National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

A Few Clouds

55°F

13°C

Humidity 59%
Wind Speed NE 14 mph
Barometer 30.27 in (1025.1 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 21 May 3:52 pm CDT
Extended Forecast for

Mount Prospect IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 59. Northeast wind around 15 mph, with gusts as high as 20 mph.

    High: 59 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 66. East northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 66 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of showers, mainly after 4am. Cloudy, with a low around 52. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 10am. Mostly cloudy, with a high near 70. North northeast wind 5 to 10 mph.

    High: 70 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Mostly cloudy, with a high near 78. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 59. Northeast wind around 15 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 49. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Mostly cloudy, with a high near 66. East northeast wind around 15 mph, with gusts as high as 25 mph.
Friday Night
A 30 percent chance of showers, mainly after 4am. Cloudy, with a low around 52. East northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
A 30 percent chance of showers, mainly before 10am. Mostly cloudy, with a high near 70. North northeast wind 5 to 10 mph.
Saturday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 54.
Sunday
A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Mostly cloudy, with a high near 78. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 56.
Memorial Day
Mostly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 61.
Wednesday
A chance of showers. Partly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Prospect IL
 42.06°N 87.93°W
Last Update:
2:46 pm CDT May 21, 2026
Forecast Valid:
3pm CDT May 21, 2026-6pm CDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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