Last Update: 503 PM EDT Mon May 18 2026

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Marquette, MI Local Forecast Office

6NM SSE Thompson MI

Marine Zone Forecast

Late This Afternoon
South wind 10 to 15 knots. Cloudy. Patchy fog. Waves 2 to 4 feet.
Tonight
South wind 5 to 15 knots increasing to 15 to 20 knots late. Cloudy. A slight chance of showers and thunderstorms through late evening, then a chance of showers and thunderstorms by midnight. Areas of dense fog through the night. Waves subsiding to 2 to 3 feet, then building to 3 to 6 feet occasionally to 8 feet.
Tuesday
Southwest wind 15 to 20 knots veering northwest late. Cloudy. Areas of dense fog through mid morning. Patchy fog by late morning. A chance of showers through mid morning. A slight chance of thunderstorms through early afternoon. A slight chance of showers by late morning. Waves subsiding to 2 to 4 feet.
Tuesday Night
Northwest wind 10 to 15 knots with gusts up to 22 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves subsiding to 1 to 2 feet.
Wednesday
Northwest wind 10 to 15 knots veering north 5 to 15 knots in the afternoon. Mostly sunny. Waves 1 to 2 feet.



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503 PM EDT Mon May 18 2026
 
 

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