National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Fair

34°F

1°C

Humidity 52%
Wind Speed NW 13 G 21 mph
Barometer 30.03 in (1017.6 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 13 Mar 9:52 pm CDT
Extended Forecast for

Deer Park IL

  • Tonight

    Tonight: Increasing clouds, with a low around 29. Northwest wind 5 to 10 mph becoming light north northwest after midnight. Winds could gust as high as 20 mph.

    Low: 29 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 20 percent chance of snow after 1pm. Cloudy, with a high near 38. Light and variable wind becoming east southeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph.

    High: 38 °F

    Cloudy then
    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: A chance of snow before 10pm, then a chance of rain. Cloudy, with a temperature falling to near 34 by 8pm, then rising to around 39 during the remainder of the night. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 34 °F⇑

    Chance
    Rain/Snow
    then Chance
    Rain

  • Sunday

    Sunday: Rain likely before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain after 4pm. High near 60. Breezy, with a south wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 80%.

    High: 60 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Rain before 1am, then snow, possibly mixed with rain between 1am and 4am, then snow after 4am. Patchy blowing snow after 3am. Low around 22. Windy, with a south southwest wind 25 to 30 mph becoming northwest after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 100%.

    Low: 22 °F

    Rain and
    Breezy then
    Rain/Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: Snow likely, mainly before 1pm. Areas of blowing snow. Cloudy, with a high near 24. Windy. Chance of precipitation is 70%.

    High: 24 °F

    Snow Likely
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: A 20 percent chance of snow showers before 1am. Mostly cloudy, with a low around 8. Blustery.

    Low: 8 °F

    Slight Chance
    Snow Showers
    and Blustery

  • Tuesday

    Tuesday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow showers. Mostly cloudy, with a low around 17.

    Low: 17 °F

    Chance Snow
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 29. Northwest wind 5 to 10 mph becoming light north northwest after midnight. Winds could gust as high as 20 mph.
Saturday
A 20 percent chance of snow after 1pm. Cloudy, with a high near 38. Light and variable wind becoming east southeast 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Saturday Night
A chance of snow before 10pm, then a chance of rain. Cloudy, with a temperature falling to near 34 by 8pm, then rising to around 39 during the remainder of the night. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Sunday
Rain likely before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain after 4pm. High near 60. Breezy, with a south wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 80%.
Sunday Night
Rain before 1am, then snow, possibly mixed with rain between 1am and 4am, then snow after 4am. Patchy blowing snow after 3am. Low around 22. Windy, with a south southwest wind 25 to 30 mph becoming northwest after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 100%.
Monday
Snow likely, mainly before 1pm. Areas of blowing snow. Cloudy, with a high near 24. Windy. Chance of precipitation is 70%.
Monday Night
A 20 percent chance of snow showers before 1am. Mostly cloudy, with a low around 8. Blustery.
Tuesday
Mostly sunny, with a high near 24.
Tuesday Night
A chance of snow showers. Mostly cloudy, with a low around 17.
Wednesday
Partly sunny, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 32.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Partly cloudy, with a low around 34.
Friday
Partly sunny, with a high near 50.
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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:
9:41 pm CDT Mar 13, 2026
Forecast Valid:
10pm CDT Mar 13, 2026-6pm CDT Mar 20, 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