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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 7:41 pm CST Jan 21, 2026 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

MouseOver for Detail Forecast
Tonight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
Mostly Clear on Tonight Mostly Sunny on Thursday Mostly Cloudy on Friday 50% chance of snow on Saturday 30% chance of snow on Sunday Sunny on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday
Low: 20°F High: 37°F High: 6 °F High: 10°F High: 16°F High: 15°F High: 28°F High: 24°F
Low: 1 °F Low: -1°F Low: 5 °F Low: -3°F Low: 5°F Low: 11°F  
Mostly Clear Mostly Sunny Mostly Cloudy Snow Snow Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
QUINCY - (KUIN)
34°
Feels like 20°F
Partly Cloudy
as of 7:54 PM CST
Rel. Humidity: 50%
Dew Point: 18°F
Visibility: 9 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
28 MPH
Gust: 41 MPH
310° Northwest
Cloud Level(s): Scattered at 6000ft
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
32°
Feels like 20°F
Partly Cloudy
as of 7:55 PM CST
Rel. Humidity: 43%
Dew Point: 12°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 31 MPH
300° Northwest
Cloud Level(s): Few at 2700ft, Scattered at 3600ft, Scattered at 4300ft
Current Conditions at
FORT MADISON - (KFSW)
32°
Feels like 20°F
Mostly Clear
as of 7:55 PM CST
Rel. Humidity: 54%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 28 MPH
270° West
Cloud Level(s): Few at 3900ft
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 20. Breezy, with a northwest wind 16 to 21 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 37 mph.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 37. West wind 5 to 10 mph.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 1. Wind chill values as low as -15. West wind 6 to 16 mph becoming north after midnight. Winds could gust as high as 26 mph.
Mostly Cloudy on Friday Friday... Mostly cloudy and cold, with a high near 6. Wind chill values as low as -15. North wind 10 to 14 mph, with gusts as high as 26 mph.
20% chance of snow Friday Night Friday Night... A 20 percent chance of snow after midnight. Cloudy, with a low around -1. North wind around 10 mph.
50% chance of snow Saturday Saturday... A 50 percent chance of snow. Cloudy and cold, with a high near 10.
70% chance of snow Saturday Night Saturday Night... Snow likely, mainly before midnight. Cloudy, with a low around 5. Chance of precipitation is 70%.
30% chance of snow Sunday Sunday... A 30 percent chance of snow before noon. Partly sunny and cold, with a high near 16.
Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around -3.
Sunny on Monday Monday... Sunny and cold, with a high near 15.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 5.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 28.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 11.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 24.
Current Radar Image


Sun Almanac for Northbrook, Illinois
Sunrise: 07:22 AM
Sunset: 5:12 PM
Civil Sunrise:06:53 AM
Civil Sunset: 5:41 PM
Nautical Sunrise: 06:20 AM
Nautical Sunset: 6:14 PM
Astro Sunrise: 05:48 AM
Astro Sunset: 6:46 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.