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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 4:56 pm CST Dec 9, 2025 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
20% chance of rain on Tonight Mostly Cloudy on Wednesday 20% chance of snow on Thursday Mostly Cloudy on Friday 20% chance of snow on Saturday Sunny on Sunday Partly Sunny on Monday Partly Sunny on Tuesday
Low: 33°F High: 32 °F High: 34°F High: 34°F High: 22°F High: 18°F High: 36°F High: 39°F
Low: 22°F Low: 29°F Low: 17°F Low: 3°F Low: 10°F Low: 21°F  
Rain Mostly Cloudy Snow Mostly Cloudy Snow Sunny Partly Sunny Partly Sunny
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Current Conditions at
QUINCY - (KUIN)
43°
Feels like 36°F
Cloudy
as of 6:54 PM CST
Rel. Humidity: 70%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.53 in.
Flight Rule: VFR
Wind Data
13 MPH
200° South
Cloud Level(s): Solid Overcast at 11000ft
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
43°
Feels like 36°F
Cloudy
as of 7:15 PM CST
Rel. Humidity: 70%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.50 in.
Flight Rule: VFR
Wind Data
13 MPH
210° Southwest
Cloud Level(s): Few at 7000ft, Scattered at 7500ft, Solid Overcast at 9500ft
Current Conditions at
FORT MADISON - (KFSW)
43°
Feels like 35°F
Mostly Cloudy
as of 7:15 PM CST
Rel. Humidity: 70%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.47 in.
Flight Rule: VFR
Wind Data
15 MPH
190° South
Cloud Level(s): Broken at 10000ft, Broken at 12000ft
20% chance of rain Tonight Tonight... A slight chance of rain between 10pm and 1am. Mostly cloudy, with a low around 33. Breezy, with a southwest wind 16 to 22 mph becoming west after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 20%.

Mostly Cloudy on Wednesday Wednesday... Mostly 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 snow Thursday Thursday... A 20 percent chance of snow after noon. Mostly cloudy, with a high near 34. Light and variable wind becoming south around 6 mph in the morning.

30% chance of snow Thursday Night Thursday Night... A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 29. Southeast wind around 7 mph becoming north after midnight.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 34.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 17.

20% chance of snow Saturday Saturday... A 20 percent chance of snow after noon. Mostly cloudy, with a high near 22.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 3.

Sunny on Sunday Sunday... Sunny and cold, with a high near 18.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 10.

Partly Sunny on Monday Monday... Partly sunny, with a high near 36.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 21.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 39.

Current Radar Image


Sun Almanac for Northbrook, Illinois
Sunrise: 07:16 AM
Sunset: 4:40 PM
Civil Sunrise:06:46 AM
Civil Sunset: 5:11 PM
Nautical Sunrise: 06:12 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 05:39 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.