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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 4:36 pm CST Nov 21, 2025 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

MouseOver for Detail Forecast
Tonight Saturday Sunday Monday Tuesday Wednesday Thanksgiving Day Friday
70% chance of rain on Tonight Morning Fog on Saturday Sunny on Sunday 80% chance of rain on Monday 20% chance of rain on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thanksgiving Day 20% chance of snow on Friday
Low: 36°F High: 56°F High: 59°F High: 57°F High: 58°F High: 45°F High: 43°F High: 42°F
Low: 39°F Low: 44°F Low: 49°F Low: 33°F Low: 29°F Low: 27°F  
Rain Morning Fog Sunny Rain Rain Mostly Sunny Mostly Sunny Snow
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Current Conditions at
QUINCY - (KUIN)
46°
Feels like 40°F
Cloudy
Mist
as of 5:54 PM CST
Rel. Humidity: 93%
Dew Point: 45°F
Visibility: 5 Miles
Pressure: 29.94 in.
Flight Rule: IFR
Wind Data
13 MPH
020° North
Cloud Level(s): Solid Overcast at 600ft
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
45°
Feels like 39°F
Cloudy
as of 6:35 PM CST
Rel. Humidity: 100%
Dew Point: 45°F
Visibility: 8 Miles
Pressure: 29.99 in.
Flight Rule: MVFR
Wind Data
9 MPH
020° North
Cloud Level(s): Broken at 1100ft, Solid Overcast at 6000ft
Current Conditions at
PITTSFIELD - (KPPQ)
48°
Feels like 44°F
Cloudy
as of 6:35 PM CST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 2 1/2 Miles
Pressure: 29.94 in.
Flight Rule: LIFR
Wind Data
9 MPH
030° Northeast
Cloud Level(s): Solid Overcast at 400ft
Current Conditions at
FORT MADISON - (KFSW)
45°
Feels like 39°F
Cloudy
Light Rain Mist
as of 6:35 PM CST
Rel. Humidity: 93%
Dew Point: 43°F
Visibility: 7 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
9 MPH
350° North
Cloud Level(s): Few at 6000ft, Solid Overcast at 7500ft
70% chance of rain Tonight Tonight... Rain likely, mainly before 10pm. Patchy fog before midnight, then patchy fog after 1am. Otherwise, mostly cloudy, with a low around 36. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Morning Fog on Saturday Saturday... Patchy fog before 9am. Otherwise, sunny, with a high near 56. Light and variable wind becoming southwest 5 to 8 mph in the afternoon.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 39. Southwest wind 5 to 7 mph becoming northwest after midnight.
Sunny on Sunday Sunday... Sunny, with a high near 59. Light and variable wind.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 44. Calm wind becoming southeast 5 to 7 mph after midnight.
80% chance of rain Monday Monday... Rain, mainly after noon. High near 57. Chance of precipitation is 80%.
70% chance of rain Monday Night Monday Night... Rain likely, mainly before midnight. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
20% chance of rain Tuesday Tuesday... A 20 percent chance of rain before noon. Partly sunny, with a high near 58.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 33.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 45.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 29.
Mostly Sunny on Thanksgiving Day Thanksgiving Day... Mostly sunny, with a high near 43.
20% chance of rain & snow Thursday Night Thursday Night... A slight chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 20%.
20% chance of snow Friday Friday... A 20 percent chance of snow. Mostly sunny, with a high near 42.
Current Radar Image


Sun Almanac for Northbrook, Illinois
Sunrise: 06:58 AM
Sunset: 4:45 PM
Civil Sunrise:06:29 AM
Civil Sunset: 5:14 PM
Nautical Sunrise: 05:56 AM
Nautical Sunset: 5:47 PM
Astro Sunrise: 05:23 AM
Astro Sunset: 6:20 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.