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

73°F

23°C

Humidity 48%
Wind Speed S 12 mph
Barometer 30.04 in (1016.7 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 5 Oct 10:52 pm CDT
Extended Forecast for

Mount Prospect IL

  • Tonight

    Tonight: Mostly clear, with a low around 67. South southwest wind around 10 mph.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. South southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph.

    High: 86 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Low around 57. North wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 57 °F

    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 66. North wind around 10 mph, with gusts as high as 15 mph.

    High: 66 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. North wind around 5 mph, with gusts as high as 10 mph.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 67. South southwest wind around 10 mph.
Monday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. South southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Showers and possibly a thunderstorm. Low around 57. North wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday
A 30 percent chance of showers, mainly before 10am. Cloudy, then gradually becoming mostly sunny, with a high near 66. North wind around 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly clear, with a low around 48. North wind around 5 mph, with gusts as high as 10 mph.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 48.
Friday
Mostly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Prospect IL
 42.06°N 87.93°W
Last Update:
9:41 pm CDT Oct 5, 2025
Forecast Valid:
11pm CDT Oct 5, 2025-6pm CDT Oct 12, 2025
 
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