Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Partly Cloudy
82°F
28°C
| Humidity | 67% |
| Wind Speed | SW 5 mph |
| Barometer | 29.97 in |
| Dewpoint | 70°F (21°C) |
| Visibility | 10.00 mi |
| Heat Index | 86°F (30°C) |
| Last update | 25 Jun 7:35 pm CDT |
Extended Forecast for
4 Miles SSW Marion IL
Flood Watch until June 27, 07:00am
NOW until 7:00am Sat
Flood Watch
Tonight
Low: 71 °F
Chance
T-storms then
ShowersFriday

High: 86 °F
Showers
LikelyFriday Night

Low: 72 °F
Showers
Saturday
High: 88 °F
Chance
Showers then
Chance
T-stormsSaturday Night

Low: 73 °F
Chance
T-stormsSunday

High: 93 °F
Sunny
Sunday Night

Low: 75 °F
Mostly Clear
Monday

High: 97 °F
Hot
Detailed Forecast
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 71. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Friday
Showers and thunderstorms likely, mainly before 9am, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. South southwest wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 5am, then a chance of showers and thunderstorms after 5am. Low around 72. Southwest wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%.
Saturday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 88. West southwest wind 3 to 6 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73. Light south wind.
Sunday
Sunny, with a high near 93. South southwest wind 5 to 9 mph.
Sunday Night
Mostly clear, with a low around 75. South southwest wind 5 to 7 mph becoming calm after midnight.
Monday
Sunny and hot, with a high near 97. Calm wind becoming south southwest 5 to 7 mph in the morning.
Monday Night
Clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Tuesday
Sunny and hot, with a high near 98. Calm wind becoming south southwest around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 77. Light and variable wind.
Wednesday
Sunny and hot, with a high near 99. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 78. Calm wind.
Thursday
Sunny and hot, with a high near 98. Light and variable wind.
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ABOUT THIS FORECAST
Point Forecast:
4 Miles SSW Marion IL
37.67°N 88.98°W
37.67°N 88.98°W
6:36 pm CDT Jun 25, 2026
7pm CDT Jun 25, 2026-6pm CDT Jul 2, 2026



