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.

Overcast

9°F

-13°C

Humidity 55%
Wind Speed NW 6 mph
Barometer 30.32 in (1029.7 mb)
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill-1°F (-18°C)
Last update 29 Jan 8:51 pm CST
Extended Forecast for

Winthrop Harbor IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 4. Wind chill values between -10 and zero. Northwest wind 5 to 10 mph.

    Low: 4 °F

    Mostly Cloudy

  • Friday

    Friday: Snow showers, mainly before 1pm. High near 18. Wind chill values between -10 and zero. Northwest wind 10 to 15 mph becoming northeast in the morning. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 18 °F

    Snow Showers
    then Chance
    Snow Showers

  • Friday Night

    Friday Night: A chance of snow showers before midnight, then a chance of snow after midnight. Mostly cloudy, with a low around 9. Wind chill values between -5 and zero. Northwest wind 10 to 15 mph. Chance of precipitation is 40%.

    Low: 9 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: A 20 percent chance of snow before noon. Partly sunny, with a high near 23. Wind chill values between -5 and 5. North wind 10 to 15 mph.

    High: 23 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 7. Northwest wind around 5 mph.

    Low: 7 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 26. West wind 5 to 10 mph becoming south in the afternoon.

    High: 26 °F

    Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 16. Southwest wind around 5 mph.

    Low: 16 °F

    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 27. Northwest wind 5 to 10 mph.

    High: 27 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 4. Wind chill values between -10 and zero. Northwest wind 5 to 10 mph.
Friday
Snow showers, mainly before 1pm. High near 18. Wind chill values between -10 and zero. Northwest wind 10 to 15 mph becoming northeast in the morning. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Friday Night
A chance of snow showers before midnight, then a chance of snow after midnight. Mostly cloudy, with a low around 9. Wind chill values between -5 and zero. Northwest wind 10 to 15 mph. Chance of precipitation is 40%.
Saturday
A 20 percent chance of snow before noon. Partly sunny, with a high near 23. Wind chill values between -5 and 5. North wind 10 to 15 mph.
Saturday Night
Mostly clear, with a low around 7. Northwest wind around 5 mph.
Sunday
Sunny, with a high near 26. West wind 5 to 10 mph becoming south in the afternoon.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 16. Southwest wind around 5 mph.
Monday
Partly sunny, with a high near 27. Northwest wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
A 20 percent chance of snow. Mostly cloudy, with a high near 26.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 17.
Wednesday
A 30 percent chance of snow. Mostly cloudy, with a high near 26.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 16.
Thursday
Partly sunny, with a high near 28.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor IL
 42.49°N 87.81°W (Elev. 600 ft)
Last Update:
8:52 pm CST Jan 29, 2026
Forecast Valid:
9pm CST Jan 29, 2026-6pm CST Feb 5, 2026
 
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