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

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Fair

40°F

4°C

Humidity 86%
Wind Speed NA
Barometer 29.95 in (1014.5 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 21 Mar 4:52 am CDT
Extended Forecast for

Prospect Heights IL

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 76. Southeast wind 5 to 10 mph becoming south southwest 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 76 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 41. Southwest wind 5 to 15 mph becoming north northeast after midnight. Winds could gust as high as 25 mph.

    Low: 41 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of rain, mainly between 10am and 4pm. Mostly cloudy, with a temperature falling to around 39 by 5pm. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 41 °F⇓

    Chance Rain
    and Breezy

  • Sunday Night

    Sunday Night: A 10 percent chance of rain before 7pm. Mostly cloudy, with a low around 30. North wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 30 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 44. North wind around 5 mph, with gusts as high as 10 mph.

    High: 44 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 76. Southeast wind 5 to 10 mph becoming south southwest 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Tonight
Partly cloudy, with a low around 41. Southwest wind 5 to 15 mph becoming north northeast after midnight. Winds could gust as high as 25 mph.
Sunday
A 40 percent chance of rain, mainly between 10am and 4pm. Mostly cloudy, with a temperature falling to around 39 by 5pm. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
A 10 percent chance of rain before 7pm. Mostly cloudy, with a low around 30. North wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 44. North wind around 5 mph, with gusts as high as 10 mph.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
Mostly cloudy, with a high near 56.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Mostly cloudy, with a high near 52.
Wednesday Night
Mostly cloudy, with a low around 44.
Thursday
A chance of showers. Mostly cloudy, with a high near 61.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
Partly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prospect Heights IL
 42.11°N 87.92°W
Last Update:
4:25 am CDT Mar 21, 2026
Forecast Valid:
5am CDT Mar 21, 2026-6pm CDT Mar 27, 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