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

46°F

8°C

Humidity 46%
Wind Speed NW 20 G 30 mph
Barometer 29.99 in (1015.8 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 18 Apr 6:52 pm CDT
Extended Forecast for

Prospect Heights IL

Freeze Watch April 20, 12:00am until April 20, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Tonight

    Tonight: Areas of frost after 4am. Otherwise, mostly clear, with a low around 36. Breezy, with a west southwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

    Low: 36 °F

    Mostly Clear
    and Breezy
    then Areas
    Frost

  • Sunday

    Sunday: A slight chance of rain and snow showers before 8am, then a chance of rain showers. Areas of frost before 7am. Otherwise, increasing clouds, with a high near 50. West southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%.

    High: 50 °F

    Slight Chance
    Rain/Snow
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 4am. Otherwise, partly cloudy, with a low around 32. Northwest wind 5 to 10 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.

    Low: 32 °F

    Partly Cloudy
    then Frost

  • Monday

    Monday: Widespread frost before 8am. Otherwise, sunny, with a high near 52. Light and variable wind becoming south southeast 5 to 10 mph in the morning.

    High: 52 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
Areas of frost after 4am. Otherwise, mostly clear, with a low around 36. Breezy, with a west southwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Sunday
A slight chance of rain and snow showers before 8am, then a chance of rain showers. Areas of frost before 7am. Otherwise, increasing clouds, with a high near 50. West southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%.
Sunday Night
Widespread frost, mainly after 4am. Otherwise, partly cloudy, with a low around 32. Northwest wind 5 to 10 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 52. Light and variable wind becoming south southeast 5 to 10 mph in the morning.
Monday Night
Mostly cloudy, with a low around 43. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 60.
Friday
A chance of showers. Mostly cloudy, with a high near 72.
Friday Night
A chance of showers. Mostly cloudy, with a low around 45.
Saturday
Partly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Prospect Heights IL
 42.09°N 87.92°W
Last Update:
7:01 pm CDT Apr 18, 2026
Forecast Valid:
7pm CDT Apr 18, 2026-6pm CDT Apr 25, 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