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.

Fair

43°F

6°C

Humidity 82%
Wind Speed W 3 mph
Barometer 30.03 in (1017.2 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 10 Nov 7:51 pm CST
Extended Forecast for

Winthrop Harbor IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. West southwest wind around 5 mph becoming calm.

    Low: 43 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: Isolated showers between 8am and 4pm. Cloudy, with a high near 53. Light and variable wind becoming north northeast 10 to 15 mph in the morning. Chance of precipitation is 20%.

    High: 53 °F

    Isolated
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 7pm, then a chance of showers after 2am. Mostly cloudy, with a low around 35. Breezy, with a north wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    Low: 35 °F

    Chance
    Showers and
    Breezy

  • Thursday

    Thursday: A 40 percent chance of showers, mainly before noon. Partly sunny, with a high near 45. Breezy, with a north wind 15 to 25 mph, with gusts as high as 35 mph.

    High: 45 °F

    Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31. North northwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. West southwest wind around 5 mph becoming calm.
Veterans Day
Isolated showers between 8am and 4pm. Cloudy, with a high near 53. Light and variable wind becoming north northeast 10 to 15 mph in the morning. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers before 7pm, then a chance of showers after 2am. Mostly cloudy, with a low around 35. Breezy, with a north wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Thursday
A 40 percent chance of showers, mainly before noon. Partly sunny, with a high near 45. Breezy, with a north wind 15 to 25 mph, with gusts as high as 35 mph.
Thursday Night
Mostly cloudy, with a low around 31. North northwest wind around 15 mph, with gusts as high as 25 mph.
Friday
Mostly sunny, with a high near 44.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 49.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor IL
 42.47°N 87.84°W
Last Update:
8:41 pm CST Nov 10, 2026
Forecast Valid:
8pm CST Nov 10, 2026-6pm CST Nov 17, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation