


Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
A Few Clouds
77°F
25°C
Humidity | 89% |
Wind Speed | S 14 mph |
Barometer | 29.89 in |
Dewpoint | 73°F (23°C) |
Visibility | 10.00 mi |
Heat Index | 78°F (26°C) |
Last update | 18 Jun 6:45 am CDT |
Extended Forecast for
2 Miles E Johnston City IL
Lake Wind Advisory June 18, 11:00am until June 18, 07:00pm
Today
High: 88 °F
Chance
T-storms then
Severe
ThunderstormsTonight
Low: 70 °F
Severe
Thunderstorms
then Chance
T-stormsJuneteenth
High: 85 °F
Decreasing
CloudsThursday Night
Low: 67 °F
Mostly Clear
Friday
High: 89 °F
Sunny
Friday Night
Low: 73 °F
Clear
Saturday
High: 92 °F
Sunny
Saturday Night
Low: 76 °F
Mostly Clear
Sunday
High: 93 °F
Sunny
Detailed Forecast
Today
Showers and thunderstorms likely, mainly between 3pm and 4pm. Some of the storms could be severe. Partly sunny, with a high near 88. Southwest wind 10 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Tonight
Showers and thunderstorms before 2am, then a slight chance of showers between 2am and 4am. Some of the storms could be severe. Low around 70. Southwest wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Juneteenth
Mostly cloudy, then gradually becoming sunny, with a high near 85. Northwest wind around 7 mph.
Thursday Night
Mostly clear, with a low around 67. Calm wind.
Friday
Sunny, with a high near 89. Calm wind becoming south southwest around 6 mph in the afternoon.
Friday Night
Clear, with a low around 73. South wind around 6 mph.
Saturday
Sunny, with a high near 92. South wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 76. South wind 6 to 8 mph.
Sunday
Sunny, with a high near 93. South southwest wind 6 to 8 mph.
Sunday Night
Clear, with a low around 75. South wind 3 to 6 mph.
Monday
Sunny, with a high near 93. South wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 75. South wind around 6 mph becoming calm in the evening.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 92. Calm wind becoming south around 6 mph in the afternoon.
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ABOUT THIS FORECAST
Point Forecast:
2 Miles E Johnston City IL
37.82°N 88.89°W
37.82°N 88.89°W
6:01 am CDT Jun 18, 2025
7am CDT Jun 18, 2025-6pm CDT Jun 24, 2025