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Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

A Few Clouds

53°F

12°C

Humidity 83%
Wind Speed SW 14 mph
Barometer 29.61 in (1002.3 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 9 May 3:51 am CDT
Extended Forecast for

Winthrop Harbor IL

  • Today

    Today: Scattered sprinkles before 3pm, then isolated showers between 3pm and 5pm, then scattered sprinkles with isolated showers after 5pm. Partly sunny, with a high near 72. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 72 °F

    Partly Sunny
    then Isolated
    Showers

  • Tonight

    Tonight: Scattered sprinkles before 7pm. Mostly clear, with a low around 44. North wind 5 to 10 mph.

    Low: 44 °F

    Scattered
    Sprinkles

  • Sunday

    Sunday: Increasing clouds, with a high near 61. Northwest wind around 5 mph.

    High: 61 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42. East wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 54. East wind around 5 mph.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 42. East wind around 5 mph becoming south after midnight.

    Low: 42 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 1pm. High near 68. South wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 48. Southwest wind around 10 mph becoming northwest after midnight.

    Low: 48 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

Today
Scattered sprinkles before 3pm, then isolated showers between 3pm and 5pm, then scattered sprinkles with isolated showers after 5pm. Partly sunny, with a high near 72. West wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tonight
Scattered sprinkles before 7pm. Mostly clear, with a low around 44. North wind 5 to 10 mph.
Sunday
Increasing clouds, with a high near 61. Northwest wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 42. East wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 54. East wind around 5 mph.
Monday Night
Partly cloudy, with a low around 42. East wind around 5 mph becoming south after midnight.
Tuesday
Showers, with thunderstorms also possible after 1pm. High near 68. South wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 48. Southwest wind around 10 mph becoming northwest after midnight.
Wednesday
Mostly sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 48.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 72.
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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 am CDT May 9, 2026
Forecast Valid:
4am CDT May 9, 2026-6pm CDT May 15, 2026
 
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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