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SXUS43 KMQT 100902
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MIZ001-102000-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
502 AM EDT Sun Aug 10 2025

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

.TODAY...Mostly sunny. Highs around 72 at the shore and 76 to
81 inland. Southwest winds 10 to 15 mph. Waves 2 to 3 feet subsiding
to 1 to 2 feet building to 2 to 3 feet.
.TONIGHT...Warm. Partly cloudy through midnight then becoming mostly
cloudy. Lows around 65. Southwest winds 5 to 15 mph becoming west
5 to 10 mph late. Waves subsiding to calm to 1 foot.
.MONDAY...Sunny. Highs around 72 at the shore and 78 to 83 inland.
West winds 5 to 10 mph becoming southwest 5 to 15 mph by late
morning. Waves building to 1 to 2 feet.
.MONDAY NIGHT...Warm. A 20 percent chance of showers and
thunderstorms late. Partly cloudy. Lows around 67. Southwest winds
10 to 15 mph. Waves building to 2 to 3 feet.
.TUESDAY...A 20 percent chance of showers through early afternoon.
Sunny. Highs around 73 at the shore and 79 to 84 inland. Southwest
winds 10 to 20 mph becoming west late. Waves building to 2 to
4 feet.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows around 62. Highs
around 70 at the shore and 75 to 80 inland.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows around 62. Highs
around 69 at the shore and 75 to 80 inland.
.THURSDAY NIGHT...Warm. A chance of showers late. Mostly cloudy.
Lows around 65. Chance of showers 40 percent.
.FRIDAY...Warm. Partly cloudy. Highs around 73 at the shore and
79 to 84 inland.
.FRIDAY NIGHT...Warm. A chance of showers. Mostly cloudy. Lows
around 66. Chance of showers 40 percent.
.SATURDAY...Mostly sunny. Highs around 73 at the shore and 78 to
83 inland.

&&

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

.TODAY...Mostly sunny. Patchy fog early. Highs around 69 at the
shore and 73 to 78 inland. Southwest winds 10 to 15 mph. Waves 1 to
2 feet building to 2 to 3 feet, then subsiding to 1 to 2 feet.
.TONIGHT...Mostly cloudy. Lows around 64. Southwest winds 5 to
15 mph becoming west 5 to 10 mph late. Waves subsiding to calm to
1 foot.
.MONDAY...Sunny. Highs around 69 at the shore and 75 to 80 inland.
West winds 5 to 10 mph becoming southwest 5 to 15 mph by mid
afternoon. Waves building to 1 to 2 feet.
.MONDAY NIGHT...Partly cloudy. Lows 63 to 68. Southwest winds 10 to
15 mph. Waves 1 to 2 feet.
.TUESDAY...A slight chance of showers through early afternoon, then
a slight chance of showers and thunderstorms by mid afternoon.
Mostly sunny. Highs around 69 at the shore and 76 to 81 inland.
Southwest winds 10 to 15 mph becoming west late. Chance of
precipitation 20 percent. Waves building to 2 to 3 feet subsiding to
1 to 2 feet.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows around 61. Highs
around 64 at the shore and 72 to 77 inland.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows around 60. Highs
around 67 at the shore and 71 to 76 inland.
.THURSDAY NIGHT...A chance of showers late. Mostly cloudy. Lows
61 to 66. Chance of showers 30 percent.
.FRIDAY...Warmer. Partly cloudy. Highs around 69 at the shore and
76 to 81 inland.
.FRIDAY NIGHT...A chance of showers late. Mostly cloudy. Lows 62 to
67. Chance of showers 30 percent.
.SATURDAY...Partly cloudy. Highs around 70 at the shore and 75 to
80 inland.

&&

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

.TODAY...Mostly sunny. Patchy fog early. Highs around 71 at the
shore and 76 to 81 inland. Southwest winds 10 to 15 mph. Waves calm
to 1 foot building to 1 to 2 feet.
.TONIGHT...Mostly cloudy. Lows 63 to 68. Southwest winds 5 to 15 mph
becoming west 5 to 10 mph late. Waves subsiding to calm to 1 foot.
.MONDAY...Sunny. Highs around 71 at the shore and 78 to 83 inland.
West winds 5 to 10 mph becoming southwest 10 to 15 mph by mid
afternoon. Waves building to 1 to 2 feet.
.MONDAY NIGHT...Partly cloudy. Lows 64 to 69. Southwest winds 10 to
15 mph. Waves subsiding to calm to 1 foot, then building to 1 to
2 feet.
.TUESDAY...Warm. A slight chance of showers through early afternoon,
then a slight chance of showers and thunderstorms by mid afternoon.
Sunny. Highs around 71 at the shore and 79 to 84 inland. Southwest
winds 10 to 20 mph becoming west 10 to 15 mph late. Chance of
precipitation 20 percent. Waves building to 2 to 3 feet.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows 60 to 65. Highs
around 67 at the shore and 74 to 79 inland.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows around 61. Highs
around 67 at the shore and 74 to 79 inland.
.THURSDAY NIGHT...A chance of showers late. Mostly cloudy. Lows
62 to 67. Chance of showers 30 percent.
.FRIDAY...Partly cloudy. Highs around 71 at the shore and 79 to
84 inland.
.FRIDAY NIGHT...A chance of showers late. Mostly cloudy. Lows 63 to
68. Chance of showers 30 percent.
.SATURDAY...Mostly sunny. Highs around 70 at the shore and 78 to
83 inland.

&&

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

.TODAY...Partly cloudy. Highs around 72 at the shore and 75 to
80 inland. Southwest winds 10 to 15 mph. Waves 2 to 3 feet subsiding
to 1 to 2 feet building to 2 to 3 feet.
.TONIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows around 64. Southwest winds 5 to 10 mph becoming west
late. Waves subsiding to calm to 1 foot.
.MONDAY...Sunny. Highs around 70 at the shore and 77 to 82 inland.
West winds 5 to 10 mph becoming southwest 5 to 15 mph by late
morning. Waves building to 1 to 2 feet.
.MONDAY NIGHT...Mostly clear through midnight, then mostly cloudy
with a 20 percent chance of showers and thunderstorms late. Lows
63 to 68. Southwest winds 5 to 15 mph. Waves building to 2 to
3 feet.
.TUESDAY...Partly cloudy with a 20 percent chance of showers through
early afternoon, then sunny by mid afternoon. Highs around 71 at the
shore and 79 to 84 inland. Southwest winds 10 to 20 mph. Waves
building to 2 to 4 feet.
.TUESDAY NIGHT AND WEDNESDAY...Mostly clear. Lows around 61. Highs
around 67 at the shore and 75 to 80 inland.
.WEDNESDAY NIGHT AND THURSDAY...Partly cloudy. Lows around 61. Highs
around 67 at the shore and 75 to 80 inland.
.THURSDAY NIGHT...A chance of showers late. Mostly cloudy. Lows
62 to 67. Chance of showers 40 percent.
.FRIDAY...Partly sunny. Highs around 71 at the shore and 79 to
84 inland.
.FRIDAY NIGHT...A chance of showers. Mostly cloudy. Lows 62 to 67.
Chance of showers 40 percent.
.SATURDAY...Partly cloudy. Highs around 70 at the shore and 77 to
82 inland.

&&


$$