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.

Light Rain Fog

46°F

8°C

Humidity 96%
Wind Speed Vrbl 5 mph
Barometer 29.35 in (994.3 mb)
Dewpoint 45°F (7°C)
Visibility 0.25 mi
Wind Chill44°F (7°C)
Last update 28 Dec 2:51 pm CST
Extended Forecast for

Winthrop Harbor IL

Wind Advisory December 28, 06:00pm until December 29, 06:00pm
Click here for hazard details and duration
Wind Advisory

  • This Afternoon

    This Afternoon: Rain and possibly a thunderstorm before 5pm, then a chance of rain and thunderstorms after 5pm. Areas of fog. High near 49. Northeast wind around 10 mph becoming northwest. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 49 °F

    Rain and
    Areas Fog

  • Tonight

    Tonight: A chance of rain and snow before 10pm, then snow. Patchy blowing snow after 11pm. Low around 20. Windy, with a west wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 20 °F

    Rain/Snow and
    Patchy
    Blowing Snow

  • Monday

    Monday: Snow likely, mainly before 9am. Patchy blowing snow before 7am. Mostly cloudy, with a high near 25. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 25 °F

    Snow Likely
    and Patchy
    Blowing Snow

  • Monday Night

    Monday Night: Patchy blowing snow before midnight. Partly cloudy, with a low around 12. Wind chill values between zero and 5. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph.

    Low: 12 °F

    Patchy
    Blowing Snow
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow after noon. Increasing clouds, with a high near 29. West wind 10 to 15 mph.

    High: 29 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 22. West wind around 15 mph.

    Low: 22 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 30. Northwest wind 10 to 15 mph.

    High: 30 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 11. Northwest wind around 10 mph.

    Low: 11 °F

    Chance Snow
    then Partly
    Cloudy

  • New Year's Day

    New Year's Day: Sunny, with a high near 20.

    High: 20 °F

    Sunny

Detailed Forecast

This Afternoon
Rain and possibly a thunderstorm before 5pm, then a chance of rain and thunderstorms after 5pm. Areas of fog. High near 49. Northeast wind around 10 mph becoming northwest. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of rain and snow before 10pm, then snow. Patchy blowing snow after 11pm. Low around 20. Windy, with a west wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
Snow likely, mainly before 9am. Patchy blowing snow before 7am. Mostly cloudy, with a high near 25. Windy, with a northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday Night
Patchy blowing snow before midnight. Partly cloudy, with a low around 12. Wind chill values between zero and 5. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 35 mph.
Tuesday
A 20 percent chance of snow after noon. Increasing clouds, with a high near 29. West wind 10 to 15 mph.
Tuesday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 22. West wind around 15 mph.
Wednesday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 30. Northwest wind 10 to 15 mph.
Wednesday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 11. Northwest wind around 10 mph.
New Year's Day
Sunny, with a high near 20.
Thursday Night
Partly cloudy, with a low around 11.
Friday
Partly sunny, with a high near 26.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Partly sunny, with a high near 29.
Saturday Night
Mostly cloudy, with a low around 15.
Sunday
Partly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor IL
 42.49°N 87.81°W (Elev. 600 ft)
Last Update:
1:42 pm CST Dec 28, 2025
Forecast Valid:
3pm CST Dec 28, 2025-6pm CST Jan 4, 2026
 
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