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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 10:26 pm CST Jan 22, 2026 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Cloudy on Tonight Partly Sunny on Friday 70% chance of snow on Saturday 40% chance of snow on Sunday Sunny on Monday Mostly Sunny on Tuesday Mostly Sunny on Wednesday Partly Sunny on Thursday
Low: -1°F High: 5 °F High: 8 °F High: 13°F High: 17°F High: 28°F High: 23°F High: 16°F
Low: 0 °F Low: 6 °F Low: -4°F Low: 8°F Low: 10°F Low: 3°F  
Cloudy Partly Sunny Snow Snow Sunny Mostly Sunny Mostly Sunny Partly Sunny
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Current Conditions at
QUINCY - (KUIN)
18°
Feels like 5°F
Mostly Clear
as of 10:54 PM CST
Rel. Humidity: 61%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.42 in.
Flight Rule: VFR
Wind Data
10 MPH
Gust: 20 MPH
330° Northwest
Cloud Level(s): Few at 8000ft
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
14°
Feels like -1°F
Cloudy
as of 11:15 PM CST
Rel. Humidity: 40%
Dew Point: -6°F
Visibility: 10 Miles
Pressure: 30.46 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 24 MPH
340° North
Cloud Level(s): Solid Overcast at 8000ft
Current Conditions at
FORT MADISON - (KFSW)
10°
Feels like -4°F
Clear
as of 11:15 PM CST
Rel. Humidity: 55%
Dew Point: -2°F
Visibility: 10 Miles
Pressure: 30.46 in.
Flight Rule: VFR
Wind Data
12 MPH
300° Northwest
Cloud Level(s): Clear
Cloudy on Tonight Tonight... Partly cloudy, with a low around -1. Wind chill values as low as -15. North wind 14 to 16 mph, with gusts as high as 26 mph.

Partly Sunny on Friday Friday... Partly sunny and cold, with a high near 5. Wind chill values as low as -20. North wind 10 to 16 mph, with gusts as high as 25 mph.

20% chance of snow Friday Night Friday Night... A 20 percent chance of snow after 3am. Cloudy, with a low around 0. Wind chill values as low as -15. Northeast wind around 10 mph.

70% chance of snow Saturday Saturday... Snow likely, mainly after 9am. Cloudy and cold, with a high near 8. Wind chill values as low as -15. Northeast wind 6 to 9 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

70% chance of snow Saturday Night Saturday Night... Snow likely. Cloudy, with a low around 6. North wind 6 to 9 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

40% chance of snow Sunday Sunday... A 40 percent chance of snow. Mostly cloudy and cold, with a high near 13.

20% chance of snow Sunday Night Sunday Night... A 20 percent chance of snow before midnight. Partly cloudy, with a low around -4.

Sunny on Monday Monday... Sunny and cold, with a high near 17.

Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 8.

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

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 10.

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

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

Partly Sunny on Thursday Thursday... Partly sunny and cold, with a high near 16.

Current Radar Image


Sun Almanac for Northbrook, Illinois
Sunrise: 07:21 AM
Sunset: 5:14 PM
Civil Sunrise:06:52 AM
Civil Sunset: 5:43 PM
Nautical Sunrise: 06:19 AM
Nautical Sunset: 6:16 PM
Astro Sunrise: 05:47 AM
Astro Sunset: 6:48 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.