Marine Weather and Tide Forecast for Stevensville, MI
 | Sunrise 6:41 AM Sunset 9:00 PM Moonrise 10:15 PM Moonset 10:56 AM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
LMZ043 NEw Buffalo Mi To St Joseph Mi- 1002 Am Edt Mon Aug 3 2026
Rest of today - Light and variable winds. Sunny. Waves 1 to 3 feet.
Tonight - North winds less than 10 knots. Mostly clear. Waves 1 foot or less.
Tuesday - South winds 10 knots or less becoming southwest. Sunny. Waves 1 foot or less.
Tuesday night - Southwest winds 10 knots or less becoming south. Mostly clear. Waves 1 foot or less.
the water temperature at st. Joseph is 51 degrees and at michigan city is 58 degrees.
the water temperature at st. Joseph is 51 degrees and at michigan city is 58 degrees.
LMZ005
No data
No data
7 Day Forecast for Marine Location Near Stevensville, MI
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Area Discussion for Northern Indiana, IN
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FXUS63 KIWX 031135 AFDIWX
Area Forecast Discussion National Weather Service Northern Indiana 735 AM EDT Mon Aug 3 2026
KEY MESSAGES
- Dry conditions today into Wednesday. Expect partly to mostly clear skies and light winds. Highs will range from 77 to 86 degrees, warmest Wednesday. Patchy fog this morning will diminish after sunrise.
- Dangerous swimming conditions are expected at Lake Michigan beaches along the La Porte County, IN and Southern Berrien County, MI shoreline early this morning. A beach hazards statement is in effect until 10 am EDT. For details, visit www.weather.gov/greatlakes/beachhazards
- Chances for showers and storms return Wednesday night and persist into the weekend. The best potential (30-60 percent)
will be Wednesday night into Thursday, then lower chances (20 to 40 percent) persist into the weekend. Highs will be in the 80s Thursday into the weekend, warmest Sunday.
DISCUSSION
Issued at 623 AM EDT Mon Aug 3 2026
An upper level ridge/sfc high pressure builds in today and lingers through Wed. Because of this, we have a nice break in active weather today into Wednesday, with partly to mostly clear skies, light winds, and highs in the upper 70s, low-mid 80s. Patchy fog is possible early this morning, but should improve shortly after sunrise.
A beach hazards statement remains in effect through 8 am EDT for Lake MI beaches along the Berrien Co, MI and La Porte Co, IN shoreline. Waves per latest buoy obs were around 2-4 feet with 5-7 second periods (45026 Cook Nuclear/45168 South Haven, MI; sadly 45170 at Michigan City, IN is not reporting this morning). Allowed the small craft to expire as planned at 5 am EDT this morning, and I suspect we will be able to drop the BH.S at 8 am EDT as planned, with waves dropping to around 1-2 feet by early afternoon. Have a high swim risk for La Porte/Southern Berrien County this morning, dropping to a moderate swim risk after the statement expires.
Despite wave heights dropping, strong currents are likely to be present through at least early afternoon (especially southern Berrien/La Porte). By the 4-5 pm update this aft/eve we should be low swim risk at most if not all of the beaches. With the high waves and winds, we had some upwelling at the beaches-so water temps dropped from around 66 degrees yesterday to about 57 degrees today.
Pretty chilly for August!
Next chance for showers and storms looks to be Wed night, continuing through the weekend. Our upper level ridge drifts eastward and a broad trough stemming from a closed low over Hudson Bay takes hold of the Great Lakes region. At the surface, a cold front moves in Wed PM and stalls out in northern Indiana/NW OH/Lower MI/IL. By Friday, return flow stemming from high pressure system off the eastern seaboard will bring warm air/moisture northward, which will re- orient the front (originally from SW to NE) to be more W-E (generally along I 80-90). This could serve as a focus for continued precipitation chances Friday into Saturday night. Models don't exactly agree on the broader pattern/precipitation location in this late week/weekend period, so kept chances limited to 15-30 percent later Friday afternoon into Saturday/Sunday.
AVIATION /12Z TAFS THROUGH 12Z TUESDAY/
Issued at 727 AM EDT Mon Aug 3 2026
Predominantly VFR conditions at the terminals through the period, with MVFR conditions this morning (KSBN) and potentially again late tonight (between 9-12z; both sites). Left tonight out of the TAF for now given lower confidence. Recent observations show KFWA went down briefly to 6SM before winds picked up slightly. Removed the tempo as they have since gone up to 8SM and with daytime heating suspect thats the end. Have a tempo until 13z for KSBN down to 4SM as they are still hovering around 5SM (got down for one ob to 3SM before bouncing back up).
IWX WATCHES/WARNINGS/ADVISORIES
IN...Beach Hazards Statement until 9 AM CDT this morning for INZ103.
OH...None.
MI...Beach Hazards Statement until 10 AM EDT this morning for MIZ277.
