Coastal Waters Forecast for Port Sanilac to Port Huron MI (LHZ443) (Text-Only)
NWS Forecast for: Port Sanilac to Port Huron MI (LHZ443)
Issued by: National Weather Service Detroit/Pontiac, MI
Last Update: 335 PM EDT Mon Sep 1 2025
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Tonight: Northeast winds 5 to 10 knots veering to the southeast after midnight. Clear. Waves 2 feet or less.

Tuesday: Light and variable winds becoming east 5 to 10 knots in the late morning and afternoon. Sunny. Waves 2 feet or less.

Tuesday Night: Southeast winds 5 to 10 knots becoming south 10 to 15 knots in the late evening and overnight. Mostly clear. Waves 2 feet or less.

Wednesday: South winds 10 to 15 knots increasing to 15 to 20 knots early in the afternoon. Mostly sunny. Waves 1 to 3 feet.

see lake huron open lake forecast for days 3 through 5.







Zone Forecast: Port Sanilac to Port Huron MI (LHZ443)

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