Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fair
27°F
-3°C
| Humidity | 69% |
| Wind Speed | Calm |
| Barometer | 30.09 in |
| Dewpoint | 18°F (-8°C) |
| Visibility | 10.00 mi |
| Last update | 31 Dec 6:47 am CST |
Extended Forecast for
Marion IL
Today
High: 43 °F
Partly Sunny
Tonight
Low: 27 °F
Mostly Clear
New Year's Day
High: 43 °F
Mostly Sunny
Thursday Night
Low: 30 °F
Mostly Cloudy
Friday
High: 46 °F
Cloudy
Friday Night
Low: 28 °F
Mostly Cloudy
Saturday
High: 42 °F
Mostly Sunny
Saturday Night
Low: 24 °F
Mostly Clear
Sunday
High: 45 °F
Partly Sunny
Detailed Forecast
Today
Partly sunny, with a high near 43. West northwest wind 5 to 8 mph.
Tonight
Mostly clear, with a low around 27. Calm wind.
New Year's Day
Mostly sunny, with a high near 43. Calm wind becoming northeast around 5 mph.
Thursday Night
Mostly cloudy, with a low around 30. Calm wind.
Friday
Cloudy, with a high near 46. Calm wind becoming northeast around 6 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 28. North northeast wind around 6 mph.
Saturday
Mostly sunny, with a high near 42. North wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 24. Calm wind.
Sunday
Partly sunny, with a high near 45. Calm wind becoming south southeast around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 34. South wind 3 to 6 mph.
Monday
Partly sunny, with a high near 56. South southwest wind 6 to 9 mph.
Monday Night
Mostly cloudy, with a low around 39. Southwest wind around 5 mph.
Tuesday
Mostly cloudy, with a high near 55. West wind 5 to 7 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Marion IL
37.73°N 88.95°W
37.73°N 88.95°W
4:32 am CST Dec 31, 2025
7am CST Dec 31, 2025-6pm CST Jan 6, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
