Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Light Rain
16°C
61°F
| Humidity | 93% |
| Wind Speed | NW 17 G 26 km/h |
| Barometer | 1007.5 mb (29.77 in) |
| Dewpoint | 15°C (59°F) |
| Visibility | 14 km |
| Last update | 15 Apr 10:51 pm CDT |
Extended Forecast for
Long Lake IL
Flood Watch April 15, 11:46pm until April 16, 01:00am
NOW until 1:00am Thu

Flood Watch
Tonight

Low: 17 °C
Severe
ThunderstormsThursday

High: 20 °C
Chance
ShowersThursday Night

Low: 9 °C
Partly Cloudy
Friday

High: 24 °C
Partly Sunny
Friday Night

Low: 7 °C
Showers
Saturday

High: 13 °C
Chance
ShowersSaturday Night

Low: 0 °C
Partly Cloudy
Sunday

High: 10 °C
Sunny
Detailed Forecast
Tonight
Showers and possibly a thunderstorm before midnight, then showers and thunderstorms likely, mainly between midnight and 1am. Some of the storms could be severe. Steady temperature around 17. West wind 10 to 20 km/h becoming south after midnight. Winds could gust as high as 30 km/h. Chance of precipitation is 90%. New rainfall amounts between 5 and 7.5 mm possible.
Thursday
A chance of showers and thunderstorms before 1pm, then a slight chance of showers between 1pm and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 20. Southwest wind 10 to 15 km/h becoming north northwest in the afternoon. Winds could gust as high as 25 km/h. Chance of precipitation is 50%.
Thursday Night
Partly cloudy, with a low around 9. East northeast wind 5 to 10 km/h becoming southeast after midnight.
Friday
Partly sunny, with a high near 24. South southeast wind 10 to 15 km/h increasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 40 km/h.
Friday Night
Showers and possibly a thunderstorm. Low around 7. South southeast wind around 25 km/h becoming southwest after midnight. Winds could gust as high as 35 km/h. Chance of precipitation is 90%.
Saturday
A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 13.
Saturday Night
Partly cloudy, with a low around 0.
Sunday
Sunny, with a high near 10.
Sunday Night
Patchy frost after 2am. Otherwise, partly cloudy, with a low around -1.
Monday
Patchy frost before 8am. Otherwise, sunny, with a high near 14.
Monday Night
Partly cloudy, with a low around 7.
Tuesday
Mostly sunny, with a high near 22.
Tuesday Night
Mostly clear, with a low around 8.
Wednesday
Mostly sunny, with a high near 18.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Long Lake IL
42.38°N 88.14°W
42.38°N 88.14°W
10:56 pm CDT Apr 15, 2026
11pm CDT Apr 15, 2026-6pm CDT Apr 22, 2026



