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Harrison, Illinois Weather Forecast
Harrison, Illinois Weather
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Weather Forecast for Harrison, Illinois : Winnebago County
Issued: 5:11 am CST Nov 5, 2025 Latitude: 42.4272375 Longitude: -89.1915002 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Veterans Day
Partly Sunny on Today Mostly Clear on Tonight Increasing Clouds on Thursday Mostly Sunny on Friday 50% chance of rain on Saturday Mostly Sunny on Sunday Sunny on Monday Partly Sunny on Veterans Day
High: 58°F Low: 29°F High: 56°F High: 62°F High: 46°F High: 35°F High: 36°F High: 42°F
Low: 45°F Low: 32°F Low: 25°F Low: 19°F Low: 19°F  
Partly Sunny Mostly Clear Increasing Clouds Mostly Sunny Rain Mostly Sunny Sunny Partly Sunny
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Current Conditions at
JANESVILLE - (KJVL)
48°
Feels like 43°F
Mostly Cloudy
as of 6:45 AM CST
Rel. Humidity: 87%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.83 in.
Flight Rule: VFR
Wind Data
10 MPH
280° West
Cloud Level(s): Broken at 15000ft
Current Conditions at
ROCKFORD - (KRFD)
48°
Cloudy
as of 6:54 AM CST
Rel. Humidity: 87%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.87 in.
Flight Rule: VFR
Wind Data
6 MPH
260° West
Cloud Level(s): Solid Overcast at 25000ft
Current Conditions at
MONROE - (KEFT)
48°
Feels like 42°F
Clear
as of 7:15 AM CST
Rel. Humidity: 87%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.86 in.
Flight Rule: VFR
Wind Data
13 MPH
280° West
Cloud Level(s): Clear
Partly Sunny on Today Today... Partly sunny, then gradually becoming sunny, with a high near 58. Breezy, with a north northwest wind 10 to 15 mph increasing to 15 to 20 mph. Winds could gust as high as 35 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 29. West northwest wind 5 to 10 mph becoming light and variable after midnight.
Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 56. Light south wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
70% chance of rain Thursday Night Thursday Night... Showers likely, mainly after midnight. Cloudy, with a low around 45. South southeast wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 62. West wind 10 to 15 mph, with gusts as high as 25 mph.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 32.
50% chance of rain Saturday Saturday... A 50 percent chance of rain after noon. Partly sunny, with a high near 46.
70% chance of rain & snow Saturday Night Saturday Night... Rain likely, possibly mixed with snow, mainly before midnight. Mostly cloudy, with a low around 25.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 35.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 19.
Sunny on Monday Monday... Sunny, with a high near 36.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 19.
Partly Sunny on Veterans Day Veterans Day... Partly sunny, with a high near 42.
Current Radar Image


Sun Almanac for Harrison, Illinois
Sunrise: 06:36 AM
Sunset: 4:45 PM
Civil Sunrise:06:06 AM
Civil Sunset: 5:14 PM
Nautical Sunrise: 05:33 AM
Nautical Sunset: 5:48 PM
Astro Sunrise: 05:00 AM
Astro Sunset: 6:21 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.