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Frankfort, Illinois Weather Forecast
Frankfort, Illinois Weather
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Weather Forecast for Frankfort, Illinois : Franklin County
Issued: 7:47 pm CST Nov 14, 2025 Latitude: 37.9000495 Longitude: -88.9022902 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday Thursday Friday
Mostly Cloudy on Tonight Mostly Cloudy on Saturday Sunny on Sunday 30% chance of rain on Monday 20% chance of  on Tuesday 20% chance of  on Wednesday Rain on Thursday 20% chance of  on Friday
Low: 60°F High: 76°F High: 60°F High: 60°F High: 65°F High: 59°F High: 65°F High: 62°F
Low: 46°F Low: 36°F Low: 48°F Low: 41°F Low: 46°F Low: 46°F  
Mostly Cloudy Mostly Cloudy Sunny Rain Partly Sunny Partly Sunny Rain Partly Sunny
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Current Conditions at
HARRISBURG-RALEIGH - (KHSB)
63°
Clear
as of 10:35 PM CST
Rel. Humidity: 72%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 29.95 in.
Flight Rule: VFR
Wind Data
6 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
CARBONDALE - (KMDH)
64°
Clear
as of 9:52 PM CST
Rel. Humidity: 72%
Dew Point: 55°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
14 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
MT VERNON - (KMVN)
Clear
as of 9:56 PM CST
Visibility: 10 Miles
Pressure: 29.93 in.
Flight Rule: VFR
Wind Data
10 MPH
210° Southwest
Cloud Level(s): Clear
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 60. South southwest wind 8 to 10 mph, with gusts as high as 20 mph.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, then gradually becoming sunny, with a high near 76. Southwest wind 11 to 17 mph, with gusts as high as 23 mph.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 46. Southwest wind 6 to 8 mph becoming north northwest after midnight.

Sunny on Sunday Sunday... Sunny, with a high near 60. North wind 3 to 7 mph.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 36. Calm wind.

30% chance of rain Monday Monday... A 30 percent chance of showers after noon. Mostly sunny, with a high near 60. Calm wind becoming east southeast 5 to 9 mph in the morning.

70% chance of rain Monday Night Monday Night... Showers likely. Mostly cloudy, with a low around 48. East southeast wind 6 to 8 mph. Chance of precipitation is 70%.

20% chance of  Tuesday Tuesday... A chance of showers before noon. Partly sunny, with a high near 65. Southeast wind 7 to 11 mph becoming northwest in the afternoon.

10% chance of rain Tuesday Night Tuesday Night... A slight chance of showers. Mostly cloudy, with a low around 41. North wind around 6 mph becoming calm in the evening.

20% chance of  Wednesday Wednesday... A chance of showers, mainly after noon. Partly sunny, with a high near 59. East wind 3 to 7 mph.

20% chance of rain Wednesday Night Wednesday Night... A chance of showers. Mostly cloudy, with a low around 46. South southeast wind 3 to 7 mph.

Rain on Thursday Thursday... Showers likely. Mostly cloudy, with a high near 65. South southeast wind 7 to 11 mph becoming southwest in the afternoon.

Rain on Thursday Night Thursday Night... Showers likely. Mostly cloudy, with a low around 46. Southwest wind 6 to 8 mph becoming south southeast after midnight.

20% chance of  Friday Friday... A chance of showers. Partly sunny, with a high near 62. Southeast wind 8 to 11 mph becoming south southwest in the afternoon.

Current Radar Image


Sun Almanac for Frankfort, Illinois
Sunrise: 06:37 AM
Sunset: 4:44 PM
Civil Sunrise:06:09 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 05:37 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:06 AM
Astro Sunset: 6:15 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.