Hazardous Weather Conditions
Current conditions at
Chicago/Waukegan Regional Airport (KUGN)
Lat: 42.43°NLon: 87.86°WElev: 709ft.
Thunderstorm in Vicinity Rain Fog/Mist
59°F
15°C
| Humidity | 100% |
| Wind Speed | SE 7 mph |
| Barometer | 29.63 in (1003.2 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 4.00 mi |
| Last update | 17 Apr 10:51 pm CDT |
Extended Forecast for
Long Lake IL
Flood Watch April 17, 11:41pm until April 18, 05:00am
Flash Flood Warning April 17, 11:41pm until April 18, 02:00am
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 42 °F
T-storms and
BreezySaturday
High: 50 °F
Decreasing
Clouds and
BreezySaturday Night
Low: 33 °F
Mostly Clear
then FrostSunday
High: 48 °F
Frost then
Slight Chance
ShowersSunday Night
Low: 30 °F
Partly Cloudy
then FrostMonday
High: 52 °F
Frost then
Mostly SunnyMonday Night
Low: 42 °F
Mostly Cloudy
Tuesday
High: 71 °F
Mostly Sunny
Detailed Forecast
Tonight
Showers and possibly a thunderstorm before 3am, then a chance of showers between 3am and 4am. Low around 42. Breezy, with a south southwest wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Cloudy, then gradually becoming mostly sunny, with a high near 50. Breezy, with a west wind around 20 mph, with gusts as high as 30 mph.
Saturday Night
Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 33. West southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
A 20 percent chance of showers after 1pm. Widespread frost before 7am. Otherwise, mostly sunny, with a high near 48. Southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 30. Northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.
Monday
Widespread frost before 8am. Otherwise, sunny, with a high near 52.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 58.
Friday
A chance of showers. Mostly cloudy, with a high near 73.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Long Lake IL
42.38°N 88.14°W
42.38°N 88.14°W
11:21 pm CDT Apr 17, 2026
11pm CDT Apr 17, 2026-6pm CDT Apr 24, 2026
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