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MIZ001-292000-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
501 AM EDT Fri Aug 29 2025

Isle Royale (SW areas)-
Including Greenstone Ridge South, Little Todd Harbor, Minong Ridge,
and Windigo-

.TODAY...Sunny. Highs around 58 at the shore and 60 to 65 inland.
South winds 5 to 10 mph. Waves calm to 1 foot.
.TONIGHT...Mostly clear. Lows around 56. Southwest winds 5 to
10 mph. Waves calm to 1 foot.
.SATURDAY...Warmer, sunny. Highs around 68 at the shore and 70 to
75 inland. Southwest winds 5 to 15 mph. Waves building to 1 to
2 feet.
.SATURDAY NIGHT...Mostly clear. Lows around 59. Southwest winds 5 to
10 mph becoming west late. Waves subsiding to calm to 1 foot.
.SUNDAY...Sunny. Highs 69 to 74. West winds up to 5 mph becoming
southwest by late morning. Waves calm to 1 foot.
.SUNDAY NIGHT...Partly cloudy. Lows around 60.
.LABOR DAY...Sunny. Highs around 72.
.MONDAY NIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows around 61.
.TUESDAY...A chance of showers. Partly sunny. Highs around 68.
Chance of showers 50 percent.
.TUESDAY NIGHT...Rain showers likely through midnight, then a chance
of rain showers late. Cloudy. Lows around 52. Chance of showers
60 percent.
.WEDNESDAY...Breezy, cooler. Mostly cloudy with a 40 percent chance
of rain showers. Highs around 57.
.WEDNESDAY NIGHT...A chance of rain showers through midnight. Mostly
cloudy. Lows around 48. Chance of showers 30 percent.
.THURSDAY...Partly sunny. Highs around 57.

&&

Isle Royale (NE areas)-
Including Greenstone Ridge North, Malone Bay, Mount Saginaw,
and Rock Harbor-

.TODAY...Sunny. Highs 57 to 62. Southwest winds 5 to 15 mph. Waves
calm to 1 foot.
.TONIGHT...Mostly clear. Lows around 55. Southwest winds 5 to
10 mph. Waves calm to 1 foot.
.SATURDAY...Warmer, sunny. Highs 66 to 71. Southwest winds 5 to
10 mph. Waves calm to 1 foot.
.SATURDAY NIGHT...Partly cloudy. Lows around 59. Southwest winds
5 to 10 mph. Waves calm to 1 foot.
.SUNDAY...Sunny. Highs 66 to 71. Southwest winds 5 to 10 mph
becoming south by mid afternoon. Waves calm to 1 foot.
.SUNDAY NIGHT THROUGH MONDAY NIGHT...Partly cloudy. Lows around 60.
Highs around 69.
.TUESDAY...A chance of showers by mid afternoon. Partly sunny. Highs
around 67. Chance of showers 40 percent.
.TUESDAY NIGHT...Rain showers likely through midnight, then a chance
of rain showers late. Cloudy. Lows around 52. Chance of showers
60 percent.
.WEDNESDAY...Breezy, cooler. Mostly cloudy with a 40 percent chance
of rain showers. Highs around 56.
.WEDNESDAY NIGHT...A chance of rain showers through midnight. Mostly
cloudy. Lows around 49. Chance of showers 30 percent.
.THURSDAY...Partly sunny. Highs around 56.

&&

Isle Royale (NW areas)-
Including Amygdaloid Island, Lookout Louise, and Minong Mine-

.TODAY...Sunny. Highs 58 to 63. Southwest winds 5 to 15 mph. Waves
calm to 1 foot.
.TONIGHT...Mostly clear. Lows around 56. Southwest winds 5 to
10 mph. Waves calm to 1 foot.
.SATURDAY...Warmer, sunny. Highs around 66 at the shore and 69 to
74 inland. Southwest winds 5 to 15 mph. Waves calm to 1 foot.
.SATURDAY NIGHT...Partly cloudy. Lows around 59. Southwest winds
5 to 10 mph. Waves calm to 1 foot.
.SUNDAY...Sunny. Highs around 66 at the shore and 69 to 74 inland.
West winds 5 to 10 mph becoming south by mid afternoon. Waves calm
to 1 foot.
.SUNDAY NIGHT...Partly cloudy. Lows around 60.
.LABOR DAY...Sunny. Highs around 71.
.MONDAY NIGHT...Partly cloudy. Lows around 61.
.TUESDAY...A chance of showers by mid afternoon. Partly sunny. Highs
around 68. Chance of showers 40 percent.
.TUESDAY NIGHT...Rain showers likely through midnight, then a chance
of rain showers late. Cloudy. Lows around 52. Chance of showers
60 percent.
.WEDNESDAY...Breezy, cooler. Mostly cloudy with a 40 percent chance
of rain showers. Highs around 56.
.WEDNESDAY NIGHT...A chance of rain showers through midnight. Mostly
cloudy. Lows around 49. Chance of showers 30 percent.
.THURSDAY...Partly sunny. Highs around 57.

&&

Isle Royale (SE areas)-
Including Feldtman Ridge, Rainbow Cove, and Siskiwit Bay-

.TODAY...Sunny. Highs 58 to 63. South winds 5 to 10 mph. Waves calm
to 1 foot.
.TONIGHT...Mostly clear. Lows around 55. South winds 5 to 10 mph
becoming southwest by midnight. Waves calm to 1 foot.
.SATURDAY...Warmer, sunny. Highs around 68 at the shore and 70 to
75 inland. Southwest winds 5 to 15 mph. Waves building to 1 to
2 feet, then subsiding to calm to 1 foot.
.SATURDAY NIGHT...Partly cloudy. Lows around 59. Southwest winds
5 to 10 mph. Waves calm to 1 foot.
.SUNDAY...Sunny. Highs 68 to 73. Southwest winds up to 10 mph. Waves
calm to 1 foot.
.SUNDAY NIGHT...Partly cloudy. Lows around 60.
.LABOR DAY...Sunny. Highs around 71.
.MONDAY NIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows around 60.
.TUESDAY...A chance of showers. Partly sunny. Highs around 68.
Chance of showers 50 percent.
.TUESDAY NIGHT...Rain showers likely through midnight, then a chance
of rain showers late. Cloudy. Lows around 52. Chance of showers
60 percent.
.WEDNESDAY...Cooler. Mostly cloudy with a 40 percent chance of rain
showers. Highs around 57.
.WEDNESDAY NIGHT...A chance of rain showers through midnight. Mostly
cloudy. Lows around 48. Chance of showers 30 percent.
.THURSDAY...Partly sunny. Highs around 57.

&&


$$