Heavy Mountain Snow in the Northwest U.S.; Wintry Mix in the Northeast U.S.

Two more cold fronts will pass through the Northwest U.S. this week with heavy mountain snow continuing across the Cascades, and northern Rockies. A quick moving storm system will bring mixed precipitation including some freezing rain across the Northeast U.S. overnight into Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fog/Mist

38°F

3°C

Humidity 93%
Wind Speed W 9 mph
Barometer 29.75 in (1008.1 mb)
Dewpoint 36°F (2°C)
Visibility 6.00 mi
Wind Chill32°F (0°C)
Last update 6 Jan 11:51 pm CST
Extended Forecast for

Winthrop Harbor IL

  • Overnight

    Overnight: Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 34. West wind 5 to 10 mph.

    Low: 34 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before noon.  Otherwise, partly sunny, with a high near 42. West wind 5 to 10 mph becoming south in the afternoon.

    High: 42 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 37. South wind around 10 mph.

    Low: 37 °F

    Partly Cloudy

  • Thursday

    Thursday: Rain, mainly after noon.  High near 47. South wind around 10 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 47 °F

    Slight Chance
    Rain then
    Rain

  • Thursday Night

    Thursday Night: Rain, mainly before midnight.  Low around 37. Southeast wind around 10 mph becoming west after midnight.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Rain then
    Chance Rain

  • Friday

    Friday: A 20 percent chance of rain.  Partly sunny, with a high near 42. West wind around 10 mph becoming north in the afternoon.

    High: 42 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain, mainly after midnight.  Mostly cloudy, with a low around 32. Northeast wind around 10 mph.

    Low: 32 °F

    Chance Rain

  • Saturday

    Saturday: Rain likely, possibly mixed with snow, mainly before noon.  Mostly cloudy, with a high near 38. Northeast wind 10 to 15 mph becoming southwest in the morning.  Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    High: 38 °F

    Rain/Snow
    Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of snow.  Mostly cloudy, with a low around 22.

    Low: 22 °F

    Chance Snow

Detailed Forecast

Overnight
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 34. West wind 5 to 10 mph.
Wednesday
Patchy fog before noon. Otherwise, partly sunny, with a high near 42. West wind 5 to 10 mph becoming south in the afternoon.
Wednesday Night
Partly cloudy, with a low around 37. South wind around 10 mph.
Thursday
Rain, mainly after noon. High near 47. South wind around 10 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain, mainly before midnight. Low around 37. Southeast wind around 10 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 42. West wind around 10 mph becoming north in the afternoon.
Friday Night
A 40 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 32. Northeast wind around 10 mph.
Saturday
Rain likely, possibly mixed with snow, mainly before noon. Mostly cloudy, with a high near 38. Northeast wind 10 to 15 mph becoming southwest in the morning. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 22.
Sunday
A 20 percent chance of snow before noon. Mostly sunny, with a high near 32.
Sunday Night
Partly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Partly sunny, with a high near 37.
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ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor IL
 42.49°N 87.81°W (Elev. 600 ft)
10:51 pm CST Jan 6, 2026
12am CST Jan 7, 2026-6pm CST Jan 13, 2026
 
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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