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.

Partly Cloudy

78°F

26°C

Humidity 56%
Wind Speed S 20 G 31 mph
Barometer 29.82 in (1009.7 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 17 Apr 1:52 pm CDT
Extended Forecast for

Prospect Heights IL

Flood Watch April 17, 03:00pm until April 18, 05:00am
Click here for hazard details and duration
Flood Watch

  • This Afternoon

    This Afternoon: A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 80. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph.

    High: 80 °F

    Slight Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then showers likely. Low around 43. South southwest wind around 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 43 °F

    T-storms then
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers between 8am and 9am. Cloudy, then gradually becoming mostly sunny, with a steady temperature around 48. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 48 °F

    Breezy.
    Slight Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 50. West southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 50 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 2am. Otherwise, mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 8am. Otherwise, sunny, with a high near 54.

    High: 54 °F

    Areas Frost
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 10 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 80. Breezy, with a south wind around 20 mph, with gusts as high as 30 mph.
Tonight
Showers and thunderstorms before 1am, then showers likely. Low around 43. South southwest wind around 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday
A 20 percent chance of showers between 8am and 9am. Cloudy, then gradually becoming mostly sunny, with a steady temperature around 48. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 35. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 50. West southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Areas of frost after 2am. Otherwise, mostly clear, with a low around 33.
Monday
Areas of frost before 8am. Otherwise, sunny, with a high near 54.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prospect Heights IL
 42.09°N 87.92°W
Last Update:
1:41 pm CDT Apr 17, 2026
Forecast Valid:
2pm CDT Apr 17, 2026-6pm CDT Apr 23, 2026
 
Forecast Discussion
 
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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