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 and Windy

38°F

3°C

Humidity 89%
Wind Speed S 26 G 40 mph
Barometer 29.54 in (1000.8 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 13 Mar 2:51 am CDT
Extended Forecast for

Winthrop Harbor IL

Winter Storm Watch March 14, 07:00pm until March 16, 04:00pm
High Wind Warning March 13, 03:51am until March 13, 04:00pm
Click here for hazard details and duration
Winter Storm Watch
High Wind Warning
  •  
    High Wind Warning March 13, 03:51am until March 13, 04:00pm

    NOW until 4:00pm Fri

    High Wind Warning

  • Overnight

    Low: 35 °F

    Chance Rain
    and Windy

  • Friday

    Friday: A slight chance of rain and snow between 9am and 10am. Mostly cloudy, with a high near 42. Windy, with a west wind 25 to 30 mph, with gusts as high as 55 mph. Chance of precipitation is 20%.

    High: 42 °F

    Windy. Slight
    Chance
    Rain/Snow
    then Partly
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, 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 35 mph.

    Low: 30 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Saturday

    Saturday: Cloudy, with a high near 36. North wind 5 to 10 mph becoming southeast in the afternoon.

    High: 36 °F

    Cloudy

  • Saturday Night

    Saturday Night: Rain, possibly mixed with snow, becoming all rain after 4am. Low around 34. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 34 °F

    Rain/Snow

  • Sunday

    Sunday: Rain. High near 52. East wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 52 °F

    Rain Likely
    then Rain

  • Sunday Night

    Sunday Night: Rain before 10pm, then rain and sleet between 10pm and 1am, then snow after 1am. The sleet could be heavy at times. Some thunder is also possible. Patchy blowing snow after 3am. Low around 22. Blustery, with a north wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    Low: 22 °F

    Wintry Mix
    and Patchy
    Blowing Snow

  • Monday

    Monday: Snow. Patchy blowing snow. High near 27. Windy, with a northwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%.

    High: 27 °F

    Snow and
    Patchy
    Blowing Snow

Detailed Forecast

Overnight
A 50 percent chance of rain. Mostly cloudy, with a low around 35. Windy, with a south wind 25 to 30 mph, with gusts as high as 50 mph.
Friday
A slight chance of rain and snow between 9am and 10am. Mostly cloudy, with a high near 42. Windy, with a west wind 25 to 30 mph, with gusts as high as 55 mph. Chance of precipitation is 20%.
Friday Night
Increasing clouds, 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 35 mph.
Saturday
Cloudy, with a high near 36. North wind 5 to 10 mph becoming southeast in the afternoon.
Saturday Night
Rain, possibly mixed with snow, becoming all rain after 4am. Low around 34. East wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday
Rain. High near 52. East wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday Night
Rain before 10pm, then rain and sleet between 10pm and 1am, then snow after 1am. The sleet could be heavy at times. Some thunder is also possible. Patchy blowing snow after 3am. Low around 22. Blustery, with a north wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Monday
Snow. Patchy blowing snow. High near 27. Windy, with a northwest wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 90%.
Monday Night
A 30 percent chance of snow before 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 9. Blustery.
Tuesday
Mostly sunny, with a high near 25.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 18.
Wednesday
A 20 percent chance of snow. Mostly cloudy, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 31.
Thursday
Partly sunny, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor IL
 42.49°N 87.81°W (Elev. 600 ft)
Last Update:
3:33 am CDT Mar 13, 2026
Forecast Valid:
3am CDT Mar 13, 2026-6pm CDT Mar 19, 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