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Rileyville, Illinois Weather Forecast
Rileyville, Illinois Weather
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Weather Forecast for Rileyville, Illinois : Williamson County
Issued: 1:01 am CST Dec 21, 2025 Latitude: 37.8506041 Longitude: -88.6728353 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Christmas Day Friday Saturday
Mostly Cloudy on Overnight Mostly Sunny on Sunday 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
Low: 30°F High: 44°F High: 53°F High: 63°F High: 66°F High: 70°F High: 63°F High: 59°F
Low: 30°F Low: 48°F Low: 48°F Low: 58°F Low: 54°F Low: 43°F  
Mostly Cloudy Mostly Sunny Rain Partly Sunny Cloudy Mostly Cloudy Partly Sunny Mostly Cloudy
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Current Conditions at
HARRISBURG-RALEIGH - (KHSB)
36°
Clear
as of 12:55 AM CST
Rel. Humidity: 59%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
5 MPH
350° North
Cloud Level(s): Clear
Current Conditions at
MARION - (KMWA)
36°
Clear
as of 12:55 AM CST
Rel. Humidity: 64%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
5 MPH
0° North
Cloud Level(s): Clear
Current Conditions at
CARBONDALE - (KMDH)
36°
Clear
as of 12:52 AM CST
Rel. Humidity: 64%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.28 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MT VERNON - (KMVN)
34°
Clear
as of 12:56 AM CST
Rel. Humidity: 59%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.29 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Mostly Cloudy on Overnight Overnight... Mostly cloudy, with a low around 30. North wind 3 to 6 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 44. East northeast wind 3 to 8 mph.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 30. East southeast wind 3 to 6 mph.

20% chance of rain Monday Monday... A 20 percent chance of rain after noon. Increasing clouds, with a high near 53. East southeast wind 5 to 10 mph becoming south in the afternoon.

40% chance of rain Monday Night Monday Night... A 40 percent chance of rain before midnight. Cloudy, with a low around 48. Southwest wind 6 to 8 mph.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 63. 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 48. Light and variable wind.

Cloudy on Wednesday Wednesday... Cloudy, with a high near 66. Light and variable wind becoming south 6 to 11 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 20 mph.

Mostly Cloudy on Christmas Day Christmas Day... Mostly cloudy, with a high near 70. South southwest wind 9 to 15 mph, with gusts as high as 22 mph.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 54. Southwest wind 9 to 14 mph, with gusts as high as 20 mph.

Partly Sunny on Friday Friday... Partly sunny, with a high near 63. West wind 7 to 9 mph becoming north in the afternoon.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 43. North northeast wind around 6 mph becoming south southeast 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 Rileyville, Illinois
Sunrise: 07:07 AM
Sunset: 4:39 PM
Civil Sunrise:06:37 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 06:04 AM
Nautical Sunset: 5:42 PM
Astro Sunrise: 05:32 AM
Astro Sunset: 6:14 PM
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