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Denny, Illinois Weather Forecast
Denny, Illinois Weather
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Weather Forecast for Denny, Illinois : Perry County
Issued: 3:41 am CST Nov 22, 2025 Latitude: 38.0475507 Longitude: -89.3270302 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday Thanksgiving Day Friday
Mostly Sunny on Today Mostly Clear on Tonight Sunny on Sunday 60% chance of rain on Monday 20% chance of  on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thanksgiving Day Mostly Sunny on Friday
High: 57°F Low: 40°F High: 60°F High: 58°F High: 65°F High: 49°F High: 47°F High: 46°F
Low: 41°F Low: 50°F Low: 37°F Low: 28°F Low: 28°F  
Mostly Sunny Mostly Clear Sunny Rain Partly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
CARBONDALE - (KMDH)
52°
Cloudy
Mist
as of 7:52 AM CST
Rel. Humidity: 93%
Dew Point: 50°F
Visibility: 6 Miles
Pressure: 30.07 in.
Flight Rule: IFR
Wind Data
7 MPH
0° North
Cloud Level(s): Solid Overcast at 700ft
Current Conditions at
SPARTA - (KSAR)
48°
Cloudy
Mist
as of 7:55 AM CST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 4 Miles
Pressure: 30.10 in.
Flight Rule: IFR
Wind Data
3 MPH
0° North
Cloud Level(s): Solid Overcast at 800ft
Current Conditions at
MARION - (KMWA)
52°
Cloudy
Mist
as of 7:45 AM CST
Rel. Humidity: 93%
Dew Point: 50°F
Visibility: 5 Miles
Pressure: 30.07 in.
Flight Rule: IFR
Wind Data
8 MPH
020° North
Cloud Level(s): Broken at 500ft, Solid Overcast at 1800ft
Current Conditions at
CAIRO - (KCIR)
55°
Cloudy
as of 7:55 AM CST
Rel. Humidity: 87%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: MVFR
Wind Data
6 MPH
0° North
Cloud Level(s): Solid Overcast at 1000ft
Mostly Sunny on Today Today... Cloudy, then gradually becoming mostly sunny, with a high near 57. North wind around 6 mph becoming calm in the afternoon.

Mostly Clear on Tonight Tonight... Mostly clear, with a low around 40. Calm wind.

Sunny on Sunday Sunday... Sunny, with a high near 60. Light and variable wind.

Increasing Clouds on Sunday Night Sunday Night... Increasing clouds, with a low around 41. Light southeast wind.

60% chance of rain Monday Monday... Showers likely after noon. Mostly cloudy, with a high near 58. Light southeast wind becoming south southeast 5 to 9 mph in the morning. Chance of precipitation is 60%.

90% chance of rain Monday Night Monday Night... Showers. Low around 50. South wind 6 to 9 mph. Chance of precipitation is 90%.

20% chance of  Tuesday Tuesday... A 20 percent chance of showers before noon. Partly sunny, with a high near 65. South southwest wind 6 to 10 mph becoming west northwest in the afternoon.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 37. Northwest wind around 8 mph.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 49. West northwest wind 7 to 13 mph, with gusts as high as 18 mph.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 28. West wind 3 to 6 mph.

Mostly Sunny on Thanksgiving Day Thanksgiving Day... Mostly sunny, with a high near 47. Light west wind increasing to 5 to 9 mph in the morning.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 28. West wind 3 to 5 mph.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 46. West wind 5 to 8 mph becoming south in the afternoon.

Current Radar Image


Sun Almanac for Denny, Illinois
Sunrise: 06:46 AM
Sunset: 4:41 PM
Civil Sunrise:06:18 AM
Civil Sunset: 5:10 PM
Nautical Sunrise: 05:45 AM
Nautical Sunset: 5:42 PM
Astro Sunrise: 05:14 AM
Astro Sunset: 6:13 PM
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