Coastal Storm Impacting the Mid-Atlantic; Remaining Unseasonably Warm in the Central U.S.
A coastal storm will bring widespread rain, gusty winds, shallow coastal flooding, rip currents, large surf and possible areal flooding over the Mid-Atlantic region through Wednesday. Unseasonably warm to hot temperatures persist in the mid to upper Mississippi Valley, Ohio Valley, and into the Great Lakes and Northeast U.S. through Friday. Read More >
| NWS Forecast for: Winthrop Harbor to Wilmette Harbor IL (LMZ740) Issued by: National Weather Service Chicago, IL Last Update: 250 PM CDT Tue Sep 16 2025 | |
| Tonight: Northeast winds 5 to 10 kt. Mostly clear. Waves around 1 ft. Wednesday: North winds 5 to 10 kt becoming northeast in the afternoon. Mostly sunny. Waves around 1 ft. Wednesday Night: East winds 5 to 10 kt becoming southeast overnight. Mostly clear. Waves around 1 ft. Thursday: East winds 5 to 10 kt. Mostly sunny. Waves around 1 ft. | |
| Zone Forecast: Winthrop Harbor to Wilmette Harbor IL (LMZ740) | |
Visit your local NWS office at: https://www.weather.gov/lot |