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Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fair and Breezy
69°F
21°C
| Humidity | 66% |
| Wind Speed | SW 23 G 32 mph |
| Barometer | 29.92 in (1012.9 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 12 Apr 10:51 am CDT |
Extended Forecast for
Winthrop Harbor IL
Today

High: 71 °F
Chance
ShowersTonight
Low: 59 °F
Showers then
Chance
Showers and
Patchy FogMonday

High: 76 °F
Partly Sunny
Monday Night
Low: 60 °F
Chance
Showers then
Chance
T-stormsTuesday
High: 76 °F
Slight Chance
T-storms then
Chance
T-stormsTuesday Night

Low: 52 °F
Showers
Wednesday

High: 62 °F
Showers
Wednesday Night

Low: 52 °F
Showers
LikelyThursday

High: 67 °F
Chance
Showers
Detailed Forecast
Today
A chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 71. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms before midnight, then a chance of showers between midnight and 1am. Patchy fog after 1am. Low around 59. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Partly sunny, with a high near 76. Southwest wind around 10 mph.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 11pm. Mostly cloudy, with a low around 60. Southwest wind around 10 mph.
Tuesday
A slight chance of thunderstorms before 1pm, then a chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 76. Southwest wind around 10 mph. Chance of precipitation is 40%.
Tuesday Night
Showers and possibly a thunderstorm before 4am, then showers likely. Low around 52. Southwest wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 62. Northwest wind around 10 mph becoming southeast in the morning. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 52. South wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 49.
Friday
A 30 percent chance of showers. Partly sunny, with a high near 71.
Friday Night
Showers and possibly a thunderstorm. Low around 50. Chance of precipitation is 80%.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 62.
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)
11:41 am CDT Apr 12, 2026
11am CDT Apr 12, 2026-6pm CDT Apr 18, 2026



