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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 5:11 pm CST Jan 4, 2026 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

MouseOver for Detail Forecast
Tonight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Increasing Clouds on Tonight Morning Fog on Monday Mostly Sunny on Tuesday Sunny on Wednesday 40% chance of rain on Thursday 30% chance of rain on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday
Low: 30°F High: 53°F High: 55°F High: 59°F High: 54°F High: 48°F High: 41°F High: 38°F
Low: 43°F Low: 35°F Low: 43°F Low: 40°F Low: 32°F Low: 22°F  
Increasing Clouds Morning Fog Mostly Sunny Sunny Rain Rain Mostly Sunny Mostly Sunny
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Current Conditions at
QUINCY - (KUIN)
36°
Feels like 27°F
Clear
as of 6:54 PM CST
Rel. Humidity: 69%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.94 in.
Flight Rule: VFR
Wind Data
12 MPH
170° South
Cloud Level(s): Clear
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
36°
Feels like 27°F
Clear
as of 7:35 PM CST
Rel. Humidity: 69%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.90 in.
Flight Rule: VFR
Wind Data
12 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
FORT MADISON - (KFSW)
34°
Feels like 24°F
Clear
as of 7:35 PM CST
Rel. Humidity: 80%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.89 in.
Flight Rule: VFR
Wind Data
14 MPH
130° Southeast
Cloud Level(s): Clear
Increasing Clouds on Tonight Tonight... Increasing clouds, with a low around 30. South wind 7 to 13 mph, with gusts as high as 21 mph.

Morning Fog on Monday Monday... Patchy fog between 7am and 10am. Otherwise, mostly cloudy, with a high near 53. Southwest wind around 7 mph becoming southeast in the afternoon.

Partly Cloudy on Monday Night Monday Night... Cloudy, then gradually becoming partly cloudy, with a low around 43. Southeast wind 6 to 10 mph becoming southwest after midnight.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 55. West wind 6 to 8 mph.

Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 35. West wind 3 to 5 mph.

Sunny on Wednesday Wednesday... Sunny, with a high near 59.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 43.

40% chance of rain Thursday Thursday... A 40 percent chance of rain, mainly after noon. Mostly cloudy, with a high near 54.

50% chance of rain Thursday Night Thursday Night... A 50 percent chance of rain. Mostly cloudy, with a low around 40.

30% chance of rain Friday Friday... A 30 percent chance of rain. Partly sunny, with a high near 48.

20% chance of rain Friday Night Friday Night... A 20 percent chance of rain. Mostly cloudy, with a low around 32.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 41.

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

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 38.

Current Radar Image


Sun Almanac for Northbrook, Illinois
Sunrise: 07:27 AM
Sunset: 4:54 PM
Civil Sunrise:06:57 AM
Civil Sunset: 5:24 PM
Nautical Sunrise: 06:23 AM
Nautical Sunset: 5:58 PM
Astro Sunrise: 05:51 AM
Astro Sunset: 6:31 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.