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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 4:31 am CST Nov 21, 2025 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

MouseOver for Detail Forecast
Overnight Friday Saturday Sunday Monday Tuesday Wednesday Thanksgiving Day
30% chance of rain on Overnight 90% chance of rain on Friday Sunny on Saturday Sunny on Sunday 70% chance of rain on Monday 20% chance of rain on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thanksgiving Day
Low: 48°F High: 50°F High: 56°F High: 60°F High: 58°F High: 59°F High: 45°F High: 42°F
Low: 35°F Low: 38°F Low: 46°F Low: 49°F Low: 34°F Low: 26°F  
Rain Rain Sunny Sunny Rain Rain Mostly Sunny Mostly Sunny
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Current Conditions at
QUINCY - (KUIN)
48°
Cloudy
Fog
as of 4:54 AM CST
Rel. Humidity: 100%
Dew Point: 48°F
Visibility: 1/2 Miles
Pressure: 30.01 in.
Flight Rule: IFR
Wind Data
7 MPH
060° Northeast
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
46°
Cloudy
Mist
as of 4:55 AM CST
Rel. Humidity: 100%
Dew Point: 46°F
Visibility: 1/2 Miles
Pressure: 30.03 in.
Flight Rule: LIFR
Wind Data
6 MPH
050° Northeast
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
PITTSFIELD - (KPPQ)
50°
Cloudy
as of 4:55 AM CST
Rel. Humidity: 100%
Dew Point: 50°F
Visibility: 1/4 Miles
Pressure: 30.02 in.
Flight Rule: LIFR
Wind Data
7 MPH
060° Northeast
Cloud Level(s): Solid Overcast at 200ft
Current Conditions at
FORT MADISON - (KFSW)
45°
Feels like 39°F
Cloudy
Mist
as of 4:55 AM CST
Rel. Humidity: 100%
Dew Point: 45°F
Visibility: 4 Miles
Pressure: 30.04 in.
Flight Rule: IFR
Wind Data
9 MPH
010° North
Cloud Level(s): Solid Overcast at 500ft
30% chance of rain Overnight Overnight... A 30 percent chance of rain. Areas of dense fog. Otherwise, cloudy, with a low around 48. Northeast wind around 7 mph.

90% chance of rain Friday Friday... Rain. Patchy dense fog between 3pm and 4pm. High near 50. Northeast wind 8 to 10 mph. Chance of precipitation is 90%.

70% chance of rain Friday Night Friday Night... Rain likely, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 35. North wind 5 to 10 mph. Chance of precipitation is 70%.

Sunny on Saturday Saturday... Sunny, with a high near 56. Calm wind becoming southwest around 5 mph in the afternoon.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 38. Southwest wind 3 to 5 mph.

Sunny on Sunday Sunday... Sunny, with a high near 60.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 46.

70% chance of rain Monday Monday... Rain likely, mainly after noon. Cloudy, with a high near 58. Chance of precipitation is 70%.

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 59.

Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 34.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 45.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 26.

Mostly Sunny on Thanksgiving Day Thanksgiving Day... 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.