Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Partly Cloudy
51°F
11°C
| Humidity | 48% |
| Wind Speed | N 3 mph |
| Barometer | 30.27 in |
| Dewpoint | 32°F (0°C) |
| Visibility | 10.00 mi |
| Last update | 6 Apr 9:15 pm CDT |
Extended Forecast for
Marion IL
Tonight
Low: 41 °F
Mostly Clear
Tuesday
High: 60 °F
Mostly Sunny
Tuesday Night
Low: 40 °F
Partly Cloudy
Wednesday
High: 74 °F
Mostly Sunny
Wednesday Night
Low: 53 °F
Partly Cloudy
Thursday
High: 75 °F
Sunny
Thursday Night
Low: 55 °F
Mostly Clear
Friday
High: 78 °F
Slight Chance
Showers then
Slight Chance
T-stormsFriday Night
Low: 59 °F
Slight Chance
T-storms
Detailed Forecast
Tonight
Mostly clear, with a low around 41. North northeast wind around 6 mph.
Tuesday
Mostly sunny, with a high near 60. East northeast wind 8 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 40. East wind around 6 mph.
Wednesday
Mostly sunny, with a high near 74. East southeast wind 5 to 10 mph becoming south in the afternoon.
Wednesday Night
Partly cloudy, with a low around 53. South southeast wind around 8 mph.
Thursday
Sunny, with a high near 75. South wind 8 to 10 mph, with gusts as high as 18 mph.
Thursday Night
Mostly clear, with a low around 55. South wind around 6 mph.
Friday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 78. Southwest wind 5 to 9 mph.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 59. South southwest wind around 5 mph becoming light and variable in the evening.
Saturday
A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Light and variable wind becoming south southeast around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 61. Southeast wind around 6 mph.
Sunday
Partly sunny, with a high near 84. South southwest wind 7 to 15 mph, with gusts as high as 23 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. South wind 11 to 13 mph, with gusts as high as 23 mph.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. South southwest wind 14 to 17 mph, with gusts as high as 29 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Marion IL
37.73°N 88.95°W
37.73°N 88.95°W
9:16 pm CDT Apr 6, 2026
9pm CDT Apr 6, 2026-6pm CDT Apr 13, 2026
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