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Marion, Illinois Weather Forecast
Marion, Illinois Weather
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Weather Forecast for Marion, Illinois : Williamson County
Issued: 5:11 am CST Dec 21, 2025 Latitude: 37.7306054 Longitude: -88.9331256 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Christmas Day Friday Saturday
Mostly Sunny on Today Cloudy on Tonight 20% chance of rain on Monday Partly Sunny on Tuesday Cloudy on Wednesday Mostly Cloudy on Christmas Day Partly Sunny on Friday Mostly Cloudy on Saturday
High: 45°F Low: 31°F High: 53°F High: 64°F High: 67°F High: 70°F High: 64°F High: 59°F
Low: 49°F Low: 50°F Low: 58°F Low: 55°F Low: 44°F  
Mostly Sunny Cloudy Rain Partly Sunny Cloudy Mostly Cloudy Partly Sunny Mostly Cloudy
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Current Conditions at
MARION - (KMWA)
28°
Clear
as of 5:55 AM CST
Rel. Humidity: 74%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.40 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
CARBONDALE - (KMDH)
28°
Clear
as of 5:52 AM CST
Rel. Humidity: 86%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.38 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
HARRISBURG-RALEIGH - (KHSB)
32°
Clear
as of 5:55 AM CST
Rel. Humidity: 59%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.40 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
METROPOLIS MUNI ARP - (KM30)
34°
Clear
as of 5:55 AM CST
Rel. Humidity: 55%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.38 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Mostly Sunny on Today Today... Mostly sunny, with a high near 45. East northeast wind 3 to 8 mph.

Cloudy on Tonight Tonight... Partly cloudy, with a low around 31. Calm wind becoming southeast around 6 mph after midnight.

20% chance of rain Monday Monday... A 20 percent chance of rain after noon. Increasing clouds, with a high near 53. South wind 5 to 10 mph.

40% chance of rain Monday Night Monday Night... A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 49. Southwest wind 6 to 8 mph.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 64. West southwest wind 5 to 8 mph becoming light and variable in the afternoon.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 50. Light and variable wind.

Cloudy on Wednesday Wednesday... Cloudy, with a high near 67. Light southeast wind becoming south 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 58. Southwest wind around 10 mph, with gusts as high as 18 mph.

Mostly Cloudy on Christmas Day Christmas Day... Mostly cloudy, with a high near 70. South southwest wind 9 to 14 mph, with gusts as high as 22 mph.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 55. Southwest wind 7 to 14 mph, with gusts as high as 20 mph.

Partly Sunny on Friday Friday... Partly sunny, with a high near 64. West wind 7 to 9 mph becoming north northeast in the afternoon.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 44. North northeast wind around 6 mph becoming south after midnight.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 59. South southwest wind 5 to 8 mph.

Current Radar Image


Sun Almanac for Marion, Illinois
Sunrise: 07:08 AM
Sunset: 4:41 PM
Civil Sunrise:06:38 AM
Civil Sunset: 5:10 PM
Nautical Sunrise: 06:05 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:33 AM
Astro Sunset: 6:15 PM
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