Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Overcast

77°F

25°C

Humidity 77%
Wind Speed W 10 G 24 mph
Barometer 30.00 in (1015.4 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 9 Sep 2:52 pm CDT
Extended Forecast for

Deer Park IL

  • This Afternoon

    This Afternoon: Cloudy, with a high near 78. West wind around 10 mph.

    High: 78 °F

    Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 62. West wind around 5 mph.

    Low: 62 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 78. North wind around 5 mph.

    High: 78 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79. Light south wind increasing to 5 to 10 mph in the morning.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 78. West wind around 10 mph.
Tonight
Mostly cloudy, with a low around 62. West wind around 5 mph.
Thursday
Partly sunny, with a high near 78. North wind around 5 mph.
Thursday Night
Mostly clear, with a low around 56. Calm wind.
Friday
Sunny, with a high near 79. Light south wind increasing to 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Mostly cloudy, with a low around 60.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
A chance of showers after 1am. Mostly cloudy, with a low around 64.
Monday
A chance of showers. Partly sunny, with a high near 85.
Monday Night
Showers likely. Mostly cloudy, with a low around 67.
Tuesday
A chance of showers. Mostly cloudy, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Deer Park IL
 42.16°N 88.1°W
2:31 pm CDT Sep 9, 2026
3pm CDT Sep 9, 2026-6pm CDT Sep 15, 2026
 
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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