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Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fog

40°F

4°C

Humidity 100%
Wind Speed SW 6 mph
Barometer 29.24 in (990.7 mb)
Dewpoint 40°F (4°C)
Visibility 0.50 mi
Wind Chill36°F (2°C)
Last update 20 Feb 2:51 am CST
Extended Forecast for

Winthrop Harbor IL

Wind Advisory February 20, 06:00am until February 20, 03:00pm
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: A 30 percent chance of rain, mainly before 4am. Cloudy, with a low around 36. Southeast wind 10 to 15 mph becoming southwest. Winds could gust as high as 30 mph.

    Low: 36 °F

    Chance Rain

  • Friday

    Friday: A chance of rain and snow before noon, then a slight chance of snow between noon and 3pm. Cloudy, with a high near 40. Windy, with a west wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 40%.

    High: 40 °F

    Windy. Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 27. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 27 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 37. Northwest wind around 10 mph.

    High: 37 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after midnight. Cloudy, with a low around 26. Northwest wind 10 to 15 mph.

    Low: 26 °F

    Cloudy then
    Chance Snow

  • Sunday

    Sunday: A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 31. Northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 31 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 21. Northwest wind around 15 mph.

    Low: 21 °F

    Chance Snow

  • Monday

    Monday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 30. North wind 10 to 15 mph.

    High: 30 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly before 4am. Cloudy, with a low around 36. Southeast wind 10 to 15 mph becoming southwest. Winds could gust as high as 30 mph.
Friday
A chance of rain and snow before noon, then a slight chance of snow between noon and 3pm. Cloudy, with a high near 40. Windy, with a west wind 15 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 40%.
Friday Night
Mostly cloudy, with a low around 27. Breezy, with a west wind 10 to 20 mph, with gusts as high as 30 mph.
Saturday
Partly sunny, with a high near 37. Northwest wind around 10 mph.
Saturday Night
A 30 percent chance of snow after midnight. Cloudy, with a low around 26. Northwest wind 10 to 15 mph.
Sunday
A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 31. Northwest wind around 15 mph, with gusts as high as 25 mph.
Sunday Night
A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 21. Northwest wind around 15 mph.
Monday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 30. North wind 10 to 15 mph.
Monday Night
Mostly cloudy, with a low around 21.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 42. Chance of precipitation is 30%.
Wednesday Night
A 20 percent chance of snow. Partly cloudy, with a low around 24.
Thursday
A 20 percent chance of snow. Mostly sunny, with a high near 39.
Basemap Options
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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:
2:33 am CST Feb 20, 2026
Forecast Valid:
3am CST Feb 20, 2026-6pm CST Feb 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation