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

3°F

-16°C

Humidity 62%
Wind Speed NW 9 mph
Barometer 30.32 in (1029.7 mb)
Dewpoint -7°F (-22°C)
Visibility 10.00 mi
Wind Chill-11°F (-24°C)
Last update 29 Jan 8:51 am CST
Extended Forecast for

Winthrop Harbor IL

  • Today

    Today: Sunny, with a high near 16. Wind chill values between -10 and zero. Northwest wind 5 to 10 mph.

    High: 16 °F

    Sunny

  • Tonight

    Tonight: A 20 percent chance of snow after 3am. Partly cloudy, with a low around 4. Wind chill values between -10 and zero. Northwest wind 5 to 10 mph.

    Low: 4 °F

    Partly Cloudy
    then Slight
    Chance Snow

  • Friday

    Friday: Snow likely, mainly before noon. Partly sunny, with a 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 70%. New snow accumulation of around an inch possible.

    High: 18 °F

    Snow Likely

  • Friday Night

    Friday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 9. Wind chill values between -5 and zero. Northwest wind 10 to 15 mph.

    Low: 9 °F

    Chance Snow

  • Saturday

    Saturday: A 50 percent chance of snow, mainly before noon. Partly sunny, with a high near 23. North wind 10 to 15 mph.

    High: 23 °F

    Chance Snow
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 9. Northwest wind around 5 mph.

    Low: 9 °F

    Partly Cloudy

  • Sunday

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

    High: 26 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 16. Southwest wind 5 to 10 mph.

    Low: 16 °F

    Chance Snow

  • Monday

    Monday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 29.

    High: 29 °F

    Slight Chance
    Snow then
    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 16. Wind chill values between -10 and zero. Northwest wind 5 to 10 mph.
Tonight
A 20 percent chance of snow after 3am. Partly cloudy, with a low around 4. Wind chill values between -10 and zero. Northwest wind 5 to 10 mph.
Friday
Snow likely, mainly before noon. Partly sunny, with a 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 70%. New snow accumulation of around an inch possible.
Friday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 9. Wind chill values between -5 and zero. Northwest wind 10 to 15 mph.
Saturday
A 50 percent chance of snow, mainly before noon. Partly sunny, with a high near 23. North wind 10 to 15 mph.
Saturday Night
Partly cloudy, with a low around 9. Northwest wind around 5 mph.
Sunday
Mostly sunny, with a high near 26. West wind 5 to 10 mph becoming south in the afternoon.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 16. Southwest wind 5 to 10 mph.
Monday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 29.
Monday Night
Mostly cloudy, with a low around 16.
Tuesday
A 20 percent chance of snow. Partly sunny, with a high near 27.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 17.
Wednesday
A 40 percent chance of snow. Mostly cloudy, with a high near 27.
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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:
7:33 am CST Jan 29, 2026
Forecast Valid:
9am CST Jan 29, 2026-6pm CST Feb 4, 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