Marine Weather and Tide Forecast for Sheboygan, WI
 | Sunrise 6:36 AM Sunset 4:32 PM Moonrise 7:05 AM Moonset 4:46 PM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
LMZ669 Expires:202611082215;;476874 Fzus63 Kmkx 081445 Glflm
open lake forecast for lake michigan national weather service milwaukee/sullivan wi 845 am cst Sun nov 8 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 -
low pressure of 29.5 inches crossing ontario is dragging a weak cold front south through lake michigan, shifting winds from southwest to west-northwest. Winds are expected to strengthen behind this front, bringing gusts around 30 kt. Winds will diminish tonight as a ridge of high pressure around 30.1 inches moves into the region. Winds become southwesterly again on Monday as an additional low pressure system moves through the canadian prairies.
winds will shift northwesterly Monday night as low pressure exits into ontario and another cold front sweeps across the upper great lakes. Winds then shift westerly Tuesday into Tuesday night before turning northerly as low pressure deepens in the southeast u.s. On Wednesday. Wednesday into Thursday, expect a strong band of lake effect snow and rain to develop north to south as low pressure deepens to 29.4 inches as it crosses indiana and ohio. Northerly gales are possible on Thursday.
lmz080-669-671-673-675-777-779-870-872-874-876-878-082215- 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- 845 am cst Sun nov 8 2026
sheboygan wi to pentwater mi south - .
Rest of today - West winds to 30 kt becoming northwest. Waves 7 to 10 ft occasionally to 13 ft.
Tonight - Northwest winds to 30 kt diminishing to 10 to 20 kt. Waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft occasionally to 9 ft.
Monday - Northwest winds 10 to 15 kt becoming west late in the morning, then becoming southwest 10 to 20 kt early in the afternoon increasing to 15 to 25 kt late. Waves 3 to 5 ft subsiding to 2 to 4 ft.
Monday night - Southwest winds 15 to 25 kt becoming west 10 to 20 kt. Waves 4 to 7 ft occasionally to 9 ft.
Tuesday - Northwest winds 10 to 20 kt becoming west 10 to 15 kt. Waves 3 to 5 ft subsiding to 2 to 4 ft.
Tuesday night - Northwest winds 10 to 15 kt. Waves 1 to 3 ft.
Wednesday - North winds 5 to 10 kt increasing to 10 to 15 kt. Waves 1 to 2 ft building to 2 to 4 ft.
Thursday - North winds to 30 kt increasing to gales to 35 kt. Chance of rain. Waves 6 to 9 ft occasionally to 12 ft.
open lake forecast for lake michigan national weather service milwaukee/sullivan wi 845 am cst Sun nov 8 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.
low pressure of 29.5 inches crossing ontario is dragging a weak cold front south through lake michigan, shifting winds from southwest to west-northwest. Winds are expected to strengthen behind this front, bringing gusts around 30 kt. Winds will diminish tonight as a ridge of high pressure around 30.1 inches moves into the region. Winds become southwesterly again on Monday as an additional low pressure system moves through the canadian prairies.
winds will shift northwesterly Monday night as low pressure exits into ontario and another cold front sweeps across the upper great lakes. Winds then shift westerly Tuesday into Tuesday night before turning northerly as low pressure deepens in the southeast u.s. On Wednesday. Wednesday into Thursday, expect a strong band of lake effect snow and rain to develop north to south as low pressure deepens to 29.4 inches as it crosses indiana and ohio. Northerly gales are possible on Thursday.
lmz080-669-671-673-675-777-779-870-872-874-876-878-082215- 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- 845 am cst Sun nov 8 2026
sheboygan wi to pentwater mi south - .
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7 Day Forecast for Marine Location Near Sheboygan, WI
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Area Discussion for Milwaukee/Sullivan, WI
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FXUS63 KMKX 081205 AFDMKX
Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 605 AM CST Sun Nov 8 2026
KEY MESSAGES
- Temperatures will return to above normal for Today through Tuesday. Generally dry conditions are expected, with a chance for some fog development late tonight into early Monday morning.
- A colder airmass returns to the region later this week. There is a potential for lake effect rain showers with some snowflakes mixing in.
UPDATE
Issued 605 AM CST Sun Nov 8 2026
A surface low pressure trough is lowly making its way through southern WI this morning. Expect the modest west-southwest winds to become west-northwest and gusty this afternoon. Gusts up to 28 mph are expected near Lake Michigan, with lower gusts inland. With plenty of sunshine, expect high temperatures to get into the upper 50s.
Cronce
SHORT TERM
Issued 100 AM CST CST Sun Nov 8 2026
Today and Tonight:
Low pressure tracks east across Ontario Canada today, dragging a cold front across WI. A southwest breeze continues predawn this morning ahead of the front, advecting some higher dewpoints into the region. The moist advection on these winds is no longer expected to produce fog or low stratus clouds, likely a combination of the high-altitude clouds and continued southwest breeze working to keep the boundary layer from saturating. Later this morning a cold front crosses the region, with 20-30 mph gusts and sunny skies through the afternoon.
Winds subside tonight as a weak surface ridge passes overhead.
Inland low temps in the low 30s, slightly warmer near Lake Michigan. Though the post cold front winds allow drier air to return and high-altitude clouds build back into the region tonight, the calm winds and gaps in the clouds could result in the formation of ground fog, particularly for inland areas. Far eastern WI will see slightly warmer low temps, as well as a land-breeze circulation (slight offshore winds), likely reducing fog potential.
Sheppard
LONG TERM
Issued 100 AM CST CST Sun Nov 8 2026
Monday through Saturday:
Another low pressure system tracking east into Ontario Canada on Monday will work with high pressure across the Lower Mississippi River Valley to drive breezy southwest winds on Monday, with highs in the mid to upper 50s. A weak cold front follows Monday night, with light northwest winds and slightly warmer (around 60) high temperatures for Tuesday.
Into Wednesday, high pressure slides southeast across Manitoba and a deepening trough in the jet dives from the Dakotas towards the Ohio River Valley. Low pressure develops near the southern tip of IL in response to the trough, with both features tracking east. QG ascent from the approaching trough coupled with some Lake Superior boundary layer moisture could result in some light rain Wednesday (15-30% chance). Highs in the low 50s.
As both pressure systems intensify and the low exits east, north winds become gusty across the lake Wednesday night into Thursday.
Lake effect showers will become possible across far eastern WI at times Wednesday night through Friday. High temperatures dive to the 40s, with lows in the upper 20s to 30s.
Sheppard
AVIATION
Issued 605 AM CST Sun Nov 8 2026
Steady west-southwest winds will become west-northwest by early afternoon with gusts up to 25 kt near Lake Michigan and 20 kt inland. Skies will remain mostly clear through tonight. Since light winds will return tonight, patchy fog is possible early Monday morning.
Cronce
MARINE
Issued 605 AM CST Sun Nov 8 2026
Low pressure of 29.5 inches crossing Ontario will drag a trough across Lake Michigan this morning and steady southwest winds will become northwest with gusts to 30 knots by the afternoon. Winds will diminish overnight as a ridge of high pressure around 30.1 inches moves into the region. Winds become southwesterly again on Monday as an additional low pressure system moves through the Canadian Prairies.
Winds will shift northwesterly Monday night as low pressure exits into Ontario and another cold front sweeps across the Upper Great Lakes. Winds then shift westerly Tuesday into Tuesday night before turning northerly as low pressure deepens in the Southeast U.S. on Wednesday. Wednesday into Thursday, expect a strong band of lake effect snow and rain to develop north to south as low pressure deepens to 29.4 inches as it crosses Indiana and Ohio.
Northerly gales are possible on Thursday.
The Small Craft Advisory for the gusty westerly winds is in effect until 6 PM tonight.
Cronce
MKX WATCHES/WARNINGS/ADVISORIES
WI...None.
LM
Small Craft Advisory
LMZ643-LMZ644-LMZ645-LMZ646 until 6 PM Sunday.
Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 605 AM CST Sun Nov 8 2026
KEY MESSAGES
- Temperatures will return to above normal for Today through Tuesday. Generally dry conditions are expected, with a chance for some fog development late tonight into early Monday morning.
- A colder airmass returns to the region later this week. There is a potential for lake effect rain showers with some snowflakes mixing in.
UPDATE
Issued 605 AM CST Sun Nov 8 2026
A surface low pressure trough is lowly making its way through southern WI this morning. Expect the modest west-southwest winds to become west-northwest and gusty this afternoon. Gusts up to 28 mph are expected near Lake Michigan, with lower gusts inland. With plenty of sunshine, expect high temperatures to get into the upper 50s.
