| NWS Forecast for: Chicago Heights IL Issued by: National Weather Service Chicago, IL Last Update: 4:11 am CDT Mar 21, 2026 |  |
| Today: Mostly cloudy, then gradually becoming sunny, with a high near 77. East southeast wind 5 to 10 mph becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Tonight: Mostly clear, with a low around 43. Southwest wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Sunday: A 40 percent chance of rain, mainly after 1pm. Mostly cloudy, with a temperature falling to around 39 by 5pm. Breezy, with a north northeast wind 15 to 20 mph, with gusts as high as 30 mph. Sunday Night: A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 32. Breezy, with a north wind 10 to 20 mph, with gusts as high as 30 mph. Monday: Mostly sunny, with a high near 43. North wind around 10 mph, with gusts as high as 15 mph. Monday Night: Mostly cloudy, with a low around 31. Tuesday: Mostly cloudy, with a high near 56. Tuesday Night: Mostly cloudy, with a low around 39. Wednesday: Mostly cloudy, with a high near 55. Wednesday Night: Mostly cloudy, with a low around 46. Thursday: A chance of showers. Mostly cloudy, with a high near 65. Thursday Night: A chance of showers. Mostly cloudy, with a low around 34. Friday: Partly sunny, with a high near 45. | |
| Chicago Heights IL 41.51°N 87.64°W | |
Visit your local NWS office at: https://www.weather.gov/lot |
