Portage, Illinois Weather
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Weather Forecast for Portage, Illinois : Jo Daviess County
Issued: 8:46 am CDT Sep 16, 2025 Latitude: 42.3827872 Longitude: -90.456517 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Thursday Friday Saturday Sunday Monday
Sunny on Today Mostly Clear on Tonight Sunny on Wednesday Mostly Sunny on Thursday 40% chance of on Friday 40% chance of thunderstorms on Saturday Partly Sunny on Sunday 30% chance of on Monday
High: 86°F Low: 60°F High: 86°F High: 87°F High: 80°F High: 79°F High: 80°F High: 82°F
Low: 59°F Low: 62°F Low: 61°F Low: 60°F Low: 62°F  
Sunny Mostly Clear Sunny Mostly Sunny Partly Sunny Thunderstorms Partly Sunny Partly Sunny
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Current Conditions at
DUBUQUE - (KDBQ)
79°
Clear
as of 10:53 AM CDST
Rel. Humidity: 54%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.23 in.
Flight Rule: VFR
Wind Data
7 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
MONTICELLO MUNICIPAL - (KMXO)
81°
Clear
as of 10:55 AM CDST
Rel. Humidity: 51%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.19 in.
Flight Rule: VFR
Wind Data
7 MPH
180° South
Cloud Level(s): Clear
Sunny on Today Today... Sunny, with a high near 86. Southeast wind around 5 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 60. Southeast wind around 5 mph.
Sunny on Wednesday Wednesday... Sunny, with a high near 86. Calm wind.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 59. Calm wind.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 87.
30% chance of rain Thursday Night Thursday Night... A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 62.
40% chance of Friday Friday... A 40 percent chance of showers. Partly sunny, with a high near 80.
50% chance of thunderstorms Friday Night Friday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
40% chance of thunderstorms Saturday Saturday... A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79.
40% chance of rain Saturday Night Saturday Night... A 40 percent chance of showers. Mostly cloudy, with a low around 60.
Partly Sunny on Sunday Sunday... Partly sunny, with a high near 80.
30% chance of rain Sunday Night Sunday Night... A 30 percent chance of showers. Mostly cloudy, with a low around 62.
30% chance of Monday Monday... A 30 percent chance of showers. Partly sunny, with a high near 82.
Current Radar Image


Sun Almanac for Portage, Illinois
Sunrise: 06:43 AM
Sunset: 7:10 PM
Civil Sunrise:06:15 AM
Civil Sunset: 7:38 PM
Nautical Sunrise: 05:42 AM
Nautical Sunset: 8:11 PM
Astro Sunrise: 05:08 AM
Astro Sunset: 8:45 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.