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.

Fair

81°F

27°C

Humidity 61%
Wind Speed W 6 mph
Barometer 29.90 in (1012.1 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 9 Jul 9:52 am CDT
Extended Forecast for

Mount Prospect IL

  • Today

    Today: Scattered showers and thunderstorms. Mostly cloudy, with a high near 83. West southwest wind around 10 mph. Chance of precipitation is 30%.

    High: 83 °F

    Scattered
    Showers then
    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before midnight. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 66. West northwest wind 5 to 10 mph becoming east northeast in the evening. Chance of precipitation is 50%.

    Low: 66 °F

    Scattered
    T-storms then
    Isolated
    T-storms and
    Patchy Fog

  • Friday

    Friday: Areas of fog before 8am. Otherwise, mostly cloudy, with a high near 80. Northeast wind 5 to 10 mph.

    High: 80 °F

    Areas Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 65. Northeast wind 5 to 10 mph.

    Low: 65 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 83. Northeast wind 5 to 10 mph.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Today
Scattered showers and thunderstorms. Mostly cloudy, with a high near 83. West southwest wind around 10 mph. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms, mainly before midnight. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 66. West northwest wind 5 to 10 mph becoming east northeast in the evening. Chance of precipitation is 50%.
Friday
Areas of fog before 8am. Otherwise, mostly cloudy, with a high near 80. Northeast wind 5 to 10 mph.
Friday Night
Mostly cloudy, with a low around 65. Northeast wind 5 to 10 mph.
Saturday
Mostly sunny, with a high near 83. Northeast wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 67.
Sunday
Sunny, with a high near 86.
Sunday Night
Mostly clear, with a low around 69.
Monday
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 72.
Tuesday
Sunny, with a high near 90.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Prospect IL
 42.06°N 87.96°W
Last Update:
9:41 am CDT Jul 9, 2026
Forecast Valid:
10am CDT Jul 9, 2026-6pm CDT Jul 15, 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