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Northbrook, Illinois Weather Forecast
Northbrook, Illinois Weather
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Weather Forecast for Northbrook, Illinois : Adams County
Issued: 3:16 pm CST Jan 18, 2026 Latitude: 39.9586572 Longitude: -91.3757047 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight M.L.King Day Tuesday Wednesday Thursday Friday Saturday Sunday
20% chance of snow on This Afternoon 20% chance of snow on Tonight Sunny on M.L.King Day Mostly Sunny on Tuesday Sunny on Wednesday Mostly Sunny on Thursday 20% chance of snow on Friday 30% chance of snow on Saturday Partly Sunny on Sunday
High: 29°F Low: 6 °F High: 18°F High: 33°F High: 39°F High: 32°F High: 30°F High: 16°F High: 15°F
Low: 12°F Low: 26°F Low: 18°F Low: 19°F Low: 9°F Low: 1°F  
Snow Snow Sunny Mostly Sunny Sunny Mostly Sunny Snow Snow Partly Sunny
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Current Conditions at
QUINCY - (KUIN)
25°
Feels like 11°F
Cloudy
as of 2:54 PM CST
Rel. Humidity: 45%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: VFR
Wind Data
17 MPH
210° Southwest
Cloud Level(s): Solid Overcast at 7500ft
Current Conditions at
KEOKUK MUNICIPAL - (KEOK)
25°
Feels like 13°F
Partly Cloudy
as of 3:35 PM CST
Rel. Humidity: 41%
Dew Point: 5°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: VFR
Wind Data
12 MPH
230° Southwest
Cloud Level(s): Few at 4300ft, Few at 5500ft, Scattered at 7500ft
Current Conditions at
FORT MADISON - (KFSW)
23°
Feels like 12°F
Cloudy
as of 3:35 PM CST
Rel. Humidity: 49%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 29.92 in.
Flight Rule: VFR
Wind Data
10 MPH
190° South
Cloud Level(s): Few at 4200ft, Broken at 6500ft, Solid Overcast at 8000ft
20% chance of snow This Afternoon This Afternoon... A chance of flurries. Cloudy, with a high near 29. West wind around 15 mph, with gusts as high as 26 mph.

20% chance of snow Tonight Tonight... A chance of flurries before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 6. Wind chill values as low as -10. Blustery, with a northwest wind 16 to 23 mph, with gusts as high as 37 mph.

Sunny on M.L.King Day M.L.King Day... Sunny and cold, with a high near 18. Wind chill values as low as -10. Northwest wind 8 to 17 mph, with gusts as high as 29 mph.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 12. Southwest wind 5 to 7 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 33. Southwest wind around 6 mph becoming south in the afternoon.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 26.

Sunny on Wednesday Wednesday... Sunny, with a high near 39.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 18.

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

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 19.

20% chance of snow Friday Friday... A 20 percent chance of snow. Mostly cloudy, with a high near 30.

20% chance of snow Friday Night Friday Night... A 20 percent chance of snow. Mostly cloudy, with a low around 9.

30% chance of snow Saturday Saturday... A 30 percent chance of snow. Mostly cloudy and cold, with a high near 16.

30% chance of snow Saturday Night Saturday Night... A 30 percent chance of snow. Mostly cloudy, with a low around 1.

Partly Sunny on Sunday Sunday... Partly sunny and cold, with a high near 15.

Current Radar Image


Sun Almanac for Northbrook, Illinois
Sunrise: 07:24 AM
Sunset: 5:08 PM
Civil Sunrise:06:54 AM
Civil Sunset: 5:38 PM
Nautical Sunrise: 06:21 AM
Nautical Sunset: 6:11 PM
Astro Sunrise: 05:49 AM
Astro Sunset: 6:43 PM
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