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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 12:21 am CST Jan 14, 2026 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday M.L.King Day Tuesday
Mostly Cloudy on Overnight 20% chance of snow on Wednesday Mostly Sunny on Thursday Partly Sunny on Friday Partly Sunny on Saturday Mostly Sunny on Sunday Mostly Sunny on M.L.King Day Mostly Sunny on Tuesday
Low: 31°F High: 28 °F High: 34°F High: 40°F High: 22°F High: 28°F High: 28°F High: 28°F
Low: 16°F Low: 29°F Low: 17°F Low: 9°F Low: 15°F Low: 10°F  
Mostly Cloudy Snow Mostly Sunny Partly Sunny Partly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
QUINCY - (KUIN)
43°
Feels like 36°F
Clear
as of 12:54 AM CST
Rel. Humidity: 70%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.75 in.
Flight Rule: VFR
Wind Data
10 MPH
310° Northwest
Cloud Level(s): Clear
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
39°
Feels like 30°F
Mostly Cloudy
as of 1:15 AM CST
Rel. Humidity: 69%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.76 in.
Flight Rule: MVFR
Wind Data
16 MPH
Gust: 24 MPH
320° Northwest
Cloud Level(s): Broken at 2700ft
Current Conditions at
FORT MADISON - (KFSW)
39°
Feels like 29°F
Mostly Cloudy
as of 1:15 AM CST
Rel. Humidity: 75%
Dew Point: 32°F
Visibility: 10 Miles
Pressure: 29.75 in.
Flight Rule: MVFR
Wind Data
18 MPH
Gust: 22 MPH
280° West
Cloud Level(s): Broken at 2500ft
Mostly Cloudy on Overnight Overnight... Mostly cloudy, with a low around 31. Northwest wind 13 to 18 mph, with gusts as high as 30 mph.

20% chance of snow Wednesday Wednesday... A chance of flurries before 7am. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 28 by 5pm. Breezy, with a north wind 15 to 22 mph, with gusts as high as 33 mph.

Clear on Wednesday Night Wednesday Night... Clear, with a low around 16. Northwest wind 7 to 13 mph, with gusts as high as 21 mph.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 34. Northwest wind 5 to 8 mph becoming south in the afternoon.

40% chance of snow Thursday Night Thursday Night... A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 29. South wind 8 to 14 mph becoming west after midnight. Winds could gust as high as 25 mph.

Partly Sunny on Friday Friday... Partly sunny, with a high near 40.

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

Partly Sunny on Saturday Saturday... Partly sunny, with a high near 22.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 9.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 28.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 15.

Mostly Sunny on M.L.King Day M.L.King Day... Mostly sunny, with a high near 28.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 10.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 28.

Current Radar Image


Sun Almanac for Northbrook, Illinois
Sunrise: 07:26 AM
Sunset: 5:04 PM
Civil Sunrise:06:56 AM
Civil Sunset: 5:33 PM
Nautical Sunrise: 06:22 AM
Nautical Sunset: 6:07 PM
Astro Sunrise: 05:50 AM
Astro Sunset: 6:39 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.