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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 12:21 am CST Jan 13, 2026 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

MouseOver for Detail Forecast
Overnight Tuesday Wednesday Thursday Friday Saturday Sunday M.L.King Day
Mostly Clear on Overnight 20% chance of rain on Tuesday Mostly Cloudy on Wednesday Mostly Sunny on Thursday 30% chance of snow on Friday Partly Sunny on Saturday Mostly Sunny on Sunday Mostly Sunny on M.L.King Day
Low: 35°F High: 57°F High: 29 °F High: 31°F High: 40°F High: 23°F High: 22°F High: 32°F
Low: 33°F Low: 16°F Low: 27°F Low: 16°F Low: 7°F Low: 11°F  
Mostly Clear Rain Mostly Cloudy Mostly Sunny Snow Partly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
QUINCY - (KUIN)
37°
Feels like 30°F
Clear
as of 11:54 PM CST
Rel. Humidity: 69%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
10 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
39°
Feels like 32°F
Clear
as of 11:55 PM CST
Rel. Humidity: 64%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.98 in.
Flight Rule: VFR
Wind Data
10 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
FORT MADISON - (KFSW)
41°
Feels like 34°F
Clear
as of 11:55 PM CST
Rel. Humidity: 65%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
10 MPH
180° South
Cloud Level(s): Clear
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 35. South wind around 9 mph, with gusts as high as 20 mph.
20% chance of rain Tuesday Tuesday... A 20 percent chance of rain after 5pm. Increasing clouds, with a high near 57. West wind 10 to 13 mph, with gusts as high as 24 mph.
20% chance of rain Tuesday Night Tuesday Night... A 20 percent chance of rain before 8pm. Mostly cloudy, with a low around 33. West wind 10 to 17 mph, with gusts as high as 26 mph.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 29 by 5pm. North wind around 18 mph, with gusts as high as 34 mph.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 16. North wind 7 to 14 mph, with gusts as high as 24 mph.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 31.
20% chance of snow Thursday Night Thursday Night... A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 27.
30% chance of snow Friday Friday... A 30 percent chance of snow after noon. Mostly cloudy, with a high near 40.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 16.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 23.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 7.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 22.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 11.
Mostly Sunny on M.L.King Day M.L.King Day... Mostly sunny, with a high near 32.
Current Radar Image


Sun Almanac for Northbrook, Illinois
Sunrise: 07:26 AM
Sunset: 5:03 PM
Civil Sunrise:06:56 AM
Civil Sunset: 5:32 PM
Nautical Sunrise: 06:23 AM
Nautical Sunset: 6:06 PM
Astro Sunrise: 05:50 AM
Astro Sunset: 6:38 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.