Coastal Waters Forecast for Ontonagon to Upper Entrance of Portage Canal MI (LSZ242) (Text-Only)
NWS Forecast for: Ontonagon to Upper Entrance of Portage Canal MI (LSZ242)
Issued by: National Weather Service Marquette, MI
Last Update: 1101 PM EDT Tue May 19 2026
Print


Rest Of Tonight: Northwest wind 10 to 15 knots. Mostly clear. Waves 2 to 3 feet subsiding to 1 to 2 feet.

Wednesday: Northwest wind less than 10 knots backing west by late morning. Sunny. Waves 1 to 2 feet.

Wednesday Night: Southeast wind less than 10 knots veering south after midnight. Clear. Waves calm to 1 foot.

Thursday: South wind less than 10 knots backing east in the afternoon. Sunny. Waves calm to 1 foot.







Zone Forecast: Ontonagon to Upper Entrance of Portage Canal MI (LSZ242)

Visit your local NWS office at: https://www.weather.gov/mqt/