| NWS Forecast for: Deer Park IL Issued by: National Weather Service Chicago, IL Last Update: 9:42 am CDT Sep 13, 2026 |  |
Today: Scattered showers, mainly between noon and 5pm. Partly sunny, with a high near 72. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. Tonight: Mostly clear, with a low around 49. Northwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph. Monday: Mostly sunny, with a high near 73. Light and variable wind becoming south southeast 10 to 15 mph in the morning. Winds could gust as high as 20 mph. Monday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Breezy, with a south southeast wind 15 to 20 mph, with gusts as high as 30 mph. Tuesday: Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. South southwest wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 50%. Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, with a high near 71. Chance of precipitation is 60%. Wednesday Night: Showers, mainly after 1am. Cloudy, with a low around 63. Thursday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 77. Thursday Night: A chance of showers. Mostly cloudy, with a low around 62. Friday: A chance of showers. Partly sunny, with a high near 74. Friday Night: A chance of showers. Mostly cloudy, with a low around 60. Saturday: A chance of showers. Partly sunny, with a high near 73. | |
| Deer Park IL 42.16°N 88.07°W | |
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