| NWS Forecast for: Chicago Heights IL Issued by: National Weather Service Chicago, IL Last Update: 1:31 am CDT Mar 23, 2026 | |
| Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 40. North wind 10 to 15 mph, with gusts as high as 20 mph. Tonight: Increasing clouds, with a low around 29. East northeast wind around 5 mph becoming calm after midnight. Tuesday: Partly sunny, with a high near 52. South wind 5 to 10 mph. Tuesday Night: Mostly cloudy, with a low around 37. South southeast wind around 5 mph, with gusts as high as 15 mph. Wednesday: Partly sunny, with a high near 66. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Wednesday Night: Mostly cloudy, with a low around 51. Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 75. Thursday Night: A chance of showers before 1am. Mostly cloudy, with a low around 33. Friday: Partly sunny, with a high near 40. Friday Night: Mostly clear, with a low around 27. Saturday: Sunny, with a high near 51. Saturday Night: Mostly clear, with a low around 35. Sunday: Partly sunny, with a high near 58. | |
| Chicago Heights IL 41.51°N 87.64°W | |
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