Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Fair
21°F
-6°C
| Humidity | 47% |
| Wind Speed | SW 12 mph |
| Barometer | 30.16 in (1023.4 mb) |
| Dewpoint | 4°F (-16°C) |
| Visibility | 10.00 mi |
| Wind Chill | 9°F (-13°C) |
| Last update | 17 Mar 5:51 pm CDT |
Extended Forecast for
Winthrop Harbor IL
Tonight
Low: 20 °F
Mostly Cloudy
then SnowWednesday
High: 41 °F
Patchy Wintry
Mix then
Partly SunnyWednesday Night
Low: 35 °F
Mostly Cloudy
then Chance
ShowersThursday

High: 44 °F
Slight Chance
ShowersThursday Night

Low: 36 °F
Mostly Cloudy
Friday

High: 51 °F
Mostly Cloudy
Friday Night

Low: 38 °F
Mostly Cloudy
Saturday

High: 60 °F
Partly Sunny
Saturday Night

Low: 43 °F
Mostly Cloudy
Detailed Forecast
Tonight
Snow, mainly after midnight. Low around 20. South wind 10 to 15 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Patchy snow and freezing rain before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 41. South wind 10 to 15 mph. Chance of precipitation is 30%.
Wednesday Night
A 40 percent chance of showers after 1am. Mostly cloudy, with a low around 35. Southwest wind around 5 mph.
Thursday
A 20 percent chance of showers before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 44. South wind around 5 mph becoming north in the afternoon.
Thursday Night
Mostly cloudy, with a low around 36. North wind around 5 mph becoming south after midnight.
Friday
Mostly cloudy, with a high near 51. Southwest wind 5 to 10 mph.
Friday Night
Mostly cloudy, with a low around 38. North wind around 5 mph.
Saturday
Partly sunny, with a high near 60. Southwest wind 5 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
A 20 percent chance of rain before 1pm. Partly sunny, with a high near 56.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 39.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Mostly cloudy, with a high near 45.
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)
6:32 pm CDT Mar 17, 2026
6pm CDT Mar 17, 2026-6pm CDT Mar 24, 2026



