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.

Overcast

51°F

11°C

Humidity 69%
Wind Speed NE 15 mph
Barometer 30.32 in (1026.9 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 21 May 11:52 am CDT
Extended Forecast for

Mount Prospect IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 60. Northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 60 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 48 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 1pm. 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
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely. Cloudy, with a low around 52. East northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Low: 52 °F

    Showers
    Likely

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 70. North northeast wind around 10 mph, with gusts as high as 15 mph.

    High: 70 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers. Partly sunny, with a high near 77.

    High: 77 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 60. Northeast wind around 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 48. Northeast wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 66. East northeast wind around 15 mph, with gusts as high as 25 mph.
Friday Night
Showers likely. Cloudy, with a low around 52. East northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday
A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 70. North northeast wind around 10 mph, with gusts as high as 15 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 57.
Memorial Day
Mostly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Partly sunny, with a high near 82.
Tuesday Night
Mostly cloudy, with a low around 62.
Wednesday
Partly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Prospect IL
 42.06°N 87.96°W
Last Update:
10:11 am CDT May 21, 2026
Forecast Valid:
12pm CDT May 21, 2026-6pm CDT May 27, 2026
 
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