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.

Mostly Cloudy

70°F

21°C

Humidity 100%
Wind Speed NA
Barometer 30.03 in (1016.4 mb)
Dewpoint 70°F (21°C)
Visibility 7.00 mi
Last update 14 Aug 3:52 am CDT
Extended Forecast for

Prospect Heights IL

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms. Cloudy, with a low around 68. East northeast wind around 5 mph, with gusts as high as 15 mph.

    Low: 68 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 11am. Mostly cloudy, with a high near 79. East wind around 10 mph, with gusts as high as 15 mph.

    High: 79 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 69. East northeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 83. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%.

    High: 83 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. West wind 5 to 10 mph. Chance of precipitation is 60%.

    Low: 72 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Cloudy, with a low around 68. East northeast wind around 5 mph, with gusts as high as 15 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 11am. Mostly cloudy, with a high near 79. East wind around 10 mph, with gusts as high as 15 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 69. East northeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and possibly a thunderstorm. High near 83. Southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. West wind 5 to 10 mph. Chance of precipitation is 60%.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
Sunday Night
Partly cloudy, with a low around 67.
Monday
Mostly sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 66.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Thursday
Partly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prospect Heights IL
 42.09°N 87.92°W
Last Update:
3:50 am CDT Aug 14, 2026
Forecast Valid:
4am CDT Aug 14, 2026-6pm CDT Aug 20, 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