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.

Fair

12°F

-11°C

Humidity 80%
Wind Speed W 7 mph
Barometer 30.34 in (1029.6 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill1°F (-17°C)
Last update 1 Feb 1:51 am CST
Extended Forecast for

Winthrop Harbor ILSimilar City Names

  • Overnight

    Overnight: Mostly clear, with a low around 10. Wind chill values as low as zero. West wind around 5 mph.

    Low: 10 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 27. Wind chill values as low as zero. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 27 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Snow likely, mainly between 9pm and 3am. Mostly cloudy, with a steady temperature around 21. South southwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Slight Chance
    Snow then
    Snow Likely

  • Monday

    Monday: Mostly cloudy, with a high near 27. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 27 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 13. West northwest wind around 5 mph, with gusts as high as 10 mph.

    Low: 13 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 10.

    Low: 10 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 24.

    High: 24 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 10. Wind chill values as low as zero. West wind around 5 mph.
Sunday
Mostly sunny, with a high near 27. Wind chill values as low as zero. South southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Snow likely, mainly between 9pm and 3am. Mostly cloudy, with a steady temperature around 21. South southwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
Mostly cloudy, with a high near 27. West northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
Mostly cloudy, with a low around 13. West northwest wind around 5 mph, with gusts as high as 10 mph.
Tuesday
Mostly sunny, with a high near 24.
Tuesday Night
Partly cloudy, with a low around 10.
Wednesday
Mostly sunny, with a high near 24.
Wednesday Night
Partly cloudy, with a low around 12.
Thursday
Partly sunny, with a high near 33.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 25.
Friday
A chance of snow. Mostly cloudy, with a high near 32.
Friday Night
Partly cloudy, with a low around 7.
Saturday
Mostly sunny, with a high near 18.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor ILSimilar City Names
 42.47°N 87.84°W
Last Update:
1:46 am CST Feb 1, 2026
Forecast Valid:
2am CST Feb 1, 2026-6pm CST Feb 7, 2026
 
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Additional Resources

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Chance of Precipitation