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

67°F

19°C

Humidity 61%
Wind Speed S 7 mph
Barometer 29.79 in (1008.4 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 16 May 1:52 am CDT
Extended Forecast for

Deer Park IL

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Low around 60. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 83. West wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.

    High: 83 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 60. South southwest wind around 5 mph becoming east southeast after midnight.

    Low: 60 °F

    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly before 9am. Partly sunny, with a high near 84. Breezy, with an east wind 10 to 15 mph becoming south 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 84 °F

    Chance
    Showers then
    Partly Sunny
    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

  • Monday

    Monday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 84. Breezy. Chance of precipitation is 80%.

    High: 84 °F

    Breezy.
    Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Breezy.

    High: 82 °F

    Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of showers before 1am. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance
    Showers

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 60. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 83. West wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 60. South southwest wind around 5 mph becoming east southeast after midnight.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before 9am. Partly sunny, with a high near 84. Breezy, with an east wind 10 to 15 mph becoming south 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 and possibly a thunderstorm after 1pm. High near 84. Breezy. Chance of precipitation is 80%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Breezy.
Tuesday Night
A chance of showers before 1am. Mostly cloudy, with a low around 51.
Wednesday
Partly sunny, with a high near 65.
Wednesday Night
Mostly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Deer Park IL
 42.16°N 88.1°W
Last Update:
1:21 am CDT May 16, 2026
Forecast Valid:
2am CDT May 16, 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