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

74°F

23°C

Humidity 45%
Wind Speed S 14 mph
Barometer 29.83 in (1009.9 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 15 May 6:52 pm CDT
Extended Forecast for

Deer Park IL

  • Tonight

    Tonight: A chance of showers and thunderstorms between 1am and 2am, then periods of showers and possibly a thunderstorm after 2am. Low around 61. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Mostly Clear
    then Showers

  • Saturday

    Saturday: Scattered showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 83. South southeast wind around 10 mph becoming west in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    High: 83 °F

    Scattered
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 11pm. Mostly cloudy, with a low around 60. South wind around 5 mph. Chance of precipitation is 20%.

    Low: 60 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 85. Breezy, with a southeast wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 85 °F

    Chance
    Showers then
    Slight Chance
    T-storms and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 67. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 67 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Breezy. Chance of precipitation is 70%.

    High: 84 °F

    Breezy.
    Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. Breezy.

    High: 79 °F

    Breezy.
    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers before 1am. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms between 1am and 2am, then periods of showers and possibly a thunderstorm after 2am. Low around 61. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Scattered showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 83. South southeast wind around 10 mph becoming west in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Saturday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 11pm. Mostly cloudy, with a low around 60. South wind around 5 mph. Chance of precipitation is 20%.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before 10am. Partly sunny, with a high near 85. Breezy, with a southeast wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 67. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Breezy. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. Breezy.
Tuesday Night
A chance of showers before 1am. Mostly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Deer Park IL
 42.16°N 88.07°W
Last Update:
1:45 pm CDT May 15, 2026
Forecast Valid:
7pm CDT May 15, 2026-6pm CDT May 22, 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