Weather forecast for: Crystal Lake IL
Last Update: 8:51 pm CST Nov 5, 2026
Tonight: Patchy drizzle before 11pm. Mostly cloudy, with a low around 35. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday: Mostly sunny, with a high near 45. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night: Partly cloudy, with a low around 30. North northwest wind 5 to 10 mph becoming light northwest in the evening. Winds could gust as high as 15 mph.
Saturday: Mostly sunny, with a high near 50. Northwest wind 5 to 10 mph becoming west southwest in the afternoon.
Saturday Night: Mostly clear, with a low around 35. West southwest wind around 5 mph, with gusts as high as 15 mph.
Sunday: Sunny, with a high near 58.
Sunday Night: Clear, with a low around 35.
Monday: Sunny, with a high near 63.
Monday Night: Mostly clear, with a low around 40.
Tuesday: Sunny, with a high near 59.
Tuesday Night: Partly cloudy, with a low around 37.
Veterans Day: Mostly sunny, with a high near 56.
Wednesday Night: Partly cloudy, with a low around 37.
Thursday: Mostly sunny, with a high near 55.
WeatherWorld.com
