National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

A Few Clouds and Breezy

65°F

18°C

Humidity 84%
Wind Speed S 22 G 30 mph
Barometer 29.89 in (1011.5 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 3 Nov 7:51 am CST
Extended Forecast for

Winthrop Harbor ILSimilar City Names

  • Today

    Today: A 40 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 68. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 68 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Showers

  • Tonight

    Tonight: Showers likely, mainly after 11pm. Mostly cloudy, with a low around 60. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 60 °F

    Showers
    Likely and
    Breezy

  • Wednesday

    Wednesday: Showers likely before 1pm, then a slight chance of showers after 5pm. Partly sunny, with a temperature rising to near 63 by 10am, then falling to around 57 during the remainder of the day. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F⇓

    Showers
    Likely then
    Slight Chance
    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 49. Southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 49 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 56. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 56 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 53.

    High: 53 °F

    Chance
    Showers

  • Friday Night

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

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

Detailed Forecast

Today
A 40 percent chance of showers, mainly after 2pm. Mostly cloudy, with a high near 68. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Showers likely, mainly after 11pm. Mostly cloudy, with a low around 60. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Showers likely before 1pm, then a slight chance of showers after 5pm. Partly sunny, with a temperature rising to near 63 by 10am, then falling to around 57 during the remainder of the day. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 49. Southwest wind around 15 mph, with gusts as high as 25 mph.
Thursday
A 30 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 56. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 43.
Friday
A 30 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 53.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Partly sunny, with a high near 52.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor ILSimilar City Names
 42.47°N 87.84°W
Last Update:
5:31 am CST Nov 3, 2026
Forecast Valid:
8am CST Nov 3, 2026-6pm CST Nov 9, 2026
 
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Additional Resources

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Chance of Precipitation