National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

A Few Clouds

42°F

6°C

Humidity 49%
Wind Speed W 6 mph
Barometer 30.07 in (1018.6 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 18 Apr 11:52 pm CDT
Extended Forecast for

Northbrook IL

Freeze Watch April 20, 12:00am until April 20, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Overnight

    Overnight: Areas of frost after 4am. Otherwise, mostly clear, with a low around 36. West southwest wind 5 to 10 mph.

    Low: 36 °F

    Areas Frost

  • Sunday

    Sunday: A slight chance of rain and snow showers before 9am, then a chance of rain showers. Areas of frost before 7am. Otherwise, increasing clouds, with a high near 50. West southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%.

    High: 50 °F

    Slight Chance
    Rain/Snow
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 5am. Otherwise, partly cloudy, with a low around 33. Northwest wind 5 to 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph.

    Low: 33 °F

    Partly Cloudy
    then Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 50. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 50 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Overnight
Areas of frost after 4am. Otherwise, mostly clear, with a low around 36. West southwest wind 5 to 10 mph.
Sunday
A slight chance of rain and snow showers before 9am, then a chance of rain showers. Areas of frost before 7am. Otherwise, increasing clouds, with a high near 50. West southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%.
Sunday Night
Widespread frost, mainly after 5am. Otherwise, partly cloudy, with a low around 33. Northwest wind 5 to 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 50. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 43. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 59.
Friday
A chance of showers. Mostly cloudy, with a high near 71.
Friday Night
A chance of showers. Mostly cloudy, with a low around 45.
Saturday
Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Northbrook IL
 42.13°N 87.83°W
Last Update:
9:30 pm CDT Apr 18, 2026
Forecast Valid:
12am CDT Apr 19, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation