Great Lakes Forecast
Issued by NWS
Issued by NWS
326 FZUS63 KMKX 261402 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 902 AM CDT Mon Oct 26 2026 FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON Lake Michigan. Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the wave, along with the average height of the highest 10% of the waves which will occasionally be encountered. .SYNOPSIS... High pressure around 30.6 inches tracking from Manitoba to the northern Great Lakes through tonight will support modest to breezy north to northeast winds. Look for winds to become southeasterly Tuesday, as low pressure around 30.0 inches tracks from southwest Minnesota to the Lake Superior region. Modest south winds are expected for Wednesday, as the next low pressure system around 29.9 inches takes a similar path across the Midwest. Expect northerly winds for the end of the week, behind the low pressure systems. LMZ261-362-364-366-563-565-567-868-262130- Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM offshore to Mid Lake- Lake Michigan South of a line from Seul Choix Point to the Mackinac Bridge and north of a line from Charlevoix MI to South Fox Island 5 NM offshore- Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to Mid Lake- Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to Mid Lake- Lake Michigan from Rock Island Passage to Sturgeon Bay WI- Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to Mid Lake- Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to Mid Lake- Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid Lake- 902 AM CDT Mon Oct 26 2026 SHEBOYGAN WI TO PENTWATER MI NORTH... .REST OF TODAY...North winds 10 to 20 kt increasing to 15 to 25 kt. Isolated showers through mid morning. Waves 4 to 6 ft occasionally to 8 ft. .TONIGHT...Northeast winds 10 to 20 kt becoming east. Slight chance of rain showers overnight. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .TUESDAY...Southeast winds 10 to 20 kt. Waves 3 to 5 ft. .TUESDAY NIGHT...Southeast winds 15 to 25 kt becoming south 10 to 20 kt. Waves 3 to 5 ft. .WEDNESDAY...South winds 10 to 20 kt. Waves 3 to 5 ft. .WEDNESDAY NIGHT...South winds 15 to 25 kt becoming southwest to 30 kt. Waves 3 to 5 ft. .THURSDAY...Southwest winds to 30 kt becoming west 10 to 20 kt. Chance of showers. Waves 3 to 5 ft. .FRIDAY...Northwest winds 10 to 15 kt. Waves 1 to 2 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-262130- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 902 AM CDT Mon Oct 26 2026 SHEBOYGAN WI TO PENTWATER MI SOUTH... .REST OF TODAY...Northeast winds 10 to 20 kt increasing to 15 to 25 kt. Scattered sprinkles this afternoon. Waves 4 to 7 ft occasionally to 9 ft. .TONIGHT...Northeast winds 15 to 25 kt becoming east 10 to 20 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft. .TUESDAY...Southeast winds 10 to 20 kt. Waves 4 to 6 ft occasionally to 8 ft. .TUESDAY NIGHT...Southeast winds 10 to 20 kt becoming south. Waves 3 to 5 ft. .WEDNESDAY...South winds 10 to 20 kt. Waves 2 to 4 ft. .WEDNESDAY NIGHT...South winds 10 to 20 kt. Waves 3 to 5 ft. .THURSDAY...Southwest winds 10 to 20 kt. Chance of showers. Waves 4 to 6 ft occasionally to 8 ft. .FRIDAY...North winds 5 to 10 kt becoming northeast 10 to 15 kt. Waves 1 to 2 ft. $$ LMZ761-262130- MAFOR 2616/ MICHIGAN NORTH 11820 11830 11130 12120 11220 11210 11320. Waves 3 to 5 feet this afternoon. Waves 3 to 5 feet subsiding to 2 to 4 feet tonight. Waves 1 to 3 feet building to 2 to 4 feet Tuesday morning. MICHIGAN SOUTH 11120 12130 11120 13220 11320. Waves 3 to 6 feet this afternoon. Waves 3 to 6 feet subsiding to 2 to 4 feet tonight. Waves 3 to 5 feet Tuesday morning. $$ Wood Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes