| NWS Forecast for: Prospect Heights IL Issued by: National Weather Service Chicago, IL Last Update: 1:35 am CDT Oct 17, 2026 |  |
Overnight: Mostly clear, with a low around 37. North wind around 10 mph, with gusts as high as 20 mph. Saturday: Sunny, with a high near 57. North northwest wind 5 to 10 mph becoming southwest in the afternoon. Saturday Night: Mostly clear, with a low around 40. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. Sunday: Sunny, with a high near 62. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Sunday Night: Mostly clear, with a low around 42. South southwest wind 5 to 10 mph, with gusts as high as 15 mph. Monday: Sunny, with a high near 67. Monday Night: Partly cloudy, with a low around 45. Tuesday: Sunny, with a high near 69. Tuesday Night: Mostly clear, with a low around 48. Wednesday: Sunny, with a high near 72. Wednesday Night: Partly cloudy, with a low around 51. Thursday: Mostly sunny, with a high near 74. Thursday Night: Partly cloudy, with a low around 53. Friday: Mostly sunny, with a high near 74. | |
| Prospect Heights IL 42.09°N 87.92°W | |
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