Cronce
SHORT TERM
Issued 100 AM CST CST Sun Nov 8 2026
Today and Tonight:
Low pressure tracks east across Ontario Canada today, dragging a cold front across WI. A southwest breeze continues predawn this morning ahead of the front, advecting some higher dewpoints into the region. The moist advection on these winds is no longer expected to produce fog or low stratus clouds, likely a combination of the high-altitude clouds and continued southwest breeze working to keep the boundary layer from saturating. Later this morning a cold front crosses the region, with 20-30 mph gusts and sunny skies through the afternoon.
Winds subside tonight as a weak surface ridge passes overhead.
Inland low temps in the low 30s, slightly warmer near Lake Michigan. Though the post cold front winds allow drier air to return and high-altitude clouds build back into the region tonight, the calm winds and gaps in the clouds could result in the formation of ground fog, particularly for inland areas. Far eastern WI will see slightly warmer low temps, as well as a land-breeze circulation (slight offshore winds), likely reducing fog potential.
Sheppard
LONG TERM
Issued 100 AM CST CST Sun Nov 8 2026
Monday through Saturday:
Another low pressure system tracking east into Ontario Canada on Monday will work with high pressure across the Lower Mississippi River Valley to drive breezy southwest winds on Monday, with highs in the mid to upper 50s. A weak cold front follows Monday night, with light northwest winds and slightly warmer (around 60) high temperatures for Tuesday.
Into Wednesday, high pressure slides southeast across Manitoba and a deepening trough in the jet dives from the Dakotas towards the Ohio River Valley. Low pressure develops near the southern tip of IL in response to the trough, with both features tracking east. QG ascent from the approaching trough coupled with some Lake Superior boundary layer moisture could result in some light rain Wednesday (15-30% chance). Highs in the low 50s.
As both pressure systems intensify and the low exits east, north winds become gusty across the lake Wednesday night into Thursday.
Lake effect showers will become possible across far eastern WI at times Wednesday night through Friday. High temperatures dive to the 40s, with lows in the upper 20s to 30s.
Sheppard
AVIATION
Issued 605 AM CST Sun Nov 8 2026
Steady west-southwest winds will become west-northwest by early afternoon with gusts up to 25 kt near Lake Michigan and 20 kt inland. Skies will remain mostly clear through tonight. Since light winds will return tonight, patchy fog is possible early Monday morning.
Cronce
MARINE
Issued 605 AM CST Sun Nov 8 2026
Low pressure of 29.5 inches crossing Ontario will drag a trough across Lake Michigan this morning and steady southwest winds will become northwest with gusts to 30 knots by the afternoon. Winds will diminish overnight as a ridge of high pressure around 30.1 inches moves into the region. Winds become southwesterly again on Monday as an additional low pressure system moves through the Canadian Prairies.
Winds will shift northwesterly Monday night as low pressure exits into Ontario and another cold front sweeps across the Upper Great Lakes. Winds then shift westerly Tuesday into Tuesday night before turning northerly as low pressure deepens in the Southeast U.S. on Wednesday. Wednesday into Thursday, expect a strong band of lake effect snow and rain to develop north to south as low pressure deepens to 29.4 inches as it crosses Indiana and Ohio.
Northerly gales are possible on Thursday.
The Small Craft Advisory for the gusty westerly winds is in effect until 6 PM tonight.
Cronce
MKX WATCHES/WARNINGS/ADVISORIES
WI...None.
LM
Small Craft Advisory
LMZ643-LMZ644-LMZ645-LMZ646 until 6 PM Sunday.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| 45210 | 25 mi | 69 min | 52°F | 5 ft | ||||
| SGNW3 - Sheboygan, WI | 27 mi | 45 min | W 13G | 47°F | 29.89 | 42°F | ||
| PWAW3 - Port Washington, WI | 42 mi | 30 min | WNW 9.9 | 49°F | ||||
| BSBM4 - Big Sable Point, MI | 43 mi | 85 min | W 15G | 49°F | 29.88 | |||
| LDTM4 - 9087023 - Ludington, MI | 43 mi | 47 min | W 8G |
Wind History for Ludington, MI
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