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Frankfort, Illinois Weather Forecast
Frankfort, Illinois Weather
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Weather Forecast for Frankfort, Illinois : Franklin County
Issued: 1:46 pm CST Dec 22, 2025 Latitude: 37.9000495 Longitude: -88.9022902 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Tuesday Wednesday Christmas Day Friday Saturday Sunday
Cloudy on This Afternoon 10% chance of  on Tonight Mostly Cloudy on Tuesday Cloudy on Wednesday Mostly Cloudy on Christmas Day Mostly Sunny on Friday Mostly Cloudy on Saturday 10% chance of rain on Sunday
High: 53°F Low: 54 °F High: 65°F High: 66°F High: 72°F High: 73°F High: 71°F High: 52°F
Low: 49°F Low: 59°F Low: 62°F Low: 54°F Low: 42°F  
Cloudy Cloudy Mostly Cloudy Cloudy Mostly Cloudy Mostly Sunny Mostly Cloudy Rain
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Current Conditions at
HARRISBURG-RALEIGH - (KHSB)
52°
Cloudy
as of 2:35 PM CST
Rel. Humidity: 50%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 30.19 in.
Flight Rule: VFR
Wind Data
3 MPH
170° South
Cloud Level(s): Solid Overcast at 6500ft
Cloudy on This Afternoon This Afternoon... Cloudy, with a high near 53. South wind around 8 mph.

10% chance of  Tonight Tonight... A slight chance of drizzle before 2am. Cloudy, with a temperature rising to around 54 by 3am. South wind 7 to 9 mph.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 65. West southwest wind 5 to 9 mph becoming calm in the afternoon.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 49. Calm wind.

Cloudy on Wednesday Wednesday... Cloudy, with a high near 66. Calm wind becoming south 5 to 9 mph in the morning.

20% chance of rain Wednesday Night Wednesday Night... A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 59. Southwest wind 6 to 8 mph.

Mostly Cloudy on Christmas Day Christmas Day... Mostly cloudy, with a high near 72. Southwest wind 6 to 10 mph.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 62. South southwest wind 9 to 13 mph, with gusts as high as 22 mph.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 73. West southwest wind 7 to 14 mph, with gusts as high as 22 mph.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 54. Southwest wind 3 to 6 mph.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 71. South southwest wind 5 to 11 mph, with gusts as high as 18 mph.

20% chance of rain Saturday Night Saturday Night... A chance of showers. Mostly cloudy, with a low around 42. South southwest wind around 11 mph becoming northwest after midnight. Winds could gust as high as 21 mph.

10% chance of rain Sunday Sunday... A slight chance of showers. Mostly cloudy, with a high near 52. Northwest wind 11 to 14 mph, with gusts as high as 23 mph.

Sun Almanac for Frankfort, Illinois
Sunrise: 07:08 AM
Sunset: 4:40 PM
Civil Sunrise:06:39 AM
Civil Sunset: 5:10 PM
Nautical Sunrise: 06:06 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:34 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.