Chart / Forecasts

Lake Huron from Port Austin to Harbor Beach beyond 5NM Off Shore

LHZ462 · Open Lake Forecast · National Weather Service Detroit/Pontiac MI · Issued 358 PM EDT Sat Oct 3 2026
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Forecast
Tonight
Light and variable winds becoming southeast 5 to 10 knots late in the evening...then increasing to 10 to 15 knots after midnight. Waves 2 feet or less.
Sunday
South winds 5 to 10 knots becoming southwest 10 to 15 knots in the late morning and afternoon. Waves 1 to 3 feet.
Sunday Night
Northwest winds 15 to 20 knots. Waves 5 to 7 feet. Waves occasionally around 10 feet.
Monday
Northwest winds 20 to 25 knots decreasing to 10 to 15 knots. Waves 5 to 7 feet. Waves occasionally around 10 feet.
Monday Night
Northwest winds 10 to 15 knots decreasing to 5 to 10 knots in the late evening and overnight. Waves 4 to 6 feet. Waves occasionally around 8 feet.
Tuesday
West winds 5 to 10 knots backing to the southwest late in the morning...then becoming south 15 to 20 knots late in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet late in the evening.
Wednesday
Southwest winds 15 to 20 knots becoming west 10 to 15 knots. Waves 2 to 4 feet.
Thursday
West winds 10 to 15 knots. Waves 1 to 3 feet.
Synopsis
High pressure, 30.30 inches, will quickly exit east of the region Tonight. Low pressure of 29.62 inches then tracks east across southern Ontario Tonight into Sunday, intensifying to around 29.44 inches as it tracks east across the James Bay area Sunday night. This low will drive a cold front across the region on Sunday, resulting in south winds to start the day becoming west and northwesterly throughout Sunday afternoon and evening. Northwest winds increase to around 25 to 30 knots Sunday night into Monday morning, with the strongest winds across the northern third of Lake Huron where we an occasional gust to 35 knots cannot be ruled out.
Source: National Weather Service Open Lake Forecast (GLF), issued 358 PM EDT Sat Oct 3 2026, valid until Sun, 04 Oct 2026 04:00 UTC. Original text · All zones