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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 4:46 am CST Jan 7, 2026 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Tuesday
Morning Fog on Today Increasing Clouds on Tonight 100% chance of rain on Thursday Mostly Cloudy on Friday 30% chance of rain & snow on Saturday Mostly Sunny on Sunday Sunny on Monday Partly Sunny on Tuesday
High: 60°F Low: 44°F High: 60°F High: 49°F High: 41°F High: 32°F High: 44°F High: 47°F
Low: 43°F Low: 34°F Low: 22°F Low: 22°F Low: 30°F  
Morning Fog Increasing Clouds Rain Mostly Cloudy Rain & Snow Mostly Sunny Sunny Partly Sunny
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Current Conditions at
QUINCY - (KUIN)
32°
Clear
Mist
as of 7:11 AM CST
Rel. Humidity: 100%
Dew Point: 32°F
Visibility: 3 Miles
Pressure: 29.91 in.
Flight Rule: MVFR
Wind Data
8 MPH
140° Southeast
Cloud Level(s): Clear
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
28°
Clear
Freezing Fog
as of 7:35 AM CST
Rel. Humidity: 100%
Dew Point: 28°F
Visibility: Less than 1/4 Miles
Pressure: 29.90 in.
Flight Rule: LIFR
Wind Data
3 MPH
120° Southeast
Current Conditions at
FORT MADISON - (KFSW)
28°
Mostly Clear
Freezing Fog
as of 7:35 AM CST
Rel. Humidity: 100%
Dew Point: 28°F
Visibility: Less than 1/4 Miles
Pressure: 29.90 in.
Flight Rule: LIFR
Wind Data
3 MPH
080° East
Morning Fog on Today Today... Widespread dense fog, mainly before 8am. Otherwise, sunny, with a high near 60. South wind 5 to 9 mph.

Increasing Clouds on Tonight Tonight... Increasing clouds, with a low around 44. South wind 7 to 10 mph, with gusts as high as 20 mph.

100% chance of rain Thursday Thursday... Rain. High near 60. Southeast wind 10 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 100%.

50% chance of rain Thursday Night Thursday Night... A 50 percent chance of rain before midnight. Mostly cloudy, with a low around 43. South wind 8 to 11 mph becoming west after midnight. Winds could gust as high as 23 mph.

Mostly Cloudy on Friday Friday... Mostly cloudy, with a high near 49. West wind 6 to 8 mph becoming north in the afternoon.

50% chance of rain Friday Night Friday Night... A 50 percent chance of rain. Mostly cloudy, with a low around 34.

30% chance of rain & snow Saturday Saturday... A chance of rain and snow before noon, then a chance of snow. Partly sunny, with a high near 41. Chance of precipitation is 30%.

Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 22.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 32.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 22.

Sunny on Monday Monday... Sunny, with a high near 44.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 30.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 47.

Current Radar Image


Sun Almanac for Northbrook, Illinois
Sunrise: 07:27 AM
Sunset: 4:56 PM
Civil Sunrise:06:57 AM
Civil Sunset: 5:27 PM
Nautical Sunrise: 06:23 AM
Nautical Sunset: 6:00 PM
Astro Sunrise: 05:51 AM
Astro Sunset: 6:33 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.