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Hazardous Weather Conditions

Current conditions at

Marion - Williamson County Regional Airport (KMWA)

Lat: 37.77°NLon: 89.01°WElev: 486ft.

Overcast

81°F

27°C

Humidity 84%
Wind Speed S 16 mph
Barometer 29.88 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 18 Jun 8:45 am CDT
Extended Forecast for

Vienna IL

Lake Wind Advisory June 18, 11:00am until June 18, 07:00pm
Click here for hazard details and duration
Lake Wind Advisory

  • Today

    Today: Showers and thunderstorms likely, mainly after 3pm. Some of the storms could be severe. Partly sunny, with a high near 89. Southwest wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.

    High: 89 °F

    Slight Chance
    T-storms then
    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 1am. Some of the storms could be severe. Low around 70. Southwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

    Low: 70 °F

    Severe
    Thunderstorms

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 86. Northwest wind around 6 mph.

    High: 86 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90. Calm wind becoming south around 6 mph in the afternoon.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. Light south wind.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 92. Light south wind becoming south southwest 5 to 9 mph in the morning.

    High: 92 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. South wind 3 to 6 mph.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 94. South southwest wind 3 to 6 mph.

    High: 94 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 3pm. Some of the storms could be severe. Partly sunny, with a high near 89. Southwest wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.
Tonight
Showers and thunderstorms, mainly before 1am. Some of the storms could be severe. Low around 70. Southwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Juneteenth
Mostly sunny, with a high near 86. Northwest wind around 6 mph.
Thursday Night
Mostly clear, with a low around 67. Calm wind.
Friday
Sunny, with a high near 90. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 72. Light south wind.
Saturday
Sunny, with a high near 92. Light south wind becoming south southwest 5 to 9 mph in the morning.
Saturday Night
Mostly clear, with a low around 75. South wind 3 to 6 mph.
Sunday
Sunny, with a high near 94. South southwest wind 3 to 6 mph.
Sunday Night
Clear, with a low around 75. Light south wind.
Monday
Sunny, with a high near 94. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 74. Calm wind.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 93. Light south wind.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Vienna IL
 37.42°N 88.91°W
Last Update:
7:31 am CDT Jun 18, 2025
Forecast Valid:
9am CDT Jun 18, 2025-6pm CDT Jun 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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