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Denny, Illinois Weather Forecast
Denny, Illinois Weather
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Weather Forecast for Denny, Illinois : Perry County
Issued: 3:16 pm CST Nov 23, 2025 Latitude: 38.0475507 Longitude: -89.3270302 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Monday Tuesday Wednesday Thanksgiving Day Friday Saturday
Partly Sunny on This Afternoon Patchy Fog on Tonight 70% chance of rain on Monday 30% chance of rain on Tuesday Sunny on Wednesday Sunny on Thanksgiving Day Mostly Sunny on Friday 20% chance of rain & snow on Saturday
High: 53°F Low: 43°F High: 58°F High: 63°F High: 47°F High: 45°F High: 45°F High: 46°F
Low: 50°F Low: 37°F Low: 28°F Low: 26°F Low: 31°F  
Partly Sunny Patchy Fog Rain Rain Sunny Sunny Mostly Sunny Rain & Snow
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Current Conditions at
CARBONDALE - (KMDH)
48°
Cloudy
Mist
as of 3:31 PM CST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 2 1/2 Miles
Pressure: 30.20 in.
Flight Rule: IFR
Wind Data
3 MPH
180° South
Cloud Level(s): Solid Overcast at 500ft
Current Conditions at
SPARTA - (KSAR)
48°
Cloudy
as of 3:35 PM CST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.20 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 500ft
Current Conditions at
CAIRO - (KCIR)
50°
Cloudy
as of 3:35 PM CST
Rel. Humidity: 93%
Dew Point: 48°F
Visibility: 4 Miles
Pressure: 30.21 in.
Flight Rule: IFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 500ft
Partly Sunny on This Afternoon This Afternoon... Partly sunny, with a high near 53. Calm wind.

Patchy Fog on Tonight Tonight... Patchy fog between 9pm and midnight. Otherwise, mostly cloudy, with a low around 43. Calm wind.

70% chance of rain Monday Monday... Showers likely, mainly after 2pm. Cloudy, with a high near 58. South southeast wind 3 to 8 mph. Chance of precipitation is 70%.

100% chance of rain Monday Night Monday Night... Showers. Low around 50. South wind 3 to 6 mph. Chance of precipitation is 100%.

30% chance of rain Tuesday Tuesday... A 30 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 63. West wind 3 to 7 mph.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 37. West wind 5 to 14 mph, with gusts as high as 21 mph.

Sunny on Wednesday Wednesday... Sunny, with a high near 47. West northwest wind 11 to 17 mph, with gusts as high as 25 mph.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 28. West northwest wind 6 to 9 mph.

Sunny on Thanksgiving Day Thanksgiving Day... Sunny, with a high near 45. West northwest wind 5 to 10 mph becoming light in the afternoon.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 26. Calm wind.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 45. Calm wind becoming south southeast around 6 mph in the morning.

20% chance of rain & snow Friday Night Friday Night... A chance of rain and snow showers. Mostly cloudy, with a low around 31. Southeast wind 3 to 6 mph.

20% chance of rain & snow Saturday Saturday... A chance of rain and snow showers. Mostly cloudy, with a high near 46. South southeast wind 6 to 10 mph.

Current Radar Image


Sun Almanac for Denny, Illinois
Sunrise: 06:47 AM
Sunset: 4:40 PM
Civil Sunrise:06:19 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 05:46 AM
Nautical Sunset: 5:41 PM
Astro Sunrise: 05:15 AM
Astro Sunset: 6:13 PM
Illinois' Current Temperatures
Illinois' Current Temperature Map


Illinois' Satellite ImageIllinois Satellite Image

Illinois' Current Wind DirectionIllinois' Current Wind Direction

National Summary
of upper and lower values of current conditions amongst 5224 locations
in the contiguous United States
High
Temp
90° Zapata Cnty A/P, Texas
and 1 other location
Low
Temp
27° Salida Mountain, Colorado
and 1 other location
Wind
Speed
22mph West Woodward, Oklahoma
Wind
Gust
38mph Dodge City, Kansas
Wind
Chill
17° Salida Mountain, Colorado
Heat
Index
91° Edinburg Intl Arpt, Texas
and 1 other location
High
Pressure
30.21Hg Metropolis Municipal Arp, Illinois
and 1 other location
Low
Pressure
29.74Hg Cavalier Municipal A/P, North Dakota
and 1 other location
# Locations Reporting Snow 16
# Locations Reporting Rain 31
# Locations Reporting Thunderstorms / Lightning 8
# Locations Reporting Fog 3
Average Temperature in the Contiguous USA 57°
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