| NWS Forecast for: Park Forest IL Issued by: National Weather Service Chicago, IL Last Update: 1:11 pm CDT Jul 18, 2026 | |
This Afternoon: Showers and thunderstorms. Some of the storms could be severe. High near 88. Heat index values as high as 98. Northwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Some of the storms could be severe. Patchy smoke. Partly cloudy, with a low around 66. Northeast wind 5 to 10 mph. Sunday: Patchy smoke. Mostly sunny, with a high near 81. Northeast wind 5 to 10 mph. Sunday Night: Patchy smoke before 11pm, then patchy smoke after 3am. Mostly clear, with a low around 62. East northeast wind around 5 mph becoming south southeast after midnight. Monday: Patchy smoke before 7am. Partly sunny, with a high near 85. South southwest wind 5 to 10 mph, with gusts as high as 15 mph. Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 70%. Tuesday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Tuesday Night: Mostly clear, with a low around 63. Wednesday: Sunny, with a high near 77. Wednesday Night: Mostly clear, with a low around 58. Thursday: Sunny, with a high near 80. Thursday Night: Partly cloudy, with a low around 60. Friday: Mostly sunny, with a high near 82. | |
| Park Forest IL 41.46°N 87.71°W | |
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