Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Light Rain

40°F

4°C

Humidity 93%
Wind Speed NE 12 G 20 mph
Barometer 29.95 in (1014.6 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 4 Apr 1:51 am CDT
Extended Forecast for

Winthrop Harbor IL

  • Overnight

    Overnight: Showers and possibly a thunderstorm.  Low around 37. East wind around 10 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 7am, then a chance of showers between 7am and 11am.  Cloudy, with a high near 55. Breezy, with a southeast wind 10 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 55 °F

    Showers
    Likely then
    Mostly Cloudy
    and Breezy

  • Saturday Night

    Saturday Night: A slight chance of showers between 9pm and 10pm.  Mostly cloudy, with a low around 32. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 20%.

    Low: 32 °F

    Breezy.
    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 51. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 51 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 1am.  Partly cloudy, with a low around 37. West wind 5 to 10 mph.

    Low: 37 °F

    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 47. Northwest wind 10 to 15 mph.

    High: 47 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 25. North wind around 10 mph.

    Low: 25 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 39. North wind around 5 mph becoming east in the afternoon.

    High: 39 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of snow showers between 1am and 4am, then a slight chance of rain showers after 4am.  Mostly cloudy, with a low around 31. Chance of precipitation is 20%.

    Low: 31 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 37. East wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers likely and possibly a thunderstorm before 7am, then a chance of showers between 7am and 11am. Cloudy, with a high near 55. Breezy, with a southeast wind 10 to 20 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A slight chance of showers between 9pm and 10pm. Mostly cloudy, with a low around 32. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 51. West wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
A 30 percent chance of showers before 1am. Partly cloudy, with a low around 37. West wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 47. Northwest wind 10 to 15 mph.
Monday Night
Partly cloudy, with a low around 25. North wind around 10 mph.
Tuesday
Mostly sunny, with a high near 39. North wind around 5 mph becoming east in the afternoon.
Tuesday Night
A slight chance of snow showers between 1am and 4am, then a slight chance of rain showers after 4am. Mostly cloudy, with a low around 31. Chance of precipitation is 20%.
Wednesday
A 10 percent chance of showers before 7am. Mostly cloudy, with a high near 59.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 48.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 58.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 42.
Friday
A 40 percent chance of showers. Mostly cloudy, with a high near 57.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Winthrop Harbor IL
 42.49°N 87.81°W (Elev. 600 ft)
2:36 am CDT Apr 4, 2026
2am CDT Apr 4, 2026-6pm CDT Apr 10, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database