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August 11, 2026: Powerful Derecho Produces Widespread Wind Damage and Tornadoes Across Northern Illinois and Northwest Indiana

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

A Few Clouds

64°F

18°C

Humidity	81%
Wind Speed	N 6 mph
Barometer	29.98 in (1014.7 mb)
Dewpoint	58°F (14°C)
Visibility	10.00 mi
Last update	20 Aug 1:52 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Northbrook IL

Overnight
Low: 64 °F
Partly Cloudy
Thursday
High: 78 °F
Sunny
Thursday Night
Low: 61 °F
Partly Cloudy
Friday
High: 81 °F
Chance
Showers then
Chance
T-storms
Friday Night
Low: 64 °F
Chance
T-storms
Saturday
High: 77 °F
Mostly Sunny
Saturday Night
Low: 62 °F
Mostly Clear
Sunday
High: 74 °F
Sunny
Sunday Night
Low: 60 °F
Partly Cloudy

Detailed Forecast

Overnight

Partly cloudy, with a low around 64. North northeast wind around 5 mph.

Thursday

Sunny, with a high near 78. North northeast wind around 5 mph.

Thursday Night

Partly cloudy, with a low around 61. East northeast wind around 5 mph becoming calm.

Friday

A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 81. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

Friday Night

A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64. Southwest wind around 5 mph, with gusts as high as 10 mph.

Saturday

Mostly sunny, with a high near 77.

Saturday Night

Mostly clear, with a low around 62.

Sunday

Sunny, with a high near 74.

Sunday Night

Partly cloudy, with a low around 60.

Monday

Mostly sunny, with a high near 77.

Monday Night

Partly cloudy, with a low around 61.