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

40°F

4°C

Humidity 70%
Wind Speed W 6 mph
Barometer 30.19 in (1023.2 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 7 Nov 8:51 am CST
Extended Forecast for

Winthrop Harbor IL

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 52. West wind around 5 mph.

    High: 52 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 37. West wind 5 to 10 mph.

    Low: 37 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 58. West wind 10 to 15 mph.

    High: 58 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37. Northwest wind 5 to 10 mph.

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 58. West wind 5 to 10 mph becoming southwest in the afternoon.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 42. Southwest wind 5 to 10 mph becoming west after midnight.

    Low: 42 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 60. West wind around 5 mph.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40. Northwest wind around 5 mph.

    Low: 40 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 52. West wind around 5 mph.
Tonight
Partly cloudy, with a low around 37. West wind 5 to 10 mph.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 58. West wind 10 to 15 mph.
Sunday Night
Partly cloudy, with a low around 37. Northwest wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 58. West wind 5 to 10 mph becoming southwest in the afternoon.
Monday Night
Partly cloudy, with a low around 42. Southwest wind 5 to 10 mph becoming west after midnight.
Tuesday
Sunny, with a high near 60. West wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 40. Northwest wind around 5 mph.
Veterans Day
Mostly sunny, with a high near 53.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 39.
Thursday
A 40 percent chance of rain. Partly sunny, with a high near 49.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Friday
A chance of rain and snow. Partly sunny, with a high near 46. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor IL
 42.5°N 87.84°W (Elev. 620 ft)
Last Update:
9:26 am CST Nov 7, 2026
Forecast Valid:
10am CST Nov 7, 2026-6pm CST Nov 13, 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