light south southwest wind.

    Low: 64 °F

    Clear then
    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 83. East southeast wind 3 to 7 mph.

    High: 83 °F

    Chance
    Showers

Detailed Forecast

Today
A 30 percent chance of showers, mainly after 4pm. Cloudy, with a high near 73. Calm wind becoming east northeast 5 to 8 mph in the afternoon.
Tonight
Showers likely before 1am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 55. Northeast wind 6 to 11 mph becoming light north northeast. Winds could gust as high as 22 mph. Chance of precipitation is 60%.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 82. North northwest wind 3 to 6 mph.
Sunday Night
Mostly clear, with a low around 58. Calm wind.
Columbus Day
Sunny, with a high near 88. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Clear, with a low around 63. South southwest wind 3 to 5 mph.
Tuesday
Sunny, with a high near 89. West southwest wind 3 to 8 mph.
Tuesday Night
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 64. Light south southwest wind.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83. East southeast wind 3 to 7 mph.
Wednesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 61. Southeast wind 3 to 5 mph.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81. South southwest wind 5 to 9 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 56. West southwest wind 3 to 5 mph.
Friday
A slight chance of showers. Partly sunny, with a high near 73. Northwest wind 6 to 11 mph, with gusts as high as 20 mph.
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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:
8:01 am CDT Oct 10, 2026
Forecast Valid:
9am CDT Oct 10, 2026-6pm CDT Oct 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation