Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

66°F

19°C

Humidity 63%
Wind Speed W 9 mph
Barometer 30.14 in (1020.2 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 4 Oct 10:51 am CDT
Extended Forecast for

Winthrop Harbor IL

  • Today

    Today: Sunny, with a high near 70. Northwest wind around 15 mph, with gusts as high as 20 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 46. Northwest wind around 10 mph, with gusts as high as 15 mph.

    Low: 46 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 61. Northwest wind around 5 mph becoming east in the afternoon.

    High: 61 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46. South wind around 5 mph, with gusts as high as 10 mph.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 68. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 68 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 70. Northwest wind around 15 mph, with gusts as high as 20 mph.
Tonight
Clear, with a low around 46. Northwest wind around 10 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 61. Northwest wind around 5 mph becoming east in the afternoon.
Monday Night
Mostly clear, with a low around 46. South wind around 5 mph, with gusts as high as 10 mph.
Tuesday
Sunny, with a high near 68. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 49.
Friday
Mostly sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 51.
Saturday
Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor IL
 42.47°N 87.84°W
10:11 am CDT Oct 4, 2026
11am CDT Oct 4, 2026-6pm CDT Oct 10, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database