Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Overcast
45°F
7°C
| Humidity | 90% |
| Wind Speed | N 8 mph |
| Barometer | 30.22 in (1023.8 mb) |
| Dewpoint | 42°F (6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 41°F (5°C) |
| Last update | 10 Apr 9:51 am CDT |
Extended Forecast for
Winthrop Harbor IL
Today

High: 46 °F
Mostly Cloudy
Tonight

Low: 35 °F
Decreasing
CloudsSaturday

High: 45 °F
Increasing
CloudsSaturday Night

Low: 42 °F⇑
Chance
ShowersSunday

High: 68 °F
Chance
ShowersSunday Night

Low: 58 °F
Chance
ShowersMonday
High: 72 °F
Mostly Cloudy
then Slight
Chance
T-stormsMonday Night

Low: 57 °F
Showers
LikelyTuesday
High: 72 °F
Chance
Showers then
Showers
Likely
Detailed Forecast
Today
Mostly cloudy, with a high near 46. North wind 5 to 10 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 35. Northeast wind around 5 mph.
Saturday
Increasing clouds, with a high near 45. Southeast wind 5 to 10 mph.
Saturday Night
A chance of showers and thunderstorms. Cloudy, with a temperature rising to around 48 by 5am. Southeast wind 5 to 15 mph. Chance of precipitation is 30%.
Sunday
A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 68. South wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Southwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 72. Southwest wind 10 to 15 mph.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. South wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 72. Chance of precipitation is 60%.
Tuesday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Some of the storms could produce heavy rainfall. Low around 55. Chance of precipitation is 80%.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 67.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 48.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 67.
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)
9:13 am CDT Apr 10, 2026
10am CDT Apr 10, 2026-6pm CDT Apr 16, 2026


