| NWS Forecast for: Chicago IL Issued by: National Weather Service Chicago, IL Last Update: 2:56 pm CDT Aug 18, 2026 | |
This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. West southwest wind around 15 mph, with gusts as high as 20 mph. Tonight: Showers and thunderstorms likely, mainly before 3am. Mostly cloudy, with a low around 67. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Wednesday: A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 77. West wind 5 to 10 mph becoming east northeast in the afternoon. Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 64. East northeast wind around 5 mph becoming calm in the evening. Thursday: Sunny, with a high near 78. Calm wind becoming east around 5 mph in the afternoon. Thursday Night: Partly cloudy, with a low around 64. Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Friday Night: A chance of showers before 1am. Partly cloudy, with a low around 66. Saturday: Mostly sunny, with a high near 78. Saturday Night: Mostly clear, with a low around 63. Sunday: Sunny, with a high near 75. Sunday Night: Partly cloudy, with a low around 62. Monday: Mostly sunny, with a high near 76. Monday Night: Partly cloudy, with a low around 64. Tuesday: Mostly sunny, with a high near 79. | |
| Chicago IL 41.86°N 87.68°W | |
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