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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Click for Winter Weather Advisory for Northbrook, Illinois
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 12:56 pm CST Nov 30, 2025 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Monday Tuesday Wednesday Thursday Friday Saturday
Cloudy on This Afternoon Cloudy on Tonight 100% chance of snow on Monday Mostly Sunny on Tuesday Mostly Cloudy on Wednesday Mostly Sunny on Thursday 30% chance of snow on Friday Partly Sunny on Saturday
High: 25°F Low: 18°F High: 26°F High: 29°F High: 34°F High: 16°F High: 29°F High: 35°F
Low: 14°F Low: 19°F Low: 5°F Low: 5°F Low: 21°F  
Cloudy Cloudy Snow Mostly Sunny Mostly Cloudy Mostly Sunny Snow Partly Sunny
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Current Conditions at
QUINCY - (KUIN)
19°
Feels like 7°F
Cloudy
as of 12:54 PM CST
Rel. Humidity: 79%
Dew Point: 14°F
Visibility: 10 Miles
Pressure: 30.41 in.
Flight Rule: MVFR
Wind Data
12 MPH
280° West
Cloud Level(s): Solid Overcast at 1700ft
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
Cloudy
as of 12:55 PM CST
Wind Data
Calm
Current Conditions at
FORT MADISON - (KFSW)
21°
Feels like 8°F
Cloudy
as of 12:55 PM CST
Rel. Humidity: 79%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 30.38 in.
Flight Rule: MVFR
Wind Data
14 MPH
260° West
Cloud Level(s): Solid Overcast at 1400ft
Cloudy on This Afternoon This Afternoon... Cloudy, with a high near 25. West wind 7 to 13 mph, with gusts as high as 20 mph.
Cloudy on Tonight Tonight... Cloudy, with a low around 18. Northwest wind around 6 mph becoming calm in the evening.
100% chance of snow Monday Monday... Snow, mainly after noon. High near 26. Southeast wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
90% chance of snow Monday Night Monday Night... Snow, mainly before 9pm. Low around 14. Calm wind becoming west 5 to 7 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 29. West wind around 6 mph becoming south in the afternoon.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 19.
Mostly Cloudy on Wednesday Wednesday... Mostly cloudy, with a high near 34.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 5.
Mostly Sunny on Thursday Thursday... Mostly sunny and cold, with a high near 16.
20% chance of snow Thursday Night Thursday Night... A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 5.
30% chance of snow Friday Friday... A 30 percent chance of snow. Partly sunny, with a high near 29.
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 35.
Current Radar Image


Sun Almanac for Northbrook, Illinois
Sunrise: 07:08 AM
Sunset: 4:41 PM
Civil Sunrise:06:38 AM
Civil Sunset: 5:11 PM
Nautical Sunrise: 06:04 AM
Nautical Sunset: 5:45 PM
Astro Sunrise: 05:31 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.