Denny, Illinois Weather
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Weather Forecast for Denny, Illinois : Perry County
Issued: 6:16 pm CDT Jun 30, 2025 Latitude: 38.0475507 Longitude: -89.3270302 View on Google Maps

MouseOver for Detail Forecast
Tonight Tuesday Wednesday Thursday Independence Day Saturday Sunday Monday
50% chance of thunderstorms on Tonight Mostly Cloudy on Tuesday Sunny on Wednesday Sunny on Thursday Sunny on Independence Day Mostly Sunny on Saturday 20% chance of thunderstorms on Sunday 20% chance of thunderstorms on Monday
Low: 71°F High: 87°F High: 88°F High: 92°F High: 92°F High: 94°F High: 93°F High: 92°F
Low: 67°F Low: 68°F Low: 70°F Low: 72°F Low: 74°F Low: 73°F  
Thunderstorms Mostly Cloudy Sunny Sunny Sunny Mostly Sunny Thunderstorms Thunderstorms
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Current Conditions at
CARBONDALE - (KMDH)
88°
Feels like 95°F
Partly Cloudy
as of 5:52 PM CDST
Rel. Humidity: 62%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: VFR
Wind Data
9 MPH
210° Southwest
Cloud Level(s): Scattered at 4000ft
Current Conditions at
SPARTA - (KSAR)
77°
Cloudy
Thunderstorm In Vicinity
as of 6:35 PM CDST
Rel. Humidity: 88%
Dew Point: 73°F
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
9 MPH
050° Northeast
Cloud Level(s): Scattered at 6000ft, Broken at 7000ft, Solid Overcast at 7500ft
Current Conditions at
MARION - (KMWA)
88°
Feels like 93°F
Partly Cloudy
as of 5:45 PM CDST
Rel. Humidity: 58%
Dew Point: 72°F
Visibility: 10 Miles
Pressure: 29.90 in.
Flight Rule: VFR
Wind Data
7 MPH
210° Southwest
Cloud Level(s): Scattered at 11000ft
Current Conditions at
CAIRO - (KCIR)
86°
Feels like 95°F
Clear
as of 6:35 PM CDST
Rel. Humidity: 70%
Dew Point: 75°F
Visibility: 10 Miles
Pressure: 29.91 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
50% chance of thunderstorms Tonight Tonight... A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Light and variable wind becoming southwest around 5 mph. Chance of precipitation is 50%.
Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, then gradually becoming sunny, with a high near 87. North northwest wind 5 to 8 mph.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 67. North northwest wind around 6 mph becoming calm in the evening.
Sunny on Wednesday Wednesday... Sunny, with a high near 88. Light northwest wind.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 68. Calm wind.
Sunny on Thursday Thursday... Sunny, with a high near 92. Light southwest wind.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 70. Light south wind.
Sunny on Independence Day Independence Day... Sunny, with a high near 92. Calm wind becoming south 5 to 7 mph in the afternoon.
Mostly Clear on Friday Night Friday Night... Mostly clear, with a low around 72. South wind around 6 mph becoming calm in the evening.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 94. Light south wind becoming south southwest 5 to 9 mph in the morning.
10% chance of thunderstorms Saturday Night Saturday Night... A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. South southwest wind 3 to 7 mph.
20% chance of thunderstorms Sunday Sunday... A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Southwest wind 5 to 7 mph.
20% chance of thunderstorms Sunday Night Sunday Night... A chance of showers and thunderstorms. Partly cloudy, with a low around 73. West wind around 5 mph becoming calm in the evening.
20% chance of thunderstorms Monday Monday... A chance of showers and thunderstorms. Partly sunny, with a high near 92. Calm wind becoming south around 6 mph in the afternoon.
Current Radar Image


Sun Almanac for Denny, Illinois
Sunrise: 05:38 AM
Sunset: 8:24 PM
Civil Sunrise:05:07 AM
Civil Sunset: 8:55 PM
Nautical Sunrise: 04:28 AM
Nautical Sunset: 9:35 PM
Astro Sunrise: 03:43 AM
Astro Sunset: 10:19 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.