Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
44°F
7°C
| Humidity | 61% |
| Wind Speed | E 7 mph |
| Barometer | 30.28 in |
| Dewpoint | 32°F (0°C) |
| Visibility | 10.00 mi |
| Wind Chill | 40°F (4°C) |
| Last update | 8 Apr 4:15 am CDT |
Extended Forecast for
Marion IL
Today
High: 75 °F
Mostly Sunny
Tonight
Low: 54 °F
Decreasing
CloudsThursday
High: 78 °F
Sunny
Thursday Night
Low: 56 °F
Mostly Clear
Friday
High: 79 °F
Mostly Sunny
then Chance
T-stormsFriday Night
Low: 58 °F
Chance
T-stormsSaturday
High: 78 °F
Partly Sunny
then Slight
Chance
T-stormsSaturday Night
Low: 60 °F
Partly Cloudy
Sunday
High: 83 °F
Partly Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 75. East southeast wind 5 to 10 mph becoming south in the afternoon.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 54. South wind around 7 mph.
Thursday
Sunny, with a high near 78. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Thursday Night
Mostly clear, with a low around 56. South wind around 6 mph.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79. South southwest wind 6 to 10 mph.
Friday Night
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 58. North northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. Light and variable wind becoming east southeast around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 60. South southeast wind around 5 mph.
Sunday
Partly sunny, with a high near 83. South wind 6 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A chance of showers after 1am. Mostly cloudy, with a low around 67. South wind 11 to 14 mph, with gusts as high as 24 mph.
Monday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 31 mph.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 81. South southwest wind 14 to 16 mph, with gusts as high as 26 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Marion IL
37.73°N 88.92°W
37.73°N 88.92°W
2:21 am CDT Apr 8, 2026
4am CDT Apr 8, 2026-6pm CDT Apr 14, 2026
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