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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Click for Hazardous Weather Outlook for Northbrook, Illinois
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 12:26 am CST Dec 12, 2025 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

MouseOver for Detail Forecast
Overnight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Cloudy on Overnight Mostly Cloudy on Friday 80% chance of snow on Saturday Sunny on Sunday Sunny on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday Mostly Sunny on Thursday
Low: 24°F High: 32°F High: 15°F High: 8°F High: 36°F High: 45°F High: 53°F High: 49°F
Low: 14°F Low: -3°F Low: 2°F Low: 24°F Low: 35°F Low: 38°F  
Cloudy Mostly Cloudy Snow Sunny Sunny Mostly Sunny Partly Sunny Mostly Sunny
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Current Conditions at
QUINCY - (KUIN)
27°
Feels like 16°F
Cloudy
Mist
as of 11:54 PM CST
Rel. Humidity: 100%
Dew Point: 27°F
Visibility: 6 Miles
Pressure: 29.95 in.
Flight Rule: IFR
Wind Data
10 MPH
060° Northeast
Cloud Level(s): Solid Overcast at 600ft
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
27°
Cloudy
as of 11:55 PM CST
Rel. Humidity: 92%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: MVFR
Wind Data
8 MPH
060° Northeast
Cloud Level(s): Scattered at 800ft, Solid Overcast at 1200ft
Current Conditions at
FORT MADISON - (KFSW)
25°
Feels like 14°F
Cloudy
as of 11:55 PM CST
Rel. Humidity: 92%
Dew Point: 23°F
Visibility: 9 Miles
Pressure: 30.01 in.
Flight Rule: IFR
Wind Data
10 MPH
010° North
Cloud Level(s): Broken at 700ft, Solid Overcast at 1400ft
Cloudy on Overnight Overnight... Cloudy, with a low around 24. Northeast wind 7 to 10 mph.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 32. Northwest wind around 8 mph.
Increasing Clouds on Friday Night Friday Night... Increasing clouds, with a low around 14. Northwest wind 6 to 8 mph.
80% chance of snow Saturday Saturday... Snow, mainly before 3pm. High near 15. North wind around 8 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around -3. Northwest wind around 8 mph.
Sunny on Sunday Sunday... Sunny and cold, with a high near 8.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 2.
Sunny on Monday Monday... Sunny, with a high near 36.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 24.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 45.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 35.
Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 53.
20% chance of rain Wednesday Night Wednesday Night... A 20 percent chance of rain. Mostly cloudy, with a low around 38.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 49.
Current Radar Image


Sun Almanac for Northbrook, Illinois
Sunrise: 07:18 AM
Sunset: 4:41 PM
Civil Sunrise:06:48 AM
Civil Sunset: 5:11 PM
Nautical Sunrise: 06:14 AM
Nautical Sunset: 5:45 PM
Astro Sunrise: 05:41 AM
Astro Sunset: 6:18 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.