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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 7:47 am CST Jan 19, 2026 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

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M.L.King Day Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Sunny on M.L.King Day Mostly Cloudy on Tonight Mostly Sunny on Tuesday Sunny on Wednesday Mostly Sunny on Thursday Mostly Cloudy on Friday 20% chance of snow on Saturday Mostly Sunny on Sunday
High: 18°F Low: 11°F High: 33°F High: 40°F High: 33°F High: 16°F High: 10°F High: 23°F
  Low: 27°F Low: 19°F Low: 11°F Low: -4°F Low: 4°F  
Sunny Mostly Cloudy Mostly Sunny Sunny Mostly Sunny Mostly Cloudy Snow Mostly Sunny
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Current Conditions at
QUINCY - (KUIN)
Feels like -12°F
Mostly Cloudy
as of 9:32 AM CST
Rel. Humidity: 55%
Dew Point: -6°F
Visibility: 9 Miles
Pressure: 30.41 in.
Flight Rule: MVFR
Wind Data
20 MPH
Gust: 32 MPH
310° Northwest
Cloud Level(s): Broken at 2300ft
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
Feels like -13°F
Mostly Clear
as of 9:15 AM CST
Rel. Humidity: 50%
Dew Point: -9°F
Visibility: 10 Miles
Pressure: 30.40 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 23 MPH
300° Northwest
Cloud Level(s): Few at 2000ft
Current Conditions at
FORT MADISON - (KFSW)
Feels like -19°F
Mostly Cloudy
as of 9:15 AM CST
Rel. Humidity: 65%
Dew Point: -6°F
Visibility: 10 Miles
Pressure: 30.39 in.
Flight Rule: MVFR
Wind Data
23 MPH
Gust: 29 MPH
270° West
Cloud Level(s): Broken at 2000ft
Sunny on M.L.King Day M.L.King Day... Sunny and cold, with a high near 18. Wind chill values as low as -10. Northwest wind 13 to 18 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 28 mph.

Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 11. West wind around 6 mph becoming light and variable after midnight.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 33. South wind 5 to 7 mph.

Partly Cloudy on Tuesday Night Tuesday Night... Cloudy, then gradually becoming partly cloudy, with a low around 27. Southeast wind 6 to 11 mph becoming west after midnight. Winds could gust as high as 24 mph.

Sunny on Wednesday Wednesday... Sunny, with a high near 40. West wind around 10 mph, with gusts as high as 22 mph.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 19.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 33.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 11.

Mostly Cloudy on Friday Friday... Mostly cloudy and cold, with a high near 16.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around -4.

20% chance of snow Saturday Saturday... A 20 percent chance of snow. Partly sunny and cold, with a high near 10.

20% chance of snow Saturday Night Saturday Night... A 20 percent chance of snow. Mostly cloudy, with a low around 4.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 23.

Current Radar Image


Sun Almanac for Northbrook, Illinois
Sunrise: 07:23 AM
Sunset: 5:09 PM
Civil Sunrise:06:54 AM
Civil Sunset: 5:39 PM
Nautical Sunrise: 06:21 AM
Nautical Sunset: 6:12 PM
Astro Sunrise: 05:48 AM
Astro Sunset: 6:44 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.