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Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

33°F

1°C

Humidity 61%
Wind Speed E 5 mph
Barometer 30.47 in (1033.0 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 7 Apr 3:51 pm CDT
Extended Forecast for

Winthrop Harbor IL

  • Tonight

    Tonight: Increasing clouds, with a low around 30. South wind 5 to 15 mph.

    Low: 30 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 8am. 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

    Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Showers, mainly after 10pm. Low around 47. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Chance
    Showers then
    Showers

  • Thursday

    Thursday: Showers likely before 7am. Mostly sunny, with a high near 58. West wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Showers
    Likely then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers. Low around 39. East wind around 5 mph becoming northeast after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Showers

  • 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 37. Northeast wind around 5 mph.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 53. East wind 5 to 10 mph.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 30. South wind 5 to 15 mph.
Wednesday
A 30 percent chance of showers, mainly before 8am. 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, mainly after 10pm. Low around 47. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers likely before 7am. Mostly sunny, with a high near 58. West wind 5 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Showers. Low around 39. East wind around 5 mph becoming northeast after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half 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 37. Northeast wind around 5 mph.
Saturday
Sunny, with a high near 53. East wind 5 to 10 mph.
Saturday Night
A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 45.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 70. Chance of precipitation is 40%.
Sunday Night
Showers and thunderstorms likely. Cloudy, with a low around 57. Chance of precipitation is 60%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.
Tuesday
Showers likely. Mostly cloudy, with a high near 61. 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:
3:32 pm CDT Apr 7, 2026
Forecast Valid:
4pm CDT Apr 7, 2026-6pm CDT Apr 14, 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