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Frankfort, Illinois Weather Forecast
Frankfort, Illinois Weather
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Weather Forecast for Frankfort, Illinois : Will County
Issued: 3:15 am CST Dec 26, 2025 Latitude: 41.4958665 Longitude: -87.8486613 View on Google Maps

MouseOver for Detail Forecast
Overnight Friday Saturday Sunday Monday Tuesday Wednesday New Year's Day
50% chance of rain on Overnight 50% chance of rain on Friday Morning Fog on Saturday 80% chance of rain on Sunday Mostly Cloudy on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday Partly Sunny on New Year's Day
Low: 44°F High: 50°F High: 45°F High: 59°F High: 26°F High: 29°F High: 28°F High: 23°F
Low: 39°F Low: 44°F Low: 20°F Low: 14°F Low: 20°F Low: 12°F  
Rain Rain Morning Fog Rain Mostly Cloudy Mostly Sunny Partly Sunny Partly Sunny
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Current Conditions at
ROMEOVILLE WFO - (KLOT)
41°
Feels like 33°F
Cloudy
Mist
as of 4:30 AM CST
Rel. Humidity: 100%
Dew Point: 41°F
Visibility: 1 1/2 Miles
Pressure: 29.70 in.
Flight Rule: LIFR
Wind Data
13 MPH
140° Southeast
Cloud Level(s): Solid Overcast at 300ft
Current Conditions at
LANSING MUNICIPAL - (KIGQ)
39°
Feels like 31°F
Cloudy
Drizzle
as of 4:35 AM CST
Rel. Humidity: 93%
Dew Point: 37°F
Visibility: 2 Miles
Pressure: 29.72 in.
Flight Rule: IFR
Wind Data
13 MPH
150° Southeast
Cloud Level(s): Solid Overcast at 500ft
Current Conditions at
JOLIET - (KJOT)
43°
Cloudy
Mist
as of 4:35 AM CST
Rel. Humidity: 93%
Dew Point: 41°F
Visibility: 2 Miles
Pressure: 29.70 in.
Flight Rule: LIFR
Wind Data
7 MPH
150° Southeast
Cloud Level(s): Solid Overcast at 400ft
Current Conditions at
CHICAGO-MIDWAY - (KMDW)
39°
Feels like 32°F
Cloudy
Mist
as of 4:12 AM CST
Rel. Humidity: 93%
Dew Point: 37°F
Visibility: 5 Miles
Pressure: 29.72 in.
Flight Rule: IFR
Wind Data
10 MPH
150° Southeast
Cloud Level(s): Solid Overcast at 900ft
50% chance of rain Overnight Overnight... Intermittent rain. Cloudy, with a steady temperature around 44. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
50% chance of rain Friday Friday... Intermittent rain, mainly before 8am. Areas of dense fog before 11am. Otherwise, cloudy, with a high near 50. South southeast wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.
Patchy Fog on Friday Night Friday Night... Patchy fog after midnight. Otherwise, cloudy, with a low around 39. Northwest wind around 5 mph becoming calm in the evening.
Morning Fog on Saturday Saturday... Patchy fog before 9am. Otherwise, cloudy, with a high near 45. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.
50% chance of rain Saturday Night Saturday Night... A 50 percent chance of showers, mainly after midnight. Cloudy, with a low around 44. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
80% chance of rain Sunday Sunday... Showers. High near 59. Chance of precipitation is 80%.
60% chance of rain & snow Sunday Night Sunday Night... Rain showers likely before midnight, then a chance of rain and snow showers between midnight and 3am, then a chance of snow showers after 3am. Cloudy, with a low around 20. Blustery. Chance of precipitation is 60%.
Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 26. Blustery.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 14.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 29.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 20.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 28.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 12.
Partly Sunny on New Year's Day New Year's Day... Partly sunny, with a high near 23.
Current Radar Image


Sun Almanac for Frankfort, Illinois
Sunrise: 07:17 AM
Sunset: 4:28 PM
Civil Sunrise:06:45 AM
Civil Sunset: 4:59 PM
Nautical Sunrise: 06:10 AM
Nautical Sunset: 5:34 PM
Astro Sunrise: 05:37 AM
Astro Sunset: 6:08 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.