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

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

26°F

-3°C

Humidity 66%
Wind Speed NW 13 G 24 mph
Barometer 30.23 in (1025.3 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 27 Nov 8:51 pm CST
Extended Forecast for

Winthrop Harbor IL

Winter Storm Watch November 29, 03:00am until November 30, 06:00am
Click here for hazard details and duration
Winter Storm Watch

  • Tonight

    Tonight: Partly cloudy, with a low around 22. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 22 °F

    Partly Cloudy
    and Blustery

  • Friday

    Friday: Sunny, with a high near 31. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 31 °F

    Sunny

  • Friday Night

    Friday Night: A 40 percent chance of snow, mainly after 3am. Increasing clouds, with a steady temperature around 25. West northwest wind around 5 mph becoming calm in the evening.

    Low: 25 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow. The snow could be heavy at times. High near 34. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 34 °F

    Heavy Snow

  • Saturday Night

    Saturday Night: Snow, possibly mixed with rain, becoming all snow after midnight. Low around 27. Southeast wind 5 to 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 100%.

    Low: 27 °F

    Rain/Snow
    then Snow

  • Sunday

    Sunday: Snow showers likely, mainly before noon. Partly sunny, with a high near 31. Chance of precipitation is 60%.

    High: 31 °F

    Snow Showers
    Likely then
    Slight Chance
    Snow Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 23.

    High: 23 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of snow before midnight. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 22. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Friday
Sunny, with a high near 31. West northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
A 40 percent chance of snow, mainly after 3am. Increasing clouds, with a steady temperature around 25. West northwest wind around 5 mph becoming calm in the evening.
Saturday
Snow. The snow could be heavy at times. High near 34. South southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Saturday Night
Snow, possibly mixed with rain, becoming all snow after midnight. Low around 27. Southeast wind 5 to 15 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 100%.
Sunday
Snow showers likely, mainly before noon. Partly sunny, with a high near 31. Chance of precipitation is 60%.
Sunday Night
Mostly cloudy, with a low around 11.
Monday
Partly sunny, with a high near 23.
Monday Night
A chance of snow before midnight. Mostly cloudy, with a low around 12.
Tuesday
Partly sunny, with a high near 24.
Tuesday Night
Mostly cloudy, with a low around 15.
Wednesday
Mostly cloudy, with a high near 30.
Wednesday Night
Mostly cloudy, with a low around 16.
Thursday
Partly sunny, with a high near 26.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor IL
 42.47°N 87.84°W
Last Update:
9:21 pm CST Nov 27, 2025
Forecast Valid:
9pm CST Nov 27, 2025-6pm CST Dec 4, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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