National Weather Service Marine Forecast FZUS53 KGRB

FZUS53 KGRB 310811
NSHGRB

Nearshore Marine Forecast
National Weather Service Green Bay WI
311 AM CDT Sat Oct 31 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ521-522-311600
Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI
Green Bay south of line from Oconto WI to Little Sturgeon Bay WI
311 AM CDT Sat Oct 31 2026

EARLY THIS MORNING
S wind around 5 kts. Waves 2 ft or less. A chance of showers.

TODAY
S wind 10 to 15 kts. Waves 2 ft or less. Partly sunny.

TONIGHT
S wind 5 to 10 kts. Waves 2 ft or less. Mostly cloudy.

SUNDAY
S wind 5 to 10 kts. Waves 2 ft or less. A chance of sprinkles in the morning.

SUNDAY NIGHT
S wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy in the evening then becoming mostly cloudy.

LMZ541>543-311600
Rock Island Passage to Sturgeon Bay WI
Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI
311 AM CDT Sat Oct 31 2026

EARLY THIS MORNING
S wind 5 to 10 kts. Waves 2 ft or less. A chance of showers.

TODAY
S wind 10 to 15 kts. Waves 2 to 4 ft building to 3 to 5 ft in the afternoon. Partly sunny.

TONIGHT
S wind 10 to 15 kts. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. A chance of showers.

SUNDAY
S wind 5 to 10 kts. Waves 2 ft or less. A chance of sprinkles in the morning.

SUNDAY NIGHT
S wind 5 to 10 kts. Waves 2 ft or less. Mostly cloudy.

See Lake Michigan Open Lake Forecast for Monday through Wednesday.