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Denny, Illinois Weather Forecast
Denny, Illinois Weather
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Weather Forecast for Denny, Illinois : Perry County
Issued: 8:07 am CST Dec 29, 2025 Latitude: 38.0475507 Longitude: -89.3270302 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Tuesday Wednesday New Year's Day Friday Saturday Sunday
Mostly Sunny on Today Cloudy on Tonight Sunny on Tuesday Mostly Sunny on Wednesday Mostly Sunny on New Year's Day Mostly Cloudy on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday
High: 29°F Low: 17°F High: 36°F High: 44°F High: 39°F High: 41°F High: 42°F High: 44°F
Low: 27°F Low: 25°F Low: 24°F Low: 27°F Low: 24°F  
Mostly Sunny Cloudy Sunny Mostly Sunny Mostly Sunny Mostly Cloudy Mostly Sunny Mostly Sunny
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Current Conditions at
CARBONDALE - (KMDH)
19°
Feels like 6°F
Mostly Cloudy
as of 9:52 AM CST
Rel. Humidity: 57%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.33 in.
Flight Rule: VFR
Wind Data
14 MPH
Gust: 28 MPH
280° West
Cloud Level(s): Broken at 3600ft
Current Conditions at
SPARTA - (KSAR)
21°
Feels like 7°F
Partly Cloudy
as of 10:15 AM CST
Rel. Humidity: 53%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.34 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 25 MPH
280° West
Cloud Level(s): Scattered at 3300ft
Current Conditions at
MARION - (KMWA)
21°
Feels like 6°F
Mostly Cloudy
as of 9:45 AM CST
Rel. Humidity: 57%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.32 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 26 MPH
310° Northwest
Cloud Level(s): Broken at 3500ft
Current Conditions at
CAIRO - (KCIR)
25°
Feels like 11°F
Clear
as of 10:15 AM CST
Rel. Humidity: 58%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.36 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 25 MPH
310° Northwest
Cloud Level(s): Clear
Mostly Sunny on Today Today... Mostly sunny, with a high near 29. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 17. Northwest wind 8 to 15 mph, with gusts as high as 23 mph.
Sunny on Tuesday Tuesday... Sunny, with a high near 36. West northwest wind 5 to 8 mph becoming southwest in the afternoon.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 27. Southwest wind around 6 mph.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 44. West northwest wind 5 to 10 mph.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 25. West northwest wind 3 to 5 mph.
Mostly Sunny on New Year's Day New Year's Day... Mostly sunny, with a high near 39. North wind 3 to 7 mph.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 24. Calm wind.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 41. Calm wind becoming east around 6 mph in the morning.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 27. Light north wind.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 42. North wind 3 to 6 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 24. Calm wind becoming south southeast around 5 mph after midnight.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 44. South wind 5 to 7 mph.
Current Radar Image


Sun Almanac for Denny, Illinois
Sunrise: 07:13 AM
Sunset: 4:46 PM
Civil Sunrise:06:44 AM
Civil Sunset: 5:16 PM
Nautical Sunrise: 06:11 AM
Nautical Sunset: 5:49 PM
Astro Sunrise: 05:38 AM
Astro Sunset: 6:21 PM
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