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Kernan, Illinois Weather Forecast
Kernan, Illinois Weather
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Weather Forecast for Kernan, Illinois : LaSalle County
Issued: 12:06 pm CST Dec 17, 2025 Latitude: 41.1428115 Longitude: -88.7397936 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Thursday Friday Saturday Sunday Monday Tuesday
Partly Sunny on This Afternoon 70% chance of rain on Tonight 100% chance of rain on Thursday Mostly Sunny on Friday Mostly Cloudy on Saturday Mostly Sunny on Sunday Partly Sunny on Monday Mostly Cloudy on Tuesday
High: 41°F Low: 43 °F High: 48 °F High: 30°F High: 46°F High: 32°F High: 37°F High: 44°F
Low: 14°F Low: 24°F Low: 21°F Low: 21°F Low: 32°F  
Partly Sunny Rain Rain Mostly Sunny Mostly Cloudy Mostly Sunny Partly Sunny Mostly Cloudy
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Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
37°
Clear
as of 12:55 PM CST
Rel. Humidity: 80%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
MORRIS MUNICIPAL AIRPORT - (KC09)
37°
Clear
as of 12:55 PM CST
Rel. Humidity: 80%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
PERU - (KVYS)
39°
Clear
as of 12:55 PM CST
Rel. Humidity: 75%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
5 MPH
0° North
Cloud Level(s): Clear
Partly Sunny on This Afternoon This Afternoon... Partly sunny, with a high near 41. Calm wind becoming southeast around 5 mph.

70% chance of rain Tonight Tonight... Rain or drizzle likely after 3am. Mostly cloudy, with a temperature rising to around 43 by 5am. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

100% chance of rain Thursday Thursday... Rain, mainly before noon. Temperature rising to near 48 by 9am, then falling to around 36 during the remainder of the day. Breezy, with a south wind 15 to 25 mph becoming west in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

20% chance of snow Thursday Night Thursday Night... A slight chance of snow before midnight, then a chance of flurries after midnight. Mostly cloudy, with a low around 14. Wind chill values as low as -2. Breezy, with a west wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 30. Blustery, with a west northwest wind 15 to 20 mph becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 24.

Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 46.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 21.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 32.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 21.

Partly Sunny on Monday Monday... Partly sunny, with a high near 37.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 32.

Mostly Cloudy on Tuesday Tuesday... Mostly cloudy, with a high near 44.

Sun Almanac for Kernan, Illinois
Sunrise: 07:15 AM
Sunset: 4:28 PM
Civil Sunrise:06:44 AM
Civil Sunset: 4:59 PM
Nautical Sunrise: 06:09 AM
Nautical Sunset: 5:34 PM
Astro Sunrise: 05:35 AM
Astro Sunset: 6:07 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.