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

32°F

0°C

Humidity 66%
Wind Speed W 6 mph
Barometer 30.12 in (1021.2 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 11 Mar 11:51 pm CDT
Extended Forecast for

Winthrop Harbor IL

Wind Advisory March 13, 12:00am until March 13, 06:00pm
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 30. West wind around 10 mph.

    Low: 30 °F

    Mostly Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 44. West wind around 10 mph.

    High: 44 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Rain likely, mainly between 1am and 5am. Cloudy, with a low around 35. Windy, with a south wind 10 to 15 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance Rain
    and Breezy
    then Rain
    Likely and
    Windy

  • Friday

    Friday: Partly sunny, with a high near 45. Windy, with a west wind 25 to 30 mph, with gusts as high as 45 mph.

    High: 45 °F

    Partly Sunny
    and Windy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 30. Blustery, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.

    Low: 30 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after 1pm. Cloudy, with a high near 40. North wind around 5 mph becoming southeast in the afternoon.

    High: 40 °F

    Cloudy then
    Slight Chance
    Snow

  • Saturday Night

    Saturday Night: Rain and snow, mainly after 1am. Low around 34. East wind 5 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 34 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Sunday

    Sunday: Rain and snow, becoming all rain after 1pm. High near 46. Breezy, with an east wind 15 to 20 mph becoming northeast in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 46 °F

    Rain/Snow and
    Breezy

  • Sunday Night

    Sunday Night: Rain and snow likely before 1am, then a chance of snow. Cloudy, with a low around 19. Blustery. Chance of precipitation is 70%.

    Low: 19 °F

    Rain/Snow
    Likely and
    Blustery

Detailed Forecast

Overnight
Mostly clear, with a low around 30. West wind around 10 mph.
Thursday
Increasing clouds, with a high near 44. West wind around 10 mph.
Thursday Night
Rain likely, mainly between 1am and 5am. Cloudy, with a low around 35. Windy, with a south wind 10 to 15 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Partly sunny, with a high near 45. Windy, with a west wind 25 to 30 mph, with gusts as high as 45 mph.
Friday Night
Mostly cloudy, with a low around 30. Blustery, with a northwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.
Saturday
A 20 percent chance of snow after 1pm. Cloudy, with a high near 40. North wind around 5 mph becoming southeast in the afternoon.
Saturday Night
Rain and snow, mainly after 1am. Low around 34. East wind 5 to 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain and snow, becoming all rain after 1pm. High near 46. Breezy, with an east wind 15 to 20 mph becoming northeast in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Sunday Night
Rain and snow likely before 1am, then a chance of snow. Cloudy, with a low around 19. Blustery. Chance of precipitation is 70%.
Monday
A 30 percent chance of snow, mainly before 1pm. Mostly cloudy, with a high near 25. Blustery.
Monday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 9.
Tuesday
Sunny, with a high near 28.
Tuesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 20.
Wednesday
A 20 percent chance of snow. Mostly cloudy, with a high near 38.
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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:
12:32 am CDT Mar 12, 2026
Forecast Valid:
12am CDT Mar 12, 2026-6pm CDT Mar 18, 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