| NWS Forecast for: Oak Brook IL Issued by: National Weather Service Chicago, IL Last Update: 4:51 pm CDT Jul 18, 2026 |  |
Tonight: Patchy smoke. Partly cloudy, with a low around 68. Northeast wind 5 to 15 mph. Sunday: Areas of smoke. Mostly sunny, with a high near 82. East northeast wind 5 to 10 mph. Sunday Night: Patchy smoke before 9pm. Mostly clear, with a low around 65. East northeast wind around 5 mph becoming south after midnight. Monday: Increasing clouds, with a high near 87. South southwest wind 5 to 15 mph, with gusts as high as 20 mph. Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Tuesday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%. Tuesday Night: Mostly clear, with a low around 64. Wednesday: Sunny, with a high near 78. Wednesday Night: Mostly clear, with a low around 61. Thursday: Sunny, with a high near 82. Thursday Night: Partly cloudy, with a low around 64. Friday: Mostly sunny, with a high near 83. Friday Night: Mostly cloudy, with a low around 67. Saturday: Mostly sunny, with a high near 86. | |
| Oak Brook IL 41.82°N 87.94°W | |
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