Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Partly Cloudy

79°F

26°C

Humidity 56%
Wind Speed NW 9 mph
Barometer 29.89 in (1011.7 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 26 Aug 6:52 pm CDT
Extended Forecast for

Prospect Heights IL

  • Tonight

    Tonight: Isolated showers between 8pm and 9pm.  Mostly clear, with a low around 64. West northwest wind 5 to 10 mph.  Chance of precipitation is 20%.

    Low: 64 °F

    Isolated
    Showers then
    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers between 3pm and 4pm.  Sunny, with a high near 81. Northwest wind 5 to 10 mph becoming north northeast in the afternoon.  Chance of precipitation is 20%.

    High: 81 °F

    Sunny then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61. East northeast wind around 5 mph becoming calm  in the evening.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63. Southeast wind around 5 mph.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 1am.  Mostly cloudy, with a low around 68.

    Low: 68 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 1am.  Mostly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Isolated showers between 8pm and 9pm. Mostly clear, with a low around 64. West northwest wind 5 to 10 mph. Chance of precipitation is 20%.
Thursday
A slight chance of showers between 3pm and 4pm. Sunny, with a high near 81. Northwest wind 5 to 10 mph becoming north northeast in the afternoon. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 61. East northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 81. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 63. Southeast wind around 5 mph.
Saturday
Partly sunny, with a high near 82.
Saturday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 68.
Sunday
Partly sunny, with a high near 88.
Sunday Night
A chance of showers after 1am. Mostly cloudy, with a low around 72.
Monday
A chance of showers before 1pm. Partly sunny, with a high near 90.
Monday Night
Mostly cloudy, with a low around 73.
Tuesday
Mostly sunny, with a high near 89.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
Partly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Prospect Heights IL
 42.11°N 87.92°W
7:41 pm CDT Aug 26, 2026
7pm CDT Aug 26, 2026-6pm CDT Sep 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database