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

76°F

24°C

Humidity 60%
Wind Speed NE 9 mph
Barometer 30.13 in (1019.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 6 Sep 12:52 pm CDT
Extended Forecast for

Mount Prospect IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 79. East northeast wind around 10 mph.

    High: 79 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 62. Northeast wind around 5 mph.

    Low: 62 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 79. East wind 5 to 10 mph.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63. Southeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 86. South wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 86 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 71. Chance of precipitation is 50%.

    Low: 71 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.

    High: 86 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 79. East northeast wind around 10 mph.
Tonight
Partly cloudy, with a low around 62. Northeast wind around 5 mph.
Labor Day
Mostly sunny, with a high near 79. East wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 63. Southeast wind around 5 mph, with gusts as high as 10 mph.
Tuesday
Partly sunny, with a high near 86. South wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 71. Chance of precipitation is 50%.
Wednesday
Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Prospect IL
 42.06°N 87.93°W
Last Update:
12:11 pm CDT Sep 6, 2026
Forecast Valid:
1pm CDT Sep 6, 2026-6pm CDT Sep 12, 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