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

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

A Few Clouds

75°F

24°C

Humidity 62%
Wind Speed SE 7 mph
Barometer 30.00 in (1014.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 17 Aug 5:51 pm CDT
Extended Forecast for

Grandwood Park IL

  • Tonight

    Tonight: Mostly clear, with a low around 61. North northwest wind around 5 mph becoming south in the evening.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 80 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers. Mostly cloudy, with a low around 63. West northwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. North northeast wind around 5 mph.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59. East northeast wind around 5 mph becoming calm.

    Low: 59 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers after 1pm. Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers. Partly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 61. North northwest wind around 5 mph becoming south in the evening.
Tuesday
A 50 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. West southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers. Mostly cloudy, with a low around 63. West northwest wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Mostly sunny, with a high near 77. North northeast wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 59. East northeast wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 59.
Friday
A chance of showers after 1pm. Mostly sunny, with a high near 79.
Friday Night
A chance of showers. Partly cloudy, with a low around 61.
Saturday
A chance of showers after 1pm. Mostly sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grandwood Park IL
 42.39°N 87.99°W
Last Update:
2:46 pm CDT Aug 17, 2026
Forecast Valid:
6pm CDT Aug 17, 2026-6pm CDT Aug 24, 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