Weather forecast for: Waukegan IL
Last Update: 3:01 pm CDT Sep 29, 2026
Tonight: A 30 percent chance of showers, mainly after 3am. Cloudy, with a low around 60. South southeast wind around 10 mph, with gusts as high as 15 mph.
Wednesday: Showers. High near 67. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night: Showers. Low around 64. Southwest wind 5 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday: Showers and possibly a thunderstorm before 1pm, then showers between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 70. South southwest wind around 5 mph becoming north northwest in the afternoon. Winds could gust as high as 10 mph. Chance of precipitation is 90%.
Thursday Night: Showers and possibly a thunderstorm. Low around 54. North wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%.
Friday: Partly sunny, with a high near 64.
Friday Night: Mostly clear, with a low around 48.
Saturday: Sunny, with a high near 62.
Saturday Night: Partly cloudy, with a low around 48.
Sunday: Mostly sunny, with a high near 64.
Sunday Night: Mostly clear, with a low around 46.
Monday: Sunny, with a high near 60.
Monday Night: Mostly clear, with a low around 45.
Tuesday: Mostly sunny, with a high near 62.
WeatherWorld.com
City of Waukegan, IL
