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

75°F

24°C

Humidity 36%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 6 Oct 5:47 pm CDT
Extended Forecast for

4 Miles NE Vienna IL

  • Tonight

    Tonight: Clear, with a low around 50. Calm wind.

    Low: 50 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. Calm wind becoming west southwest 5 to 7 mph in the morning.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. Light and variable wind.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 85 °F

    Sunny

  • Thursday Night

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

    Low: 54 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 83. Calm wind becoming east around 5 mph in the morning.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers after 1pm. Mostly sunny, with a high near 84. Calm wind becoming south southeast 5 to 8 mph in the morning.

    High: 84 °F

    Sunny then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 58. East southeast wind around 6 mph.

    Low: 58 °F

    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 50. Calm wind.
Wednesday
Sunny, with a high near 83. Calm wind becoming west southwest 5 to 7 mph in the morning.
Wednesday Night
Mostly clear, with a low around 58. Light and variable wind.
Thursday
Sunny, with a high near 85. Calm wind becoming north northeast around 5 mph in the afternoon.
Thursday Night
Clear, with a low around 54. Calm wind.
Friday
Sunny, with a high near 83. Calm wind becoming east around 5 mph in the morning.
Friday Night
Mostly clear, with a low around 57. Calm wind.
Saturday
A slight chance of showers after 1pm. Mostly sunny, with a high near 84. Calm wind becoming south southeast 5 to 8 mph in the morning.
Saturday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 58. East southeast wind around 6 mph.
Sunday
A chance of showers. Partly sunny, with a high near 75. East wind 6 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 57. Calm wind.
Columbus Day
Mostly sunny, with a high near 80. Calm wind becoming north northwest around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 58. Calm wind.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 82. Calm wind becoming south southwest 5 to 8 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NE Vienna IL
 37.46°N 88.82°W
Last Update:
5:51 pm CDT Oct 6, 2026
Forecast Valid:
6pm CDT Oct 6, 2026-6pm CDT Oct 13, 2026
 
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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