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.

Mostly Cloudy

75°F

24°C

Humidity 89%
Wind Speed W 12 mph
Barometer 29.85 in
Dewpoint 72°F (22°C)
Visibility 7.00 mi
Last update 18 Jun 1:45 pm CDT
Extended Forecast for

2 Miles NNW Tunnel Hill IL

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

    NOW until 7:00pm Wed

    Lake Wind Advisory

  • This Afternoon

    High: 86 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms before 4am. Some of the storms could be severe. Mostly cloudy, with a low around 70. West southwest wind 6 to 11 mph, with gusts as high as 21 mph.

    Low: 70 °F

    Severe
    Thunderstorms

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 84. Northwest wind around 6 mph.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 67 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 88. Calm wind becoming south around 6 mph in the afternoon.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 72. South wind 3 to 5 mph.

    Low: 72 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 90. South wind 6 to 9 mph.

    High: 90 °F

    Sunny

  • Saturday Night

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

    Low: 75 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly between 2pm and 4pm. Some of the storms could be severe. Partly sunny, with a high near 86. Southwest wind 15 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.
Tonight
A 40 percent chance of showers and thunderstorms before 4am. Some of the storms could be severe. Mostly cloudy, with a low around 70. West southwest wind 6 to 11 mph, with gusts as high as 21 mph.
Juneteenth
Mostly sunny, with a high near 84. Northwest wind around 6 mph.
Thursday Night
Clear, with a low around 67. Calm wind.
Friday
Sunny, with a high near 88. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
Clear, with a low around 72. South wind 3 to 5 mph.
Saturday
Sunny, with a high near 90. South wind 6 to 9 mph.
Saturday Night
Mostly clear, with a low around 75. South wind around 6 mph.
Sunday
Sunny, with a high near 92. South southwest wind 5 to 7 mph.
Sunday Night
Clear, with a low around 75. South wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 92. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 74. Light south wind.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Tunnel Hill IL
 37.6°N 88.9°W
Last Update:
1:46 pm CDT Jun 18, 2025
Forecast Valid:
1pm CDT Jun 18, 2025-6pm CDT Jun 24, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation