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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 3:40 am CST Dec 2, 2025 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Wednesday Thursday Friday Saturday Sunday Monday
Mostly Cloudy on Today Increasing Clouds on Tonight 40% chance of snow on Wednesday Sunny on Thursday Mostly Sunny on Friday Mostly Cloudy on Saturday 20% chance of snow on Sunday Mostly Cloudy on Monday
High: 27°F Low: 22°F High: 35°F High: 16°F High: 32°F High: 32°F High: 27°F High: 33°F
Low: 3 °F Low: 3°F Low: 19°F Low: 21°F Low: 13°F  
Mostly Cloudy Increasing Clouds Snow Sunny Mostly Sunny Mostly Cloudy Snow Mostly Cloudy
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Current Conditions at
QUINCY - (KUIN)
19°
Cloudy
as of 2:54 AM CST
Rel. Humidity: 92%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.06 in.
Flight Rule: MVFR
Wind Data
5 MPH
270° West
Cloud Level(s): Solid Overcast at 1600ft
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
Clear
as of 3:35 AM CST
Wind Data
Calm
Current Conditions at
FORT MADISON - (KFSW)
19°
Cloudy
as of 3:35 AM CST
Rel. Humidity: 92%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: MVFR
Wind Data
3 MPH
250° West
Cloud Level(s): Solid Overcast at 1600ft
Mostly Cloudy on Today Today... Mostly cloudy, with a high near 27. Light and variable wind becoming southwest 5 to 8 mph in the morning.
Increasing Clouds on Tonight Tonight... Increasing clouds, with a low around 22. South wind 7 to 9 mph.
40% chance of snow Wednesday Wednesday... A 40 percent chance of snow after noon. Mostly cloudy, with a high near 35. South wind 6 to 10 mph becoming north in the afternoon. Winds could gust as high as 21 mph.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 3. North wind 7 to 10 mph, with gusts as high as 22 mph.
Sunny on Thursday Thursday... Sunny and cold, with a high near 16. North wind around 6 mph becoming calm in the morning.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 3.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 32.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 19.
Mostly Cloudy on Saturday Saturday... Mostly cloudy, with a high near 32.
20% chance of snow Saturday Night Saturday Night... A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 21.
20% chance of snow Sunday Sunday... A 20 percent chance of snow. Mostly cloudy, with a high near 27.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 13.
Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 33.
Current Radar Image


Sun Almanac for Northbrook, Illinois
Sunrise: 07:10 AM
Sunset: 4:41 PM
Civil Sunrise:06:39 AM
Civil Sunset: 5:11 PM
Nautical Sunrise: 06:06 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:33 AM
Astro Sunset: 6:17 PM
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