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Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Mostly Cloudy

32°F

0°C

Humidity 73%
Wind Speed NE 10 G 23 mph
Barometer 30.36 in (1029.0 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 6 Apr 10:51 pm CDT
Extended Forecast for

Winthrop Harbor IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 26. North wind around 10 mph.

    Low: 26 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 37. North wind around 5 mph becoming east in the afternoon.

    High: 37 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of snow between 2am and 4am, then a slight chance of rain after 4am. Increasing clouds, with a low around 32. South wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 32 °F

    Partly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 60. South wind around 15 mph, with gusts as high as 30 mph.

    High: 60 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Showers likely. Mostly cloudy, with a low around 49. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Showers
    Likely

  • Thursday

    Thursday: A 20 percent chance of showers. Mostly sunny, with a high near 60. West wind 5 to 10 mph.

    High: 60 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely, with thunderstorms also possible after 10pm. Mostly cloudy, with a low around 42. Southwest wind around 5 mph becoming northeast after midnight. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 42 °F

    Showers
    Likely

  • Friday

    Friday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 50. North wind around 5 mph.

    High: 50 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 26. North wind around 10 mph.
Tuesday
Sunny, with a high near 37. North wind around 5 mph becoming east in the afternoon.
Tuesday Night
A slight chance of snow between 2am and 4am, then a slight chance of rain after 4am. Increasing clouds, with a low around 32. South wind 5 to 10 mph. Chance of precipitation is 20%.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 60. South wind around 15 mph, with gusts as high as 30 mph.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 49. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 60. West wind 5 to 10 mph.
Thursday Night
Showers likely, with thunderstorms also possible after 10pm. Mostly cloudy, with a low around 42. Southwest wind around 5 mph becoming northeast after midnight. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 50. North wind around 5 mph.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 52.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 44.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 68.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. Chance of precipitation is 70%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
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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:
11:31 pm CDT Apr 6, 2026
Forecast Valid:
11pm CDT Apr 6, 2026-6pm CDT Apr 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation