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

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Light Rain

61°F

16°C

Humidity 84%
Wind Speed N 6 mph
Barometer 30.03 in (1016.3 mb)
Dewpoint 56°F (13°C)
Visibility 9.00 mi
Last update 7 Oct 4:51 am CDT
Extended Forecast for

Winthrop Harbor IL

  • Overnight

    Overnight: A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 57. North wind around 15 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 8am. Cloudy through mid morning, then gradual clearing, with a high near 65. North wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 65 °F

    Chance
    Showers then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50. North northwest wind 10 to 15 mph.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 60. Northeast wind around 10 mph.

    High: 60 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50. Northeast wind around 5 mph becoming east southeast after midnight. Winds could gust as high as 10 mph.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 57. North wind around 15 mph, with gusts as high as 20 mph.
Tuesday
A chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 8am. Cloudy through mid morning, then gradual clearing, with a high near 65. North wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 50. North northwest wind 10 to 15 mph.
Wednesday
Mostly sunny, with a high near 60. Northeast wind around 10 mph.
Wednesday Night
Mostly clear, with a low around 50. Northeast wind around 5 mph becoming east southeast after midnight. Winds could gust as high as 10 mph.
Thursday
Sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 49.
Friday
Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 60.
Columbus Day
Mostly sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor IL
 42.47°N 87.81°W
Last Update:
4:11 am CDT Oct 7, 2025
Forecast Valid:
5am CDT Oct 7, 2025-6pm CDT Oct 13, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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