7-Day Forecast 41.82°N 87.94°W (Text-Only)
NWS Forecast for: Oak Brook IL
Issued by: National Weather Service Chicago, IL
Last Update: 2:51 pm CDT Jul 10, 2026




Tonight: Mostly cloudy, with a low around 66. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

Saturday: Mostly sunny, with a high near 84. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

Saturday Night: Partly cloudy, with a low around 67. East northeast wind 5 to 10 mph.

Sunday: Sunny, with a high near 87. East wind 5 to 10 mph.

Sunday Night: Mostly clear, with a low around 68. East northeast wind 5 to 10 mph becoming light in the evening.

Monday: Sunny, with a high near 90.

Monday Night: Clear, with a low around 70.

Tuesday: Sunny, with a high near 93.

Tuesday Night: Mostly clear, with a low around 74.

Wednesday: Sunny, with a high near 92.

Wednesday Night: Mostly clear, with a low around 72.

Thursday: Mostly sunny, with a high near 89.

Thursday Night: Partly cloudy, with a low around 70.

Friday: A chance of showers and thunderstorms. Mostly sunny, with a high near 87.



Oak Brook IL
 41.82°N 87.94°W

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