Hazardous Weather Conditions
Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Rain Fog/Mist
73°F
23°C
| Humidity | 100% |
| Wind Speed | SW 5 mph |
| Barometer | 30.01 in |
| Dewpoint | 73°F (23°C) |
| Visibility | 1.50 mi |
| Last update | 14 Oct 8:45 am CDT |
Extended Forecast for
Marion IL
Today
High: 82 °F
Showers
Tonight
Low: 66 °F
Chance
ShowersThursday
High: 87 °F
Chance
ShowersThursday Night
Low: 53 °F
Slight Chance
T-storms then
Chance
ShowersFriday
High: 62 °F
Partly Sunny
and BreezyFriday Night
Low: 40 °F
Partly Cloudy
Saturday
High: 62 °F
Sunny
Saturday Night
Low: 38 °F
Clear
Sunday
High: 69 °F
Sunny
Detailed Forecast
Today
Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. High near 82. South wind 5 to 7 mph becoming west in the morning. Chance of precipitation is 90%.
Tonight
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 40%.
Thursday
A 40 percent chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 87. Light and variable wind becoming south southwest 6 to 11 mph in the morning.
Thursday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Increasing clouds, with a low around 53. South southwest wind 7 to 16 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 62. Breezy, with a north northwest wind 18 to 21 mph, with gusts as high as 31 mph.
Friday Night
Partly cloudy, with a low around 40. North wind 7 to 16 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 62. Northeast wind 5 to 8 mph.
Saturday Night
Clear, with a low around 38. Calm wind.
Sunday
Sunny, with a high near 69. Calm wind becoming south 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 45. Light south southeast wind.
Monday
Mostly sunny, with a high near 70. South wind 3 to 8 mph.
Monday Night
Partly cloudy, with a low around 49. Calm wind.
Tuesday
Mostly sunny, with a high near 76. Calm wind becoming south around 6 mph in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Marion IL
37.73°N 88.92°W
37.73°N 88.92°W
7:30 am CDT Oct 14, 2026
8am CDT Oct 14, 2026-6pm CDT Oct 20, 2026
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