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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 8:37 am CST Jan 11, 2026 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Thursday Friday Saturday
Mostly Cloudy on Today Mostly Clear on Tonight Mostly Sunny on Monday Partly Sunny on Tuesday Partly Sunny on Wednesday Partly Sunny on Thursday Mostly Cloudy on Friday Partly Sunny on Saturday
High: 37°F Low: 26°F High: 49°F High: 56°F High: 40°F High: 36°F High: 39°F High: 27°F
Low: 36°F Low: 35°F Low: 19°F Low: 28°F Low: 21°F  
Mostly Cloudy Mostly Clear Mostly Sunny Partly Sunny Partly Sunny Partly Sunny Mostly Cloudy Partly Sunny
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Current Conditions at
QUINCY - (KUIN)
27°
Feels like 16°F
Mostly Cloudy
as of 9:54 AM CST
Rel. Humidity: 68%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.49 in.
Flight Rule: MVFR
Wind Data
12 MPH
300° Northwest
Cloud Level(s): Broken at 2100ft
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
25°
Cloudy
as of 9:55 AM CST
Rel. Humidity: 68%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.50 in.
Flight Rule: MVFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 2200ft
Current Conditions at
FORT MADISON - (KFSW)
25°
Feels like 12°F
Cloudy
as of 9:55 AM CST
Rel. Humidity: 73%
Dew Point: 18°F
Visibility: 10 Miles
Pressure: 30.49 in.
Flight Rule: MVFR
Wind Data
15 MPH
Gust: 20 MPH
290° West
Cloud Level(s): Solid Overcast at 2100ft
Mostly Cloudy on Today Today... Mostly cloudy, then gradually becoming sunny, with a high near 37. Northwest wind 7 to 9 mph becoming southwest in the afternoon.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 26. Southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 49. Southwest wind 5 to 9 mph.
Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 36. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 56. West wind 9 to 11 mph, with gusts as high as 24 mph.
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 40.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 19.
Partly Sunny on Thursday Thursday... Partly sunny, with a high near 36.
20% chance of snow Thursday Night Thursday Night... A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 28.
Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 39.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 21.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 27.
Current Radar Image


Sun Almanac for Northbrook, Illinois
Sunrise: 07:27 AM
Sunset: 5:01 PM
Civil Sunrise:06:57 AM
Civil Sunset: 5:30 PM
Nautical Sunrise: 06:23 AM
Nautical Sunset: 6:04 PM
Astro Sunrise: 05:51 AM
Astro Sunset: 6:37 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.