FZUS53 KDTX 211936 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 336 PM EDT Sun Jun 21 2026 For waters within five nautical miles of shore Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LHZ422-220345- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 336 PM EDT Sun Jun 21 2026 .TONIGHT...East winds 5 to 10 knots becoming southeast 10 to 15 knots in the late evening and early morning, then diminishing to 5 to 10 knots early in the morning. Cloudy. A chance of showers after midnight. Waves 2 feet or less. .MONDAY...Northeast winds 5 to 10 knots increasing to 10 to 15 knots in the late morning and afternoon. Mostly cloudy with a chance of showers early in the morning, then mostly sunny in the late morning and afternoon. Waves 2 feet or less. .MONDAY NIGHT...Northeast winds 10 to 15 knots becoming north 5 to 10 knots in the late evening and early morning, then becoming northwest 10 to 15 knots after midnight. Clear. Waves 2 feet or less. .TUESDAY...North winds 5 to 10 knots veering to the northeast early in the afternoon. Sunny. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-220345- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 336 PM EDT Sun Jun 21 2026 .TONIGHT...Southeast winds 10 to 15 knots diminishing to 5 to 10 knots early in the morning. Cloudy. A chance of showers after midnight. Waves 2 feet or less. .MONDAY...Northeast winds 5 to 10 knots increasing to 10 to 15 knots in the late morning and afternoon. Mostly cloudy with a slight chance of showers early in the morning, then mostly sunny in the late morning and afternoon. Waves 2 feet or less. .MONDAY NIGHT...North winds 10 to 15 knots backing to the northwest after midnight. Clear. Waves 1 to 3 feet. .TUESDAY...North winds 10 to 15 knots diminishing to 5 to 10 knots in the late morning and early afternoon, then becoming northeast 10 to 15 knots early in the afternoon. Mostly sunny. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-220345- Port Austin to Harbor Beach MI- 336 PM EDT Sun Jun 21 2026 .TONIGHT...Southeast winds 10 to 15 knots diminishing to 5 to 10 knots in the late evening and overnight. Cloudy. A chance of showers after midnight. Waves 2 feet or less. .MONDAY...East winds 5 to 10 knots backing to the northeast in the late morning and early afternoon, then becoming north 10 to 15 knots early in the afternoon. Mostly cloudy with a slight chance of showers early in the morning, then partly cloudy in the late morning and afternoon. Waves 2 feet or less. .MONDAY NIGHT...North winds 5 to 10 knots increasing to 10 to 15 knots in the late evening and overnight. Clear. Waves 1 to 3 feet. .TUESDAY...North winds 10 to 15 knots diminishing to 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-220345- Harbor Beach to Port Sanilac MI- 336 PM EDT Sun Jun 21 2026 .TONIGHT...Southeast winds 5 to 10 knots. Cloudy. A chance of showers after midnight. Waves 2 feet or less. .MONDAY...East winds 5 to 10 knots backing to the northeast in the late morning and early afternoon, then becoming north 10 to 15 knots early in the afternoon. Mostly cloudy with a chance of showers early in the morning, then partly cloudy in the late morning and afternoon. Waves 2 feet or less. .MONDAY NIGHT...North winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. Mostly clear. Waves 1 to 3 feet. .TUESDAY...Northwest winds 5 to 10 knots becoming north 10 to 15 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-220345- Port Sanilac to Port Huron MI- 336 PM EDT Sun Jun 21 2026 .TONIGHT...East winds 5 to 10 knots. Cloudy. Rain showers likely after midnight. Waves 2 feet or less. .MONDAY...East winds 5 to 10 knots becoming northeast 10 to 15 knots in the late morning and early afternoon, then becoming north 15 to 20 knots early in the afternoon. Mostly cloudy with showers likely early in the morning, then mostly cloudy with a slight chance of showers in the late morning and early afternoon. Mostly sunny early in the afternoon. Waves 1 to 3 feet. .MONDAY NIGHT...North winds 10 to 15 knots. Clear. Waves 1 to 3 feet. .TUESDAY...Northwest winds 5 to 10 knots becoming north 10 to 15 knots in the late morning and afternoon. Mostly sunny. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-220345- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 336 PM EDT Sun Jun 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH MONDAY AFTERNOON... .TONIGHT...Southeast winds 5 to 10 knots becoming east 15 to 20 knots. Cloudy. A chance of showers in the evening, then showers likely after midnight. Locally heavy rainfall possible after midnight. Waves 1 to 3 feet building to 3 to 5 feet early in the morning. Waves occasionally around 7 feet. .MONDAY...Northeast winds 20 to 25 knots diminishing to 15 to 20 knots in the late morning and afternoon. Mostly cloudy until late afternoon becoming partly cloudy. Showers likely early in the morning, then a chance of showers in the late morning and early afternoon. Waves 3 to 5 feet subsiding to 2 to 4 feet early in the afternoon. Waves occasionally around 7 feet. .MONDAY NIGHT...Northeast winds 10 to 15 knots becoming north 5 to 10 knots in the late evening and overnight. Mostly clear. Waves 2 feet or less. .TUESDAY...Northwest winds 5 to 10 knots. Sunny. Waves 2 feet or less. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 66 degrees. $$ AM You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes