Marine Weather and Tide Forecast for Montague, MI
 | Sunrise 6:25 AM Sunset 9:17 PM Moonrise 2:58 PM Moonset 12:00 AM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
LMZ872 Expires:202607222115;;411368 Fzus63 Kmkx 221407 Glflm
open lake forecast for lake michigan national weather service milwaukee/sullivan wi 907 am cdt Wed jul 22 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 -
gusty northerly winds will remain gradually diminish today as high pressure around 30.1 inches will build into the northern mississippi river valley from the great plains. The high will cross southern lake michigan Thursday morning and progress into the northeastern united states Thursday night into Friday. Progression of the high will result in a south to southwest wind shift across the waters.
29.5 inch low pressure will move quickly from the canadian great plains toward quebec Friday through Saturday, maintaining south to southwest winds over lake michigan. The low will attempt to pull a cold front into the western great lakes by Sunday, with the boundary slowly advancing south across the waters through Monday. The approaching/passing front will result in returning Thunderstorm chances Saturday night through Monday, in addition to a northerly wind shift by Monday afternoon.
lmz080-669-671-673-675-777-779-870-872-874-876-878-222115- 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- 907 am cdt Wed jul 22 2026
sheboygan wi to pentwater mi south - .
Rest of today - North winds 10 to 20 kt increasing to 15 to 25 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft.
Tonight - North winds 10 to 20 kt becoming northwest 10 to 15 kt late in the evening, then diminishing to 5 to 10 kt after midnight increasing to 10 to 15 kt late. Waves 3 to 5 ft subsiding to 1 to 3 ft.
Thursday - West winds 10 to 15 kt backing to south 10 to 20 kt. Waves 1 to 3 ft.
Thursday night - South winds 10 to 20 kt becoming southwest 10 to 15 kt. Waves 1 to 3 ft.
Friday - Southwest winds 10 to 15 kt becoming south 15 to 25 kt in the afternoon. Waves 1 to 3 ft building to 2 to 4 ft.
Friday night - South winds 10 to 20 kt becoming southwest. Waves 3 to 5 ft.
Saturday - Southwest winds 10 to 20 kt becoming south to 30 kt. Waves 3 to 5 ft.
Sunday - Southwest winds 10 to 20 kt becoming south 15 to 25 kt. Waves 2 to 4 ft.
open lake forecast for lake michigan national weather service milwaukee/sullivan wi 907 am cdt Wed jul 22 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.
gusty northerly winds will remain gradually diminish today as high pressure around 30.1 inches will build into the northern mississippi river valley from the great plains. The high will cross southern lake michigan Thursday morning and progress into the northeastern united states Thursday night into Friday. Progression of the high will result in a south to southwest wind shift across the waters.
29.5 inch low pressure will move quickly from the canadian great plains toward quebec Friday through Saturday, maintaining south to southwest winds over lake michigan. The low will attempt to pull a cold front into the western great lakes by Sunday, with the boundary slowly advancing south across the waters through Monday. The approaching/passing front will result in returning Thunderstorm chances Saturday night through Monday, in addition to a northerly wind shift by Monday afternoon.
lmz080-669-671-673-675-777-779-870-872-874-876-878-222115- 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- 907 am cdt Wed jul 22 2026
sheboygan wi to pentwater mi south - .
LMZ800
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7 Day Forecast for Marine Location Near Montague, MI
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Area Discussion for Grand Rapids, MI
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FXUS63 KGRR 221033 AFDGRR
Area Forecast Discussion National Weather Service Grand Rapids MI 633 AM EDT Wed Jul 22 2026
KEY MESSAGES
- Dry weather through most of Sat with slowly increasing temps
- Next chances of rain Sat night through Mon
DISCUSSION
Issued at 259 AM EDT Wed Jul 22 2026
- Dry weather through most of Sat with slowly increasing temps
The upper trough that brought the cold front through the area yesterday remains over the area this morning. However the trough axis has shifted east of the area, putting the area under confluent flow aloft. This is leading to increasing subsidence and high pressure in the lower levels. This pattern holds through Friday, and only slowly breaks down on Saturday.
Temperatures aloft at 850 mb have dropped down to around +7C behind the cold front and under the cold pool aloft. These temperatures aloft will support max temps in the mid 70s today. We will see them slowly recover through Saturday when the 850 mb temps warm to around +16-17C, helping to bring warm air up near 90F back to the area. Dew points will slowly creep up over the area during this time frame also.
- Next chances of rain Sat night through Mon
The confluent flow aloft, and sfc ridging will move sufficiently out of the area by Saturday night. This will allow a short wave to spill over the large scale ridge axis, and additional short wave activity will be possible.
Even though the short wave activity will pick up next Sunday and Monday, low level moisture return is somewhat limited. The low level flow ahead of the short wave is not directly from the Gulf.
Evapotranspiration from the corn fields in Iowa and Illinois will help increase the moisture some. This has the potential to be rounds of storms affecting the area as these waves will be riding the heat dome to our west.
