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

52°F

11°C

Humidity 49%
Wind Speed SW 13 G 22 mph
Barometer 29.94 in (1014.0 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 3 May 8:52 am CDT
Extended Forecast for

Mount Prospect IL

  • Today

    Today: Scattered showers, mainly before noon. Mostly cloudy, then gradually becoming sunny, with a high near 67. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.

    High: 67 °F

    Scattered
    Showers and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 46. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 46 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers after 4pm. Sunny, with a high near 77. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 77 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers after 1am. Increasing clouds, with a low around 47. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    Low: 47 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A 50 percent chance of showers. Cloudy, with a high near 54. North northeast wind around 10 mph, with gusts as high as 15 mph.

    High: 54 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers after 1pm. Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Scattered showers, mainly before noon. Mostly cloudy, then gradually becoming sunny, with a high near 67. Breezy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.
Tonight
Mostly clear, with a low around 46. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Monday
A 20 percent chance of showers after 4pm. Sunny, with a high near 77. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
A slight chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then a chance of showers after 1am. Increasing clouds, with a low around 47. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Tuesday
A 50 percent chance of showers. Cloudy, with a high near 54. North northeast wind around 10 mph, with gusts as high as 15 mph.
Tuesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 40.
Wednesday
Partly sunny, with a high near 57.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
A chance of showers after 1pm. Partly sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 41.
Friday
Mostly sunny, with a high near 60.
Friday Night
Mostly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 65.
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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:
8:56 am CDT May 3, 2026
Forecast Valid:
9am CDT May 3, 2026-6pm CDT May 9, 2026
 
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Additional Resources

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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