


NWS Forecast for: Westchester IL Issued by: National Weather Service Chicago, IL Last Update: 9:07 am CDT Jul 15, 2025 | ![]() |
Today: Sunny, with a high near 90. South wind 5 to 10 mph. Tonight: Partly cloudy, with a low around 75. South wind around 5 mph. Wednesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 98. Southwest wind 5 to 10 mph. Wednesday Night: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 69. Southwest wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 60%. Thursday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 77. West wind 5 to 15 mph becoming north northeast in the afternoon. Winds could gust as high as 20 mph. Thursday Night: Mostly cloudy, with a low around 63. Friday: Mostly sunny, with a high near 79. Friday Night: Partly cloudy, with a low around 66. Saturday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 70. Sunday: A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Sunday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Monday: A chance of showers and thunderstorms. Partly sunny, with a high near 85. | |
Westchester IL 41.84°N 87.88°W | |
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