Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fair
60°F
16°C
| Humidity | 90% |
| Wind Speed | S 13 mph |
| Barometer | 29.75 in (1007.3 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 6 Mar 11:51 pm CST |
Extended Forecast for
Winthrop Harbor IL
Overnight

Low: 51 °F
T-storms and
Patchy FogSaturday
High: 59 °F⇓
Showers
Likely and
Patchy Fog
then Mostly
CloudySaturday Night

Low: 36 °F
Gradual
ClearingSunday

High: 58 °F
Sunny and
BreezySunday Night

Low: 47 °F
Mostly Clear
Monday

High: 62 °F
Sunny
Monday Night

Low: 41 °F
Mostly Clear
Tuesday
High: 51 °F
Mostly Sunny
then Showers
LikelyTuesday Night

Low: 34 °F
Rain Likely
Detailed Forecast
Overnight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Patchy fog between 4am and 5am. Low around 51. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely, mainly before 11am. Patchy fog before 9am. Otherwise, cloudy, with a temperature rising to near 59 by 9am, then falling to around 43 during the remainder of the day. Southwest wind around 15 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 possible.
Saturday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 36. Southwest wind around 10 mph.
Sunday
Sunny, with a high near 58. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 47. Southwest wind 10 to 15 mph.
Monday
Sunny, with a high near 62. Southwest wind 5 to 15 mph.
Monday Night
Mostly clear, with a low around 41. Southwest wind 5 to 10 mph becoming northeast after midnight.
Tuesday
Showers likely after noon. Partly sunny, with a high near 51. Northeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain likely and possibly a thunderstorm before midnight, then a chance of rain. Cloudy, with a low around 34. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of rain. Mostly cloudy, with a high near 41.
Wednesday Night
A slight chance of rain and snow. Mostly clear, with a low around 29. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 45.
Thursday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 37. Chance of precipitation is 20%.
Friday
A 20 percent chance of rain. Mostly cloudy, with a high near 54.
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)
11:32 pm CST Mar 6, 2026
12am CST Mar 7, 2026-6pm CDT Mar 13, 2026



