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MIZ001-030800-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
501 PM EDT Sat Aug 2 2025

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

.TONIGHT...Partly cloudy. Haze through midnight. Lows around 60.
Southwest winds 5 to 15 mph. Waves 2 to 3 feet subsiding to 1 to
2 feet.
.SUNDAY...Partly cloudy. Haze by mid afternoon. Highs around 68 at
the shore and 72 to 77 inland. Southwest winds 5 to 15 mph. Waves
1 to 2 feet.
.SUNDAY NIGHT...Mostly cloudy. Haze through midnight. Lows around
64. Southwest winds up to 10 mph. Waves subsiding to calm to 1 foot.
.MONDAY...Warmer. Partly cloudy. Highs around 71 at the shore and
77 to 82 inland. Southeast winds up to 5 mph becoming east by late
morning. Waves calm to 1 foot.
.MONDAY NIGHT...Mostly cloudy. Lows around 64. East winds 5 to
10 mph. Waves calm to 1 foot.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. Highs around 71 at the
shore and 78 to 83 inland. Lows around 66.
.WEDNESDAY...Very warm. Partly cloudy. Highs around 74 at the shore
and 81 to 86 inland.
.WEDNESDAY NIGHT...Warm. A chance of showers through midnight, then
a chance of showers and thunderstorms late. Mostly cloudy. Lows
around 68. Chance of precipitation 40 percent.
.THURSDAY...Very warm. A chance of showers through early afternoon.
Partly cloudy. Highs around 74 at the shore and 81 to 86 inland.
Chance of showers 30 percent.
.THURSDAY NIGHT...Warm. A chance of showers through midnight. Mostly
cloudy. Lows around 68. Chance of showers 30 percent.
.FRIDAY...Very warm. Partly cloudy. Highs around 75 at the shore and
82 to 87 inland.
.FRIDAY NIGHT AND SATURDAY...A chance of showers. Mostly cloudy.
Lows around 67. Highs around 74 at the shore and 80 to 85 inland.
Chance of showers 30 percent.

&&

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

.TONIGHT...Partly cloudy. Haze. Lows around 59. West winds 10 to
20 mph. Waves 2 to 3 feet subsiding to 1 to 2 feet.
.SUNDAY...Partly cloudy. Highs around 65 at the shore and 69 to
74 inland. West winds 5 to 15 mph becoming southwest 10 to 15 mph by
mid afternoon. Waves subsiding to calm to 1 foot, then building to
1 to 2 feet.
.SUNDAY NIGHT...Mostly cloudy. Haze through midnight. Lows 59 to 64.
Southwest winds 5 to 10 mph becoming south late. Waves subsiding to
calm to 1 foot.
.MONDAY...Partly cloudy. Highs around 65 at the shore and 73 to
78 inland. Southeast winds 5 to 10 mph becoming east by late
morning. Waves calm to 1 foot.
.MONDAY NIGHT...Mostly cloudy. Lows 60 to 65. East winds 5 to
10 mph. Waves calm to 1 foot.
.TUESDAY...Partly cloudy. Highs around 65 at the shore and 73 to
78 inland.
.TUESDAY NIGHT...Mostly cloudy through midnight then becoming partly
cloudy. Lows 61 to 66.
.WEDNESDAY...Partly cloudy. Highs around 68 at the shore and 76 to
81 inland.
.WEDNESDAY NIGHT...A chance of showers and thunderstorms late.
Mostly cloudy. Lows 63 to 68. Chance of precipitation 40 percent.
.THURSDAY...A chance of showers through early afternoon. Partly
cloudy. Highs around 68 at the shore and 77 to 82 inland. Chance of
showers 30 percent.
.THURSDAY NIGHT...A chance of showers through midnight. Mostly
cloudy. Lows 63 to 68. Chance of showers 30 percent.
.FRIDAY...Partly cloudy. Highs around 69 at the shore and 77 to
82 inland.
.FRIDAY NIGHT AND SATURDAY...A chance of showers. Mostly cloudy.
Lows 62 to 67. Highs around 68 at the shore and 76 to 81 inland.
Chance of showers 30 percent.

