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 Chill | 33°F (1°C) |
| Last update | 4 Apr 1:51 am CDT |
Extended Forecast for
Winthrop Harbor IL
Overnight

Low: 37 °F
Showers
Saturday
High: 55 °F
Showers
Likely then
Mostly Cloudy
and BreezySaturday Night
Low: 32 °F
Breezy.
Slight Chance
Showers then
Mostly CloudySunday

High: 51 °F
Decreasing
CloudsSunday Night

Low: 37 °F
Chance
ShowersMonday

High: 47 °F
Mostly Sunny
Monday Night

Low: 25 °F
Partly Cloudy
Tuesday

High: 39 °F
Mostly Sunny
Tuesday Night
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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Winthrop Harbor IL
42.49°N 87.81°W (Elev. 600 ft)
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



