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Frankfort, Illinois Weather Forecast
Frankfort, Illinois Weather
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Click for Hazardous Weather Outlook for Frankfort, Illinois
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Weather Forecast for Frankfort, Illinois : Will County
Issued: 10:01 am CST Dec 4, 2025 Latitude: 41.4958665 Longitude: -87.8486613 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Friday Saturday Sunday Monday Tuesday Wednesday
Sunny on Today Cloudy on Tonight Mostly Sunny on Friday Mostly Cloudy on Saturday 30% chance of snow on Sunday Partly Sunny on Monday Mostly Cloudy on Tuesday 20% chance of rain & snow on Wednesday
High: 20°F Low: 1 °F High: 27°F High: 29°F High: 27°F High: 21°F High: 32°F High: 33°F
Low: 21°F Low: 15°F Low: 8°F Low: 13°F Low: 22°F  
Sunny Cloudy Mostly Sunny Mostly Cloudy Snow Partly Sunny Mostly Cloudy Rain & Snow
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Current Conditions at
LANSING MUNICIPAL - (KIGQ)
16°
Clear
as of 9:35 AM CST
Rel. Humidity: 52%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 30.41 in.
Flight Rule: VFR
Wind Data
8 MPH
320° Northwest
Cloud Level(s): Clear
Current Conditions at
JOLIET - (KJOT)
14°
Clear
as of 9:35 AM CST
Rel. Humidity: 51%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 30.44 in.
Flight Rule: VFR
Wind Data
3 MPH
020° North
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 20. Wind chill values as low as 1. North northwest wind around 5 mph becoming west southwest in the afternoon.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 1. Wind chill values as low as -10. South wind 5 to 10 mph.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 27. Wind chill values as low as -4. South southwest wind around 10 mph, with gusts as high as 20 mph.
20% chance of snow Friday Night Friday Night... A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 21. South southwest wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph.
Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 29. West northwest wind around 5 mph, with gusts as high as 15 mph.
40% chance of snow Saturday Night Saturday Night... A 40 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 15.
30% chance of snow Sunday Sunday... A 30 percent chance of snow before noon. Mostly cloudy, with a high near 27.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 8.
Partly Sunny on Monday Monday... Partly sunny, with a high near 21.
20% chance of snow Monday Night Monday Night... A chance of snow. Mostly cloudy, with a low around 13.
Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 32.
20% chance of snow Tuesday Night Tuesday Night... A chance of snow. Mostly cloudy, with a low around 22.
20% chance of rain & snow Wednesday Wednesday... A chance of rain and snow. Mostly cloudy, with a high near 33.
Sun Almanac for Frankfort, Illinois
Sunrise: 07:02 AM
Sunset: 4:22 PM
Civil Sunrise:06:31 AM
Civil Sunset: 4:53 PM
Nautical Sunrise: 05:56 AM
Nautical Sunset: 5:27 PM
Astro Sunrise: 05:23 AM
Astro Sunset: 6:01 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.