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.

A Few Clouds

62°F

17°C

Humidity 100%
Wind Speed S 3 mph
Barometer 29.90 in (1012.3 mb)
Dewpoint 62°F (17°C)
Visibility 7.00 mi
Last update 25 Jun 2:52 am CDT
Extended Forecast for

Mount Prospect IL

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 62. West southwest wind around 5 mph.

    Low: 62 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 78. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 58. North wind around 5 mph becoming east northeast in the evening. Winds could gust as high as 10 mph.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers, mainly between 11am and 1pm. Mostly cloudy, with a high near 72. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 72 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 59. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 59 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: Partly sunny, with a high near 87.

    High: 87 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 62. West southwest wind around 5 mph.
Thursday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 78. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday Night
Mostly cloudy, with a low around 58. North wind around 5 mph becoming east northeast in the evening. Winds could gust as high as 10 mph.
Friday
A 30 percent chance of showers, mainly between 11am and 1pm. Mostly cloudy, with a high near 72. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
Mostly cloudy, with a low around 59. Northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64.
Sunday
Partly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 75.
Monday
Mostly sunny and hot, with a high near 96.
Monday Night
Mostly clear, with a low around 79.
Tuesday
Mostly sunny and hot, with a high near 97.
Tuesday Night
Mostly clear, with a low around 78.
Wednesday
Mostly sunny and hot, with a high near 97.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Prospect IL
 42.06°N 87.93°W
Last Update:
3:01 am CDT Jun 25, 2026
Forecast Valid:
3am CDT Jun 25, 2026-6pm CDT Jul 1, 2026
 
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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