7-Day Forecast 42.09°N 87.98°W (Text-Only)
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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