FZUS63 KDTX 211339 GLFLH Open Lake Forecast for Lake Huron National Weather Service Detroit/Pontiac MI 939 AM EDT Sun Jun 21 2026 For waters beyond five nautical miles off shore on Lake Huron 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. .SYNOPSIS...Diffuse high pressure, 29.90 inches, holds over the central Great Lakes today. A compact low pressure system, 29.60 inches, will arrive in the Ohio valley tonight through Monday morning, bringing renewed rain and thunderstorm chances along with elevated winds across the southern Great Lakes. LHZ361-212145- Lake Huron from 5NM east of Mackinac Bridge to Presque Isle Lt beyond 5 NM off shore- 939 AM EDT Sun Jun 21 2026 .REST OF TODAY...West winds 5 to 10 knots in the late morning and early afternoon becoming light and variable. Waves 2 feet or less. .TONIGHT...Light and variable winds. Waves 2 feet or less. .MONDAY...North winds 5 to 10 knots backing to the west early in the afternoon. Waves 2 feet or less. .MONDAY NIGHT...Northwest winds 10 to 15 knots. Waves 2 to 4 feet. .TUESDAY...Northwest winds 5 to 10 knots backing to the west late in the afternoon...then veering to the northwest late in the evening. Waves 2 feet or less. .WEDNESDAY...Light and variable winds becoming east 5 to 10 knots . A chance of showers. Waves 2 feet or less. .THURSDAY...East winds 5 to 10 knots. A chance of showers. Waves 2 feet or less. $$ LHZ362-363-212145- Lake Huron from Presque Isle Light to Sturgeon Point MI beyond 5NM off shore- Lake Huron from Sturgeon Point to Alabaster MI beyond 5NM off shore- 939 AM EDT Sun Jun 21 2026 .REST OF TODAY...Northwest winds 5 to 10 knots late in the morning becoming light and variable. Waves 2 feet or less. .TONIGHT...Light and variable winds. Waves 2 feet or less. .MONDAY...Light and variable winds becoming north 5 to 10 knots in the late morning and afternoon. Waves 2 feet or less. .MONDAY NIGHT...Northeast winds 10 to 15 knots backing to the northwest in the late evening and overnight. Waves 1 to 3 feet building to 2 to 4 feet in the late evening and overnight. .TUESDAY...North winds 5 to 10 knots becoming light and variable. Waves 1 to 3 feet. .WEDNESDAY...Light and variable winds becoming southeast 5 to 10 knots . A chance of showers by midnight. Waves 2 feet or less. .THURSDAY...Southeast winds 5 to 10 knots. A chance of showers early in the morning. A chance of showers early in the evening. Waves 2 feet or less. $$ LHZ462>464-212145- Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore- Lake Huron from Harbor Beach to Port Sanilac beyond 5NM Off Shore- Lake Huron from Port Sanilac to Port Huron beyond 5NM Off Shore- 939 AM EDT Sun Jun 21 2026 .REST OF TODAY...Light and variable winds. Waves 2 feet or less. .TONIGHT...East winds 5 to 10 knots. 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 northeast 5 to 10 knots early in the afternoon. Waves 1 to 3 feet. .MONDAY NIGHT...North winds 10 to 15 knots decreasing to 5 to 10 knots in the late evening and overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .TUESDAY...North winds 5 to 10 knots becoming light and variable. Waves 2 feet or less. .WEDNESDAY...Light and variable winds becoming east 5 to 10 knots . A chance of showers . Waves 2 feet or less. .THURSDAY...Southeast winds 5 to 10 knots backing to the east by midnight. A chance of showers. A chance of thunderstorms early in the evening. Waves 2 feet or less. $$ LHZ461-212145- MAFOR 2115/ HURON NORTH 11700 11600 13400 11300 11100 11800. Waves 2 feet or less. HURON SOUTH 11700 14300 12200 11100. Waves 2 feet or less. $$ SS Experimental modernized open lake forecast is available online at weather.gov/dtx/glftable (all lower case) Graphical marine forecasts are available online at weather.gov/greatlakes (all lower case)