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

82°F

28°C

Humidity 40%
Wind Speed W 13 mph
Barometer 29.83 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 16 Jun 12:45 pm CDT
Extended Forecast for

3 Miles NNE Vienna IL

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 83. Southwest wind around 9 mph.

    High: 83 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 61. West wind around 5 mph becoming calm in the evening.

    Low: 61 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 89. Breezy, with a light south southeast wind becoming south southwest 15 to 20 mph in the morning. Winds could gust as high as 33 mph.

    High: 89 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Increasing clouds, with a low around 73. South southwest wind 10 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    Low: 73 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. Southwest wind around 7 mph becoming north northwest in the afternoon. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. Light north wind. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 83. Calm wind becoming north around 6 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 85. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 83. Southwest wind around 9 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 61. West wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 89. Breezy, with a light south southeast wind becoming south southwest 15 to 20 mph in the morning. Winds could gust as high as 33 mph.
Wednesday Night
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Increasing clouds, with a low around 73. South southwest wind 10 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Thursday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. Southwest wind around 7 mph becoming north northwest in the afternoon. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. Light north wind. Chance of precipitation is 60%.
Juneteenth
Mostly sunny, with a high near 83. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 61. Calm wind.
Saturday
Sunny, with a high near 85. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66. Calm wind.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Light south southeast wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 23 mph.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. South wind 6 to 8 mph.
Monday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 86. West southwest wind 6 to 9 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:
9:01 am CDT Jun 16, 2026
Forecast Valid:
1pm CDT Jun 16, 2026-6pm CDT Jun 22, 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