


NWS Forecast for: Arlington Heights IL Issued by: National Weather Service Chicago, IL Last Update: 3:41 pm CDT Jun 21, 2025 | |
Tonight: Clear, with a low around 79. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 45 mph. Sunday: Sunny and hot, with a high near 96. Heat index values as high as 105. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Sunday Night: Clear, with a low around 78. South southwest wind 10 to 15 mph, with gusts as high as 25 mph. Monday: Sunny and hot, with a high near 96. Heat index values as high as 101. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Monday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. Southwest wind 5 to 15 mph, with gusts as high as 20 mph. Tuesday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92. Tuesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Wednesday: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 89. Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Thursday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 90. Thursday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 70. Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 86. Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 86. | |
Arlington Heights IL 42.09°N 87.98°W | |
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