Current conditions at
Marion - Williamson County Regional Airport (KMWA)
Lat: 37.77°NLon: 89.01°WElev: 486ft.
Fog/Mist
37°F
3°C
| Humidity | 93% |
| Wind Speed | SW 6 mph |
| Barometer | 30.00 in |
| Dewpoint | 36°F (2°C) |
| Visibility | 5.00 mi |
| Wind Chill | 32°F (0°C) |
| Last update | 7 Dec 7:45 am CST |
Extended Forecast for
Marion IL
Today
High: 46 °F
Slight Chance
DrizzleTonight
Low: 27 °F
Cloudy
Monday
High: 38 °F
Gradual
ClearingMonday Night
Low: 26 °F
Mostly Clear
Tuesday
High: 49 °F
Mostly Sunny
Tuesday Night
Low: 42 °F
Mostly Cloudy
Wednesday
High: 52 °F
Partly Sunny
Wednesday Night
Low: 30 °F
Slight Chance
Rain then
Slight Chance
Rain/SnowThursday
High: 40 °F
Chance
Rain/Snow
then Chance
Rain
Detailed Forecast
Today
A slight chance of drizzle. Mostly cloudy, with a high near 46. South southwest wind 5 to 10 mph becoming north in the afternoon.
Tonight
Cloudy, with a low around 27. North wind 7 to 10 mph.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 38. North wind 5 to 7 mph becoming calm in the afternoon.
Monday Night
Mostly clear, with a low around 26. Calm wind becoming south southwest 5 to 9 mph after midnight. Winds could gust as high as 18 mph.
Tuesday
Mostly sunny, with a high near 49. South southwest wind 10 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly cloudy, with a low around 42. South southwest wind 14 to 16 mph, with gusts as high as 26 mph.
Wednesday
Partly sunny, with a high near 52. Southwest wind 8 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph.
Wednesday Night
A slight chance of rain before midnight, then a slight chance of rain and snow. Mostly cloudy, with a low around 30. Northwest wind around 6 mph becoming calm.
Thursday
A chance of rain and snow before noon, then a chance of rain. Mostly cloudy, with a high near 40. East wind 5 to 8 mph becoming north in the afternoon.
Thursday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 21. North northwest wind 6 to 9 mph.
Friday
Partly sunny, with a high near 30. Northwest wind 9 to 11 mph, with gusts as high as 18 mph.
Friday Night
Partly cloudy, with a low around 9. Northwest wind 7 to 9 mph.
Saturday
Mostly sunny, with a high near 24. West northwest wind 6 to 9 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
7:21 am CST Dec 7, 2025
8am CST Dec 7, 2025-6pm CST Dec 13, 2025
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