Marine Weather and Tide Forecast for Grand Beach, MI
 | Sunrise 7:06 AM Sunset 4:19 PM Moonrise 4:07 AM Moonset 2:16 PM |
Marine Forecasts
NOTE: Zones were updated 3/20/2025. If your report is out of date, please click Edit
LMZ080 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- 251 Pm Cst Mon Dec 15 2025
sheboygan wi to pentwater mi south - .
Tonight - West winds 10 to 20 kt diminishing to 10 to 15 kt late this evening, then becoming southwest 5 to 10 kt after midnight increasing to 10 to 15 kt late. Waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft.
Tuesday - South winds 10 to 20 kt becoming southwest to 30 kt. Waves 3 to 5 ft building to 8 to 11 ft occasionally to 14 ft.
Tuesday night - Southwest gales to 35 kt becoming west to 30 kt. Waves 10 to 14 ft occasionally to 18 ft subsiding to 7 to 10 ft occasionally to 13 ft.
Wednesday - Northwest winds 15 to 25 kt becoming southwest 10 to 20 kt. Waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 6 ft occasionally to 8 ft.
Wednesday night - South gales to 35 kt increasing to gales to 40 kt. Chance of rain showers overnight. Waves 8 to 12 ft occasionally to 16 ft building to 12 to 16 ft occasionally to 21 ft.
Thursday - South gales to 35 kt becoming west gales to 40 kt. Rain showers in the morning, then rain showers likely in the afternoon. Waves 14 to 18 ft occasionally to 23 ft.
Thursday night - West gales to 40 kt becoming northwest. Freezing spray. Chance of snow and rain. Waves 15 to 20 ft occasionally to 26 ft.
Friday - Northwest winds to 30 kt becoming west 10 to 20 kt. Waves 12 to 16 ft occasionally to 21 ft subsiding to 6 to 9 ft occasionally to 12 ft.
Saturday - Southwest winds to 30 kt. Waves 12 to 16 ft occasionally to 21 ft.
sheboygan wi to pentwater mi south - .
LMZ005
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7 Day Forecast for Marine Location Near Grand Beach, MI
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Area Discussion for Northern Indiana, IN
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FXUS63 KIWX 152311 AFDIWX
Area Forecast Discussion National Weather Service Northern Indiana 611 PM EST Mon Dec 15 2025
KEY MESSAGES
- Moderating temperatures and breezy at times through Thursday.
- Periods of rain late Wednesday night into Thursday, possibly mixing or ending as snow showers Thursday night into Friday.
- Windy and briefly colder conditions on Friday.
DISCUSSION
Issued at 122 PM EST Mon Dec 15 2025
Warming temps remain the story through Thursday as pacific air floods the lower 48 under a more progressive, quasi-zonal, flow regime. Several shortwaves will track east within this flow, with a Tuesday night impulse through the northern Great Lakes sending a weakening front into the area early Wednesday. Height falls and ascent with the upper wave does clip the area, though most of this forcing will go to mid-upper level saturation with a dry forecast retained given a notable dry layer below roughly 700 mb.
The next pacific wave will be much more amplified encouraging cyclogenesis east through the northern Great Lakes Thursday into Thursday night. This will draw some gulf moisture northward with periods of rain anticipated along and in advance of a trailing cold front during the day on Thursday. A brief shot of gusty winds and chances for snow showers then swing through on the backside of the low into Thursday night and Friday.
AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/
Issued at 604 PM EST Mon Dec 15 2025
VFR conditions are expected through the remainder of this TAF forecast for both KSBN and KFWA. A disturbance moving over the northern Great Lakes/southern Canada will bring some mid to high level clouds across both terminals overnight through Tuesday afternoon along with some short lived gusty southwest winds, gusts up to 20 kts, after 16z Tue which are expected to begin to trend lower by the end of this TAF period.
IWX WATCHES/WARNINGS/ADVISORIES
IN...None.
OH...None.
MI...None.
MARINE...None.
Area Forecast Discussion National Weather Service Northern Indiana 611 PM EST Mon Dec 15 2025
KEY MESSAGES
- Moderating temperatures and breezy at times through Thursday.
- Periods of rain late Wednesday night into Thursday, possibly mixing or ending as snow showers Thursday night into Friday.
- Windy and briefly colder conditions on Friday.
DISCUSSION
Issued at 122 PM EST Mon Dec 15 2025
Warming temps remain the story through Thursday as pacific air floods the lower 48 under a more progressive, quasi-zonal, flow regime. Several shortwaves will track east within this flow, with a Tuesday night impulse through the northern Great Lakes sending a weakening front into the area early Wednesday. Height falls and ascent with the upper wave does clip the area, though most of this forcing will go to mid-upper level saturation with a dry forecast retained given a notable dry layer below roughly 700 mb.
The next pacific wave will be much more amplified encouraging cyclogenesis east through the northern Great Lakes Thursday into Thursday night. This will draw some gulf moisture northward with periods of rain anticipated along and in advance of a trailing cold front during the day on Thursday. A brief shot of gusty winds and chances for snow showers then swing through on the backside of the low into Thursday night and Friday.
AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/
Issued at 604 PM EST Mon Dec 15 2025
VFR conditions are expected through the remainder of this TAF forecast for both KSBN and KFWA. A disturbance moving over the northern Great Lakes/southern Canada will bring some mid to high level clouds across both terminals overnight through Tuesday afternoon along with some short lived gusty southwest winds, gusts up to 20 kts, after 16z Tue which are expected to begin to trend lower by the end of this TAF period.
IWX WATCHES/WARNINGS/ADVISORIES
IN...None.
OH...None.
MI...None.
MARINE...None.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| MCYI3 - Michigan City, IN | 21 mi | 57 min | SSW 9.9G | 20°F | 30.12 | 12°F | ||
| BHRI3 - Burns Harbor, IN | 28 mi | 67 min | SSW 7G | 21°F | 30.11 | |||
| CHII2 - Chicago, IL | 31 mi | 57 min | SSW 12G | 23°F | 12°F | |||
| CNII2 | 34 mi | 92 min | SSW 4.1G | 22°F | 11°F | |||
| OKSI2 | 34 mi | 107 min | NW 1.9G | 25°F | ||||
| CMTI2 - 9087044 - Calumet, IL | 35 mi | 59 min | SSW 6G | 30.08 | ||||
| 45214 | 45 mi | 82 min | 42°F | 4 ft | ||||
| SVNM4 - South Haven, MI | 46 mi | 67 min | SSW 15G | 26°F | ||||
| WHRI2 - Waukegan Harbor, IL | 49 mi | 107 min | SSW 4.1G | 20°F |
Wind History for Calumet Harbor, IL
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
Link to 1 hour of 5 minute data for KMGC
Terminal Aerodrome Forecast (TAF) for KMGC
Wind History Graph: MGC
(wind in knots)
GEOS Local Image of great lakes
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Northern Indiana, IN,
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