Marine Weather and Tide Forecast for Pentwater, MI
 | Sunrise 7:26 AM Sunset 5:30 PM Moonrise 4:44 AM Moonset 3:56 PM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
LMZ848 Whitehall To Pentwater Mi- 1043 Pm Est Fri Nov 6 2026
.small craft advisory in effect until 4 am est Saturday - .
Rest of tonight - North winds 15 to 25 knots. Cloudy. Isolated rain showers late in the evening. Waves 5 to 7 feet.
Saturday - Northwest winds 15 to 20 knots backing west early in the afternoon. Mostly Sunny. Waves 3 to 5 feet subsiding to 2 to 4 feet in the late morning and afternoon.
Saturday night - West winds to 30 knots. Partly cloudy. Waves 4 to 6 feet building to 5 to 7 feet after midnight.
Sunday - West winds to 30 knots. Mostly Sunny. Waves 6 to 9 feet.
Sunday night - Northwest winds to 30 knots decreasing to 15 to 20 knots after midnight. Partly cloudy. Waves 6 to 9 feet subsiding to 3 to 5 feet after midnight.
Monday - West winds 10 to 15 knots backing southwest 15 to 25 knots in the late morning and afternoon. Mostly Sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and early afternoon, then building to 3 to 5 feet early in the afternoon.
Tuesday - West winds 20 to 25 knots. Sunny. Waves 3 to 5 feet.
Veterans day - North winds 10 to 20 knots. Partly Sunny. Waves 2 to 4 feet.
LMZ800
No data
No data
7 Day Forecast for Marine Location Near Pentwater, MI
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Area Discussion for Grand Rapids, MI
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FXUS63 KGRR 062328 AFDGRR
Area Forecast Discussion National Weather Service Grand Rapids MI 628 PM EST Fri Nov 6 2026
KEY MESSAGES
- Upper Low Moves East with Rain showers ending tonight
- Another Upper low and showers late week
DISCUSSION
Issued at 205 PM EST Fri Nov 6 2026
- Upper Low Moves East with Rain showers ending tonight
Lake effect rain showers will taper off overnight as the upper low moves east followed by height rises and general subsidence for the weekend with fair and cool weather through Sunday. A clipper will move north of Lower Michigan on Sunday but deep moisture and precip will remain north of the forecast area. Fair weather continues through the middle of the week in fast quasi-zonal flow.
- Another Upper low and showers late week
A northern stream shortwave trough tops the western CONUS upper ridging and digs out a longwave trough across the eastern CONUS by Thursday then merges with upper low over eastern Canada. The resulting height falls across the Great Lakes region will result in cooler temperatures with lake enhanced showers by the end of next week.
AVIATION /00Z TAFS THROUGH 00Z SUNDAY/
Issued at 628 PM EST Fri Nov 6 2026
We will remain under mostly cloudy skies on the back (west) side of a slow-moving low pressure system until Saturday afternoon.
Currently a mixture of MVFR and VFR ceilings should deteriorate to widespread MVFR tonight as a lobe of lower clouds and light precipitation pivots through from the north. Clouds are favored to scatter out from west to east during Saturday afternoon as high pressure noses in.
GRR WATCHES/WARNINGS/ADVISORIES
MI...None.
MARINE...Small Craft Advisory until 11 AM EST Saturday for LMZ844>846.
Small Craft Advisory until 4 AM EST Saturday for LMZ847>849.
Area Forecast Discussion National Weather Service Grand Rapids MI 628 PM EST Fri Nov 6 2026
KEY MESSAGES
- Upper Low Moves East with Rain showers ending tonight
- Another Upper low and showers late week
DISCUSSION
Issued at 205 PM EST Fri Nov 6 2026
- Upper Low Moves East with Rain showers ending tonight
Lake effect rain showers will taper off overnight as the upper low moves east followed by height rises and general subsidence for the weekend with fair and cool weather through Sunday. A clipper will move north of Lower Michigan on Sunday but deep moisture and precip will remain north of the forecast area. Fair weather continues through the middle of the week in fast quasi-zonal flow.
- Another Upper low and showers late week
A northern stream shortwave trough tops the western CONUS upper ridging and digs out a longwave trough across the eastern CONUS by Thursday then merges with upper low over eastern Canada. The resulting height falls across the Great Lakes region will result in cooler temperatures with lake enhanced showers by the end of next week.
AVIATION /00Z TAFS THROUGH 00Z SUNDAY/
Issued at 628 PM EST Fri Nov 6 2026
We will remain under mostly cloudy skies on the back (west) side of a slow-moving low pressure system until Saturday afternoon.
Currently a mixture of MVFR and VFR ceilings should deteriorate to widespread MVFR tonight as a lobe of lower clouds and light precipitation pivots through from the north. Clouds are favored to scatter out from west to east during Saturday afternoon as high pressure noses in.
GRR WATCHES/WARNINGS/ADVISORIES
MI...None.
MARINE...Small Craft Advisory until 11 AM EST Saturday for LMZ844>846.
Small Craft Advisory until 4 AM EST Saturday for LMZ847>849.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| LDTM4 - 9087023 - Ludington, MI | 12 mi | 45 min | N 1.9G | |||||
| BSBM4 - Big Sable Point, MI | 20 mi | 53 min | N 16G | 43°F | 30.15 | |||
| 45210 | 38 mi | 37 min | 51°F | 6 ft | ||||
| MKGM4 - Muskegon, MI | 38 mi | 23 min | NNE 8G | 43°F | 30.13 | 41°F | ||
| 45161 | 41 mi | 68 min | 56°F | 6 ft |
Wind History for Ludington, MI
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Link to 5 hour of 5 minute data for KLDM
Terminal Aerodrome Forecast (TAF) for KLDM
Wind History Graph: LDM
(wind in knots)
GEOS Local Image of great lakes
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Grand Rapids/Muskegon, MI,
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