Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
39°F
4°C
| Humidity | 70% |
| Wind Speed | S 16 G 25 mph |
| Barometer | 30.01 in |
| Dewpoint | 30°F (-1°C) |
| Visibility | NA |
| Wind Chill | 30°F (-1°C) |
| Last update | 9 Dec 10:45 am CST |
Extended Forecast for
Marion IL
Today
High: 46 °F
Mostly Sunny
Tonight
Low: 44 °F
Mostly Cloudy
and BreezyWednesday
High: 48 °F⇓
Mostly Cloudy
and BreezyWednesday Night
Low: 28 °F
Mostly Cloudy
Thursday
High: 42 °F
Mostly Cloudy
Thursday Night
Low: 32 °F
Mostly Cloudy
Friday
High: 47 °F
Partly Sunny
Friday Night
Low: 22 °F
Mostly Cloudy
Saturday
High: 34 °F
Partly Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 46. South southwest wind 13 to 17 mph, with gusts as high as 32 mph.
Tonight
Mostly cloudy, with a steady temperature around 44. Breezy, with a south southwest wind 16 to 21 mph, with gusts as high as 38 mph.
Wednesday
Mostly cloudy, with a temperature rising to near 48 by 9am, then falling to around 37 during the remainder of the day. Breezy, with a west southwest wind 13 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 36 mph.
Wednesday Night
Mostly cloudy, with a low around 28. Northwest wind 5 to 9 mph becoming calm in the evening.
Thursday
Mostly cloudy, with a high near 42. Calm wind becoming west southwest 5 to 7 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 32. Southeast wind around 6 mph.
Friday
Partly sunny, with a high near 47. Southeast wind 6 to 10 mph becoming northwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 22. North northwest wind 6 to 8 mph.
Saturday
Partly sunny, with a high near 34. North northeast wind around 7 mph.
Saturday Night
Mostly cloudy, with a low around 13. North wind around 6 mph.
Sunday
Mostly sunny, with a high near 26. North wind 6 to 8 mph.
Sunday Night
Partly cloudy, with a low around 15. North northeast wind around 5 mph becoming light and variable.
Monday
A slight chance of rain and snow showers. Partly sunny, with a high near 37. East southeast wind 5 to 8 mph becoming south southwest 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
10:31 am CST Dec 9, 2025
11am CST Dec 9, 2025-6pm CST Dec 15, 2025
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