Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.
Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >
| NWS Forecast for: Northerly Island to Calumet Harbor IL (LMZ742) Issued by: National Weather Service Chicago, IL Last Update: 939 AM CDT Wed Sep 16 2026 | |
Rest Of Today: Northeast winds 10 to 15 kt. A few showers. Waves 2 to 4 feet. Tonight: Northeast winds around 10 kt becoming variable at less than 10 kt. Scattered showers and thunderstorms. Waves 2 to 4 ft subsiding to 1 to 3 ft. Thursday: Northwest winds around 10 kt becoming north in the afternoon. Chance of showers in the morning. Waves 1 to 2 ft. Thursday Night: North winds around 10 kt becoming northeast. Mostly cloudy. Waves 1 to 3 ft. | |
| Zone Forecast: Northerly Island to Calumet Harbor IL (LMZ742) | |
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