Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

67°F

19°C

Humidity 81%
Wind Speed Vrbl 5 mph
Barometer 29.93 in (1012.4 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 27 Aug 12:51 am CDT
Extended Forecast for

Grandwood Park IL

  • Overnight

    Overnight: Mostly clear, with a low around 61. West northwest wind around 5 mph.

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers between 3pm and 4pm.  Sunny, with a high near 80. Northwest wind 5 to 10 mph becoming northeast in the afternoon.  Chance of precipitation is 20%.

    High: 80 °F

    Sunny then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. East wind around 5 mph becoming calm  in the evening.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 79. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. South southwest wind around 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 81.

    High: 81 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 1pm.  Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers after 1am.  Mostly cloudy, with a low around 70.

    Low: 70 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 61. West northwest wind around 5 mph.
Thursday
A slight chance of showers between 3pm and 4pm. Sunny, with a high near 80. Northwest wind 5 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 59. East wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 79. Calm wind becoming south southeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 61. South southwest wind around 5 mph.
Saturday
Partly sunny, with a high near 81.
Saturday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Sunday
A chance of showers before 1pm. Partly sunny, with a high near 86.
Sunday Night
A chance of showers after 1am. Mostly cloudy, with a low around 70.
Monday
Partly sunny, with a high near 89.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Mostly cloudy, with a low around 68.
Wednesday
A chance of showers. Partly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Grandwood Park IL
 42.39°N 87.99°W
7:41 pm CDT Aug 26, 2026
1am CDT Aug 27, 2026-6pm CDT Sep 2, 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