&&

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

.TONIGHT...Partly cloudy. Haze. Lows around 60. West winds 10 to
20 mph. Waves 2 to 3 feet subsiding to 1 to 2 feet.
.SUNDAY...Partly cloudy. Haze by mid afternoon. Highs around 66 at
the shore and 72 to 77 inland. West winds 10 to 15 mph. Waves 1 to
2 feet.
.SUNDAY NIGHT...Mostly cloudy. Haze through midnight. Lows 61 to 66.
Southwest winds 5 to 15 mph becoming south 5 to 10 mph late. Waves
subsiding to calm to 1 foot.
.MONDAY...Partly cloudy. Highs around 67 at the shore and 76 to
81 inland. East winds 5 to 10 mph. Waves calm to 1 foot.
.MONDAY NIGHT...Mostly cloudy. Lows 61 to 66. East winds 5 to
10 mph. Waves calm to 1 foot.
.TUESDAY...Partly cloudy. Highs around 67 at the shore and 77 to
82 inland.
.TUESDAY NIGHT...Mostly cloudy through midnight then becoming partly
cloudy. Lows 62 to 67.
.WEDNESDAY...Warm. Mostly sunny. Highs around 70 at the shore and
80 to 85 inland.
.WEDNESDAY NIGHT...A chance of showers and thunderstorms late.
Mostly cloudy. Lows 64 to 69. Chance of precipitation 30 percent.
.THURSDAY...Warm. Partly cloudy. Highs around 71 at the shore and
81 to 86 inland.
.THURSDAY NIGHT...A chance of showers through midnight. Mostly
cloudy. Lows 64 to 69. Chance of showers 30 percent.
.FRIDAY...Warm. Partly cloudy. Highs around 71 at the shore and
81 to 86 inland.
.FRIDAY NIGHT...A chance of showers late. Mostly cloudy. Lows 63 to
68. Chance of showers 30 percent.
.SATURDAY...Warm. A chance of showers through early afternoon.
Partly cloudy. Highs around 70 at the shore and 80 to 85 inland.
Chance of showers 30 percent.

&&

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

.TONIGHT...Partly cloudy. Haze through midnight. Lows around 60.
West winds 5 to 15 mph. Waves 2 to 3 feet subsiding to 1 to 2 feet.
.SUNDAY...Partly cloudy. Haze by mid afternoon. Highs around 69 at
the shore and 71 to 76 inland. Southwest winds 5 to 15 mph. Waves
subsiding to calm to 1 foot.
.SUNDAY NIGHT...Mostly cloudy. Haze through midnight. Lows around
63. Southwest winds up to 10 mph. Waves calm to 1 foot.
.MONDAY...Warmer. Partly cloudy. Highs around 69 at the shore and
78 to 83 inland. South winds up to 5 mph becoming east by late
morning. Waves calm to 1 foot.
.MONDAY NIGHT...Mostly cloudy. Lows 62 to 67. East winds 5 to
10 mph. Waves calm to 1 foot.
.TUESDAY...Partly cloudy. Highs around 69 at the shore and 78 to
83 inland.
.TUESDAY NIGHT...Warm. Mostly cloudy through midnight then becoming
partly cloudy. Lows around 65.
.WEDNESDAY...Warm. Partly cloudy. Highs around 72 at the shore and
82 to 87 inland.
.WEDNESDAY NIGHT...Warm. A chance of showers through midnight, then
a chance of showers and thunderstorms late. Mostly cloudy. Lows
around 67. Chance of precipitation 40 percent.
.THURSDAY...Warm. A chance of showers through early afternoon.
Partly cloudy. Highs around 72 at the shore and 82 to 87 inland.
Chance of showers 30 percent.
.THURSDAY NIGHT...Warm. A chance of showers through midnight. Mostly
cloudy. Lows 65 to 70. Chance of showers 30 percent.
.FRIDAY...Warm. Partly cloudy. Highs around 73 at the shore and
82 to 87 inland.
.FRIDAY NIGHT AND SATURDAY...A chance of showers. Mostly cloudy.
Lows 64 to 69. Highs around 72 at the shore and 81 to 86 inland.
Chance of showers 30 percent.

&&


$$