MARINE...None.
Area Forecast Discussion National Weather Service Northern Indiana 735 AM EDT Mon Aug 3 2026
KEY MESSAGES
- Dry conditions today into Wednesday. Expect partly to mostly clear skies and light winds. Highs will range from 77 to 86 degrees, warmest Wednesday. Patchy fog this morning will diminish after sunrise.
- Dangerous swimming conditions are expected at Lake Michigan beaches along the La Porte County, IN and Southern Berrien County, MI shoreline early this morning. A beach hazards statement is in effect until 10 am EDT. For details, visit www.weather.gov/greatlakes/beachhazards
- Chances for showers and storms return Wednesday night and persist into the weekend. The best potential (30-60 percent)
will be Wednesday night into Thursday, then lower chances (20 to 40 percent) persist into the weekend. Highs will be in the 80s Thursday into the weekend, warmest Sunday.
DISCUSSION
Issued at 623 AM EDT Mon Aug 3 2026
An upper level ridge/sfc high pressure builds in today and lingers through Wed. Because of this, we have a nice break in active weather today into Wednesday, with partly to mostly clear skies, light winds, and highs in the upper 70s, low-mid 80s. Patchy fog is possible early this morning, but should improve shortly after sunrise.
A beach hazards statement remains in effect through 8 am EDT for Lake MI beaches along the Berrien Co, MI and La Porte Co, IN shoreline. Waves per latest buoy obs were around 2-4 feet with 5-7 second periods (45026 Cook Nuclear/45168 South Haven, MI; sadly 45170 at Michigan City, IN is not reporting this morning). Allowed the small craft to expire as planned at 5 am EDT this morning, and I suspect we will be able to drop the BH.S at 8 am EDT as planned, with waves dropping to around 1-2 feet by early afternoon. Have a high swim risk for La Porte/Southern Berrien County this morning, dropping to a moderate swim risk after the statement expires.
Despite wave heights dropping, strong currents are likely to be present through at least early afternoon (especially southern Berrien/La Porte). By the 4-5 pm update this aft/eve we should be low swim risk at most if not all of the beaches. With the high waves and winds, we had some upwelling at the beaches-so water temps dropped from around 66 degrees yesterday to about 57 degrees today.
Pretty chilly for August!
Next chance for showers and storms looks to be Wed night, continuing through the weekend. Our upper level ridge drifts eastward and a broad trough stemming from a closed low over Hudson Bay takes hold of the Great Lakes region. At the surface, a cold front moves in Wed PM and stalls out in northern Indiana/NW OH/Lower MI/IL. By Friday, return flow stemming from high pressure system off the eastern seaboard will bring warm air/moisture northward, which will re- orient the front (originally from SW to NE) to be more W-E (generally along I 80-90). This could serve as a focus for continued precipitation chances Friday into Saturday night. Models don't exactly agree on the broader pattern/precipitation location in this late week/weekend period, so kept chances limited to 15-30 percent later Friday afternoon into Saturday/Sunday.
AVIATION /12Z TAFS THROUGH 12Z TUESDAY/
Issued at 727 AM EDT Mon Aug 3 2026
Predominantly VFR conditions at the terminals through the period, with MVFR conditions this morning (KSBN) and potentially again late tonight (between 9-12z; both sites). Left tonight out of the TAF for now given lower confidence. Recent observations show KFWA went down briefly to 6SM before winds picked up slightly. Removed the tempo as they have since gone up to 8SM and with daytime heating suspect thats the end. Have a tempo until 13z for KSBN down to 4SM as they are still hovering around 5SM (got down for one ob to 3SM before bouncing back up).
IWX WATCHES/WARNINGS/ADVISORIES
IN...Beach Hazards Statement until 9 AM CDT this morning for INZ103.
OH...None.
MI...Beach Hazards Statement until 10 AM EDT this morning for MIZ277.
MARINE...None.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| 45026 - St. Joseph, MI | 7 mi | 57 min | N 3.9G | 59°F | 60°F | 2 ft | 30.03 | 56°F |
| 45168 | 29 mi | 57 min | NNE 3.9G | 55°F | 53°F | 2 ft | 30.04 | 53°F |
| MCYI3 - Michigan City, IN | 30 mi | 37 min | NNE 2.9G | 67°F | 29.97 | 67°F | ||
| SVNM4 - South Haven, MI | 30 mi | 47 min | N 6G | 63°F | ||||
| 45170 | 31 mi | 57 min | ENE 3.9G | 68°F | 70°F | 3 ft | 64°F | |
| BHRI3 - Burns Harbor, IN | 43 mi | 47 min | 30.02 |
Wind History for Holland, MI
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Link to 5 hour of 5 minute data for KBEH
Terminal Aerodrome Forecast (TAF) for KBEH
Wind History Graph: BEH
(wind in knots)
GEOS Local Image of great lakes
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Northern Indiana, IN,
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