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

65°F

18°C

Humidity 84%
Wind Speed S 16 mph
Barometer 29.88 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 9 Mar 8:35 pm CDT
Extended Forecast for

3 Miles NNE Vienna IL

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between midnight and 1am. Mostly cloudy, with a low around 63. South southwest wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 63 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers after 4pm. Mostly cloudy, with a high near 78. South southwest wind 6 to 13 mph, with gusts as high as 24 mph.

    High: 78 °F

    Cloudy then
    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 66. South southwest wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

    Low: 66 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 72. South southwest wind 13 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%.

    High: 72 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 35. North wind 8 to 13 mph, with gusts as high as 25 mph.

    Low: 35 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 55. North wind around 6 mph.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41. Calm wind becoming south southwest 5 to 9 mph in the evening. Winds could gust as high as 21 mph.

    Low: 41 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 65. South southwest wind 9 to 11 mph, with gusts as high as 22 mph.

    High: 65 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 43. Light and variable wind.

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between midnight and 1am. Mostly cloudy, with a low around 63. South southwest wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of showers after 4pm. Mostly cloudy, with a high near 78. South southwest wind 6 to 13 mph, with gusts as high as 24 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 66. South southwest wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Wednesday
Showers and possibly a thunderstorm. High near 72. South southwest wind 13 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 100%.
Wednesday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 35. North wind 8 to 13 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 55. North wind around 6 mph.
Thursday Night
Partly cloudy, with a low around 41. Calm wind becoming south southwest 5 to 9 mph in the evening. Winds could gust as high as 21 mph.
Friday
Partly sunny, with a high near 65. South southwest wind 9 to 11 mph, with gusts as high as 22 mph.
Friday Night
Mostly cloudy, with a low around 43. Light and variable wind.
Saturday
Sunny, with a high near 71. Light and variable wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 55. South wind 7 to 9 mph, with gusts as high as 21 mph.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 69. South southwest wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 29 mph.
Sunday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 33. North northwest wind around 11 mph, with gusts as high as 23 mph.
Monday
Mostly sunny, with a high near 46. North northwest wind around 10 mph, with gusts as high as 18 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Vienna IL
 37.44°N 88.88°W
Last Update:
7:51 pm CDT Mar 9, 2026
Forecast Valid:
8pm CDT Mar 9, 2026-6pm CDT Mar 16, 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