National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Fair

61°F

16°C

Humidity 77%
Wind Speed Calm
Barometer 29.92 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 12 Oct 8:55 pm CDT
Extended Forecast for

3 Miles W Vienna IL

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Clear then
    Patchy Fog

  • Columbus Day

    Columbus Day: Patchy fog before 9am. Otherwise, sunny, with a high near 80. Calm wind.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. Calm wind.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. Light east northeast wind.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 56. Calm wind.

    Low: 56 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 54. Calm wind.

    Low: 54 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Calm wind becoming east around 6 mph in the morning.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. Light east wind.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, mostly clear, with a low around 52. Calm wind.
Columbus Day
Patchy fog before 9am. Otherwise, sunny, with a high near 80. Calm wind.
Monday Night
Mostly clear, with a low around 54. Calm wind.
Tuesday
Sunny, with a high near 82. Light east northeast wind.
Tuesday Night
Clear, with a low around 56. Calm wind.
Wednesday
Sunny, with a high near 80. Calm wind becoming north northeast around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 54. Calm wind.
Thursday
Sunny, with a high near 77. Calm wind becoming east around 6 mph in the morning.
Thursday Night
Mostly clear, with a low around 51. Light east wind.
Friday
Mostly sunny, with a high near 82. Calm wind becoming south around 6 mph in the morning.
Friday Night
Partly cloudy, with a low around 62. South southeast wind 3 to 5 mph.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 54. South southwest wind around 6 mph.
Sunday
A chance of showers. Mostly sunny, with a high near 73. West northwest wind 6 to 9 mph.
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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:
8:32 pm CDT Oct 12, 2025
Forecast Valid:
9pm CDT Oct 12, 2025-6pm CDT Oct 19, 2025
 
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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