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

Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Mostly Cloudy

15°F

-9°C

Humidity 70%
Wind Speed W 14 G 25 mph
Barometer 29.75 in (1008.8 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill0°F (-18°C)
Last update 17 Jan 3:51 am CST
Extended Forecast for

Winthrop Harbor IL

  • Overnight

    Overnight: A 30 percent chance of snow, mainly before 5am. Cloudy, with a low around 15. West wind around 15 mph, with gusts as high as 25 mph.

    Low: 15 °F

    Chance Snow

  • Saturday

    Saturday: Snow, mainly after noon. High near 21. Wind chill values between zero and 5. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 21 °F

    Breezy.
    Chance Snow
    then Snow

  • Saturday Night

    Saturday Night: Snow, mainly before 9pm. Low around 9. Wind chill values between -5 and 5. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 9 °F

    Snow then
    Mostly Cloudy

  • Sunday

    Sunday: Snow likely after noon. Mostly cloudy, with a high near 19. Wind chill values between -5 and 5. Southwest wind 10 to 15 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 19 °F

    Mostly Cloudy
    then Snow
    Likely

  • Sunday Night

    Sunday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 3. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 3 °F

    Snow Likely
    then Slight
    Chance Snow
    and Breezy

  • M.L.King Day

    M.L.King Day: A 20 percent chance of snow. Mostly sunny and cold, with a high near 8. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 8 °F

    Slight Chance
    Snow and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 1. West wind 10 to 15 mph.

    Low: 1 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 20. West wind around 10 mph.

    High: 20 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 13.

    Low: 13 °F

    Chance Snow

Detailed Forecast

Overnight
A 30 percent chance of snow, mainly before 5am. Cloudy, with a low around 15. West wind around 15 mph, with gusts as high as 25 mph.
Saturday
Snow, mainly after noon. High near 21. Wind chill values between zero and 5. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Saturday Night
Snow, mainly before 9pm. Low around 9. Wind chill values between -5 and 5. West wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday
Snow likely after noon. Mostly cloudy, with a high near 19. Wind chill values between -5 and 5. Southwest wind 10 to 15 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 3. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
M.L.King Day
A 20 percent chance of snow. Mostly sunny and cold, with a high near 8. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around 1. West wind 10 to 15 mph.
Tuesday
Partly sunny, with a high near 20. West wind around 10 mph.
Tuesday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 13.
Wednesday
A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 28.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 12.
Thursday
Mostly sunny, with a high near 20.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 12.
Friday
A 20 percent chance of snow. Mostly cloudy, with a high near 26.
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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:
3:06 am CST Jan 17, 2026
Forecast Valid:
4am CST Jan 17, 2026-6pm CST Jan 23, 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