Coastal Waters Forecast for Munising to Grand Marais MI (LSZ250) (Text-Only)
NWS Forecast for: Munising to Grand Marais MI (LSZ250)
Issued by: National Weather Service Marquette, MI
Last Update: 501 AM EDT Mon Sep 21 2026


Early This Morning: East wind 10 to 15 knots. Mostly cloudy. Waves 2 to 4 feet subsiding to 2 to 3 feet.

Today: East wind 10 to 15 knots backing northeast by late morning. Gusts up to 23 knots. Mostly cloudy. Waves subsiding to 1 to 2 feet.

Tonight: Northeast wind less than 10 knots veering east late. Gusts up to 17 knots. Partly cloudy through midnight then clearing. Waves 1 to 2 feet.

Tuesday: East wind less than 10 knots backing northeast 10 to 15 knots in the afternoon. Gusts up to 22 knots. Sunny. Waves building to 1 to 2 feet.

Tuesday Night: East wind less than 10 knots veering southeast after midnight. Gusts up to 17 knots. Clear. Waves 1 to 2 feet.







Zone Forecast: Munising to Grand Marais MI (LSZ250)

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