AVIATION /12Z TAFS THROUGH 12Z THURSDAY/
Issued at 633 AM EDT Wed Jul 22 2026
Just about all of the stratocumulus clouds that were around last evening have moved out of the area or dissipated. Any that are left are VFR and mostly scattered or less in coverage. We will see high-based diurnal cumulus development by early afternoon. We will also see some wind gusts up to 22 knots or so develop inland as we mix a bit of wind down.
Diurnal cumulus will diminish quickly toward sunset, and allow for clear skies once again. Winds will diminish, and go light and variable overnight.
MARINE
Issued at 259 AM EDT Wed Jul 22 2026
We will maintain the Small Craft Advisories and Beach Hazards Statements as is this morning for today. The strongest of the winds have moved by the area, but winds remain high enough to continue generating higher waves with colder air coming in over the warmer lake. The expiration time of late this evening looks very good.
After the current headlines, the winds and waves will remain well below headline thresholds with high pressure coming in. It looks like it will take until later Saturday for stronger winds and building waves to possibly require headlines.
GRR WATCHES/WARNINGS/ADVISORIES
MI...Beach Hazards Statement through this evening for MIZ037-043-050- 056-064-071.
MARINE...Small Craft Advisory until 11 PM EDT this evening for LMZ844>849.
Area Forecast Discussion National Weather Service Grand Rapids MI 633 AM EDT Wed Jul 22 2026
KEY MESSAGES
- Dry weather through most of Sat with slowly increasing temps
- Next chances of rain Sat night through Mon
DISCUSSION
Issued at 259 AM EDT Wed Jul 22 2026
- Dry weather through most of Sat with slowly increasing temps
The upper trough that brought the cold front through the area yesterday remains over the area this morning. However the trough axis has shifted east of the area, putting the area under confluent flow aloft. This is leading to increasing subsidence and high pressure in the lower levels. This pattern holds through Friday, and only slowly breaks down on Saturday.
Temperatures aloft at 850 mb have dropped down to around +7C behind the cold front and under the cold pool aloft. These temperatures aloft will support max temps in the mid 70s today. We will see them slowly recover through Saturday when the 850 mb temps warm to around +16-17C, helping to bring warm air up near 90F back to the area. Dew points will slowly creep up over the area during this time frame also.
- Next chances of rain Sat night through Mon
The confluent flow aloft, and sfc ridging will move sufficiently out of the area by Saturday night. This will allow a short wave to spill over the large scale ridge axis, and additional short wave activity will be possible.
Even though the short wave activity will pick up next Sunday and Monday, low level moisture return is somewhat limited. The low level flow ahead of the short wave is not directly from the Gulf.
Evapotranspiration from the corn fields in Iowa and Illinois will help increase the moisture some. This has the potential to be rounds of storms affecting the area as these waves will be riding the heat dome to our west.
AVIATION /12Z TAFS THROUGH 12Z THURSDAY/
Issued at 633 AM EDT Wed Jul 22 2026
Just about all of the stratocumulus clouds that were around last evening have moved out of the area or dissipated. Any that are left are VFR and mostly scattered or less in coverage. We will see high-based diurnal cumulus development by early afternoon. We will also see some wind gusts up to 22 knots or so develop inland as we mix a bit of wind down.
Diurnal cumulus will diminish quickly toward sunset, and allow for clear skies once again. Winds will diminish, and go light and variable overnight.
MARINE
Issued at 259 AM EDT Wed Jul 22 2026
We will maintain the Small Craft Advisories and Beach Hazards Statements as is this morning for today. The strongest of the winds have moved by the area, but winds remain high enough to continue generating higher waves with colder air coming in over the warmer lake. The expiration time of late this evening looks very good.
After the current headlines, the winds and waves will remain well below headline thresholds with high pressure coming in. It looks like it will take until later Saturday for stronger winds and building waves to possibly require headlines.
GRR WATCHES/WARNINGS/ADVISORIES
MI...Beach Hazards Statement through this evening for MIZ037-043-050- 056-064-071.
MARINE...Small Craft Advisory until 11 PM EDT this evening for LMZ844>849.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| 45214 | 32 mi | 104 min | 71°F | 6 ft | ||||
| 45161 | 36 mi | 64 min | NNW 14G | 63°F | 68°F | 30.32 | ||
| MKGM4 - Muskegon, MI | 37 mi | 44 min | N 17G | 64°F | 30.03 | 55°F | ||
| 45029 | 43 mi | 54 min | NNW 16G | 62°F | 67°F | 4 ft | 30.01 | 53°F |
| 45013 | 44 mi | 164 min | N 12G | 60°F | 70°F | 4 ft | 30.08 | 55°F |
| 45199 | 45 mi | 164 min | N 16 | 63°F | 71°F | 4 ft | 30.07 | |
| MLWW3 - Milwaukee, WI | 46 mi | 54 min | NNE 13G | 64°F | ||||
| PWAW3 - Port Washington, WI | 48 mi | 34 min | 0 | 67°F | 29.47 |
Wind History for Holland, MI
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Link to 5 hour of 5 minute data for KMKG
Terminal Aerodrome Forecast (TAF) for KMKG
Wind History Graph: MKG
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GEOS Local Image of great lakes
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Grand Rapids/Muskegon, MI,
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