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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 1:21 am CST Dec 10, 2025 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
20% chance of on Overnight Cloudy on Wednesday 20% chance of rain, snow, & sleet on Thursday Mostly Cloudy on Friday 30% chance of snow on Saturday Sunny on Sunday Mostly Sunny on Monday Partly Sunny on Tuesday
Low: 33°F High: 32 °F High: 33°F High: 33°F High: 21°F High: 17°F High: 35°F High: 44°F
Low: 22°F Low: 28°F Low: 15°F Low: 2°F Low: 8°F Low: 24°F  
Cloudy Cloudy Rain, Snow, & Sleet Mostly Cloudy Snow Sunny Mostly Sunny Partly Sunny
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Current Conditions at
QUINCY - (KUIN)
46°
Feels like 39°F
Cloudy
as of 1:54 AM CST
Rel. Humidity: 70%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 29.51 in.
Flight Rule: VFR
Wind Data
16 MPH
250° West
Cloud Level(s): Broken at 6500ft, Solid Overcast at 8500ft
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
46°
Feels like 38°F
Cloudy
as of 1:55 AM CST
Rel. Humidity: 65%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.51 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 29 MPH
310° Northwest
Cloud Level(s): Scattered at 3200ft, Scattered at 8500ft, Solid Overcast at 11000ft
Current Conditions at
FORT MADISON - (KFSW)
41°
Feels like 31°F
Cloudy
as of 1:55 AM CST
Rel. Humidity: 80%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.50 in.
Flight Rule: MVFR
Wind Data
23 MPH
Gust: 29 MPH
280° West
Cloud Level(s): Solid Overcast at 2700ft
20% chance of Overnight Overnight... A chance of sprinkles before 3am. Cloudy, with a low around 33. Breezy, with a west wind 17 to 22 mph, with gusts as high as 39 mph.
Cloudy on Wednesday Wednesday... Cloudy, with a temperature falling to around 32 by 9am. Breezy, with a northwest wind 19 to 24 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 46 mph.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 22. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
20% chance of rain, snow, & sleet Thursday Thursday... A slight chance of rain and snow between noon and 3pm, then a slight chance of rain and sleet after 3pm. Mostly cloudy, with a high near 33. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
30% chance of snow Thursday Night Thursday Night... A chance of snow, mixing with rain after 9pm, then gradually ending. Mostly cloudy, with a low around 28. Southeast wind 6 to 8 mph becoming north after midnight. Chance of precipitation is 30%.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 33.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 15.
30% chance of snow Saturday Saturday... A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 21.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 2.
Sunny on Sunday Sunday... Sunny and cold, with a high near 17.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 8.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 35.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 24.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 44.
Current Radar Image


Sun Almanac for Northbrook, Illinois
Sunrise: 07:17 AM
Sunset: 4:40 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:11 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:45 PM
Astro Sunrise: 05:40 AM
Astro Sunset: 6:17 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.