Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Light Rain
75°F
24°C
| Humidity | 90% |
| Wind Speed | NE 6 mph |
| Barometer | 29.93 in (1012.4 mb) |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Last update | 10 Aug 4:51 pm CDT |
Extended Forecast for
Long Lake IL
This Afternoon

High: 86 °F
T-storms
LikelyTonight

Low: 67 °F
T-storms
LikelyTuesday

High: 80 °F
Severe
ThunderstormsTuesday Night
Low: 65 °F
Partly Cloudy
then Chance
T-stormsWednesday

High: 82 °F
Chance
T-stormsWednesday Night

Low: 65 °F
Partly Cloudy
Thursday

High: 79 °F
Chance
ShowersThursday Night

Low: 62 °F
Mostly Cloudy
Friday

High: 76 °F
Chance
Showers
Detailed Forecast
This Afternoon
Showers and thunderstorms likely. Mostly cloudy, with a high near 86. East southeast wind around 5 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 between 8pm and midnight. Mostly cloudy, with a low around 67. East southeast wind around 5 mph becoming calm. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers and thunderstorms, mainly before 1pm. Some of the storms could be severe and produce heavy rainfall. High near 80. East southeast wind around 5 mph becoming north northwest in the afternoon. Winds could gust as high as 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 4am. Increasing clouds, with a low around 65. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.
Thursday Night
Mostly cloudy, with a low around 62.
Friday
A chance of showers before 1pm. Partly sunny, with a high near 76.
Friday Night
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62.
Saturday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 78.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65.
Sunday
A chance of showers. Mostly cloudy, with a high near 78.
Sunday Night
Mostly cloudy, with a low around 61.
Monday
Partly sunny, with a high near 74.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Long Lake IL
42.38°N 88.14°W
42.38°N 88.14°W
4:46 pm CDT Aug 10, 2026
5pm CDT Aug 10, 2026-6pm CDT Aug 17, 2026



