| NWS Forecast for: Arlington Heights IL Issued by: National Weather Service Chicago, IL Last Update: 3:11 pm CDT May 9, 2026 | |
Tonight: Mostly clear, with a low around 44. Northwest wind 10 to 15 mph becoming north 5 to 10 mph after midnight. Winds could gust as high as 30 mph. Sunday: Increasing clouds, with a high near 63. Northwest wind 5 to 15 mph, with gusts as high as 20 mph. Sunday Night: Mostly clear, with a low around 42. North northwest wind 5 to 10 mph becoming light north northeast in the evening. Winds could gust as high as 15 mph. Monday: Sunny, with a high near 58. East northeast wind 5 to 10 mph, with gusts as high as 20 mph. Monday Night: Partly cloudy, with a low around 42. East wind 5 to 10 mph becoming south southeast after midnight. Winds could gust as high as 15 mph. Tuesday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 72. Breezy. Chance of precipitation is 60%. Tuesday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 50. Wednesday: Mostly sunny, with a high near 62. Breezy. Wednesday Night: Partly cloudy, with a low around 44. Thursday: Sunny, with a high near 67. Thursday Night: A chance of showers. Mostly cloudy, with a low around 50. Friday: A chance of showers. Partly sunny, with a high near 76. Friday Night: Partly cloudy, with a low around 57. Saturday: Mostly sunny, with a high near 83. | |
| Arlington Heights IL 42.09°N 87.98°W | |
Visit your local NWS office at: https://www.weather.gov/lot |