Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

74°F

23°C

Humidity 88%
Wind Speed Calm
Barometer 29.89 in (1010.7 mb)
Dewpoint 70°F (21°C)
Visibility 9.00 mi
Last update 16 Jul 1:51 am CDT
Extended Forecast for

Winthrop Harbor IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly before 3am.  Partly cloudy, with a low around 72. South wind around 5 mph.

    Low: 72 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm.  Mostly sunny, with a high near 87. South southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 1am, then a slight chance of showers.  Mostly cloudy, with a low around 66. South southwest wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    T-storms
    Likely

  • Thursday

    Thursday: Mostly cloudy, with a high near 68. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 68 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62. North northeast wind 10 to 15 mph.

    Low: 62 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 66.

    Low: 66 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms.  Mostly cloudy, with a high near 80.

    High: 80 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly before 3am. Partly cloudy, with a low around 72. South wind around 5 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 87. South southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday Night
Showers and thunderstorms likely before 1am, then a slight chance of showers. Mostly cloudy, with a low around 66. South southwest wind 10 to 15 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly cloudy, with a high near 68. North wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 62. North northeast wind 10 to 15 mph.
Friday
Mostly sunny, with a high near 73.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 66.
Saturday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
Saturday Night
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 68.
Sunday
Partly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 67.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 79.
Monday Night
Mostly cloudy, with a low around 71.
Tuesday
Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor IL
 42.47°N 87.81°W
2:26 am CDT Jul 16, 2025
2am CDT Jul 16, 2025-6pm CDT Jul 22, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database