Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Partly Cloudy
77°F
25°C
| Humidity | 66% |
| Wind Speed | SW 12 mph |
| Barometer | 29.95 in (1013.4 mb) |
| Dewpoint | 65°F (18°C) |
| Visibility | 10.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 21 Aug 3:51 pm CDT |
Extended Forecast for
Winthrop Harbor ILSimilar City Names
Severe T-storm Watch until August 21, 10:00pm
NOW until 10:00pm Fri
Severe T-storm Watch
This Afternoon
High: 77 °F
Severe
ThunderstormsTonight
Low: 62 °F
Severe
Thunderstorms
then Slight
Chance
T-stormsSaturday
High: 78 °F
Mostly Sunny
then
Scattered
ShowersSaturday Night
Low: 58 °F
Mostly Clear
Sunday
High: 74 °F
Sunny
Sunday Night
Low: 58 °F
Mostly Clear
Monday
High: 73 °F
Mostly Sunny
Monday Night
Low: 60 °F
Partly Cloudy
Detailed Forecast
This Afternoon
Showers and thunderstorms likely, mainly after 5pm. Some of the storms could be severe. Mostly cloudy, with a high near 77. South wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly before midnight. Some of the storms could be severe. Mostly cloudy, with a low around 62. South wind 5 to 10 mph becoming west northwest after midnight. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Scattered showers and thunderstorms after 1pm. Mostly sunny, with a high near 78. Northwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 58. North northwest wind 5 to 10 mph.
Sunday
Sunny, with a high near 74. Northwest wind around 10 mph, with gusts as high as 15 mph.
Sunday Night
Mostly clear, with a low around 58.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 77.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Winthrop Harbor ILSimilar City Names
42.47°N 87.84°W
42.47°N 87.84°W
3:01 pm CDT Aug 21, 2026
4pm CDT Aug 21, 2026-6pm CDT Aug 28, 2026
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