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Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
501 AM EDT Wed Jul 16 2025

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

.TODAY...Mostly cloudy with a 20 percent chance of rain showers.
Highs 58 to 63. Northeast winds 10 to 20 mph decreasing to 5 to
10 mph late. Waves 1 to 2 feet subsiding to calm to 1 foot.
.TONIGHT...A 20 percent chance of rain showers. Mostly cloudy
through midnight then becoming partly cloudy. Lows around 53. North
winds 5 to 10 mph. Waves calm to 1 foot.
.THURSDAY...Much warmer. Sunny. Highs around 64 at the shore and
72 to 77 inland. Northwest winds up to 10 mph becoming southwest by
mid afternoon. Waves building to 1 to 2 feet.
.THURSDAY NIGHT...Mostly clear. Lows 55 to 60. Southwest winds 5 to
15 mph. Waves subsiding to calm to 1 foot.
.FRIDAY...Partly sunny. Highs around 64 at the shore and 72 to
77 inland. Southwest winds 5 to 10 mph. Waves calm to 1 foot.
.FRIDAY NIGHT...A chance of rain showers. Mostly cloudy. Lows around
56. Chance of showers 50 percent.
.SATURDAY THROUGH MONDAY...Partly cloudy. Highs around 65 at the
shore and 73 to 78 inland. Lows around 56.
.MONDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows around 58.
.TUESDAY...A chance of rain showers through early afternoon. Partly
sunny. Highs around 66 at the shore and 74 to 79 inland. Chance of
showers 30 percent.

&&

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

.TODAY...Cool. Mostly cloudy with a 20 percent chance of rain
showers. Highs around 54 at the shore and 57 to 62 inland. Northeast
winds 10 to 20 mph decreasing to 5 to 10 mph by mid afternoon. Waves
1 to 2 feet subsiding to calm to 1 foot.
.TONIGHT...Mostly cloudy with a 20 percent chance of rain showers.
Lows around 51. North winds 5 to 10 mph. Waves calm to 1 foot.
.THURSDAY...Warmer, sunny. Highs around 58 at the shore and 67 to
72 inland. Northwest winds 5 to 10 mph becoming southwest 5 to
15 mph by mid afternoon. Waves calm to 1 foot.
.THURSDAY NIGHT...Partly cloudy. Lows 53 to 58. Southwest winds 5 to
15 mph. Waves calm to 1 foot.
.FRIDAY...Partly sunny. Highs around 58 at the shore and 69 to
74 inland. Southwest winds 5 to 10 mph. Waves calm to 1 foot.
.FRIDAY NIGHT...A chance of rain showers late. Mostly cloudy. Lows
51 to 56. Chance of showers 40 percent.
.SATURDAY THROUGH SUNDAY...Partly cloudy. Highs around 58 at the
shore and 68 to 73 inland. Lows 52 to 57 inland and around 49 at the
shore.
.SUNDAY NIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows 50 to 55.
.MONDAY...Partly cloudy. Highs around 57 at the shore and 67 to
72 inland.
.MONDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows 54 to 59 inland and around 51 at the shore.
.TUESDAY...A chance of rain showers through early afternoon. Partly
sunny. Highs around 59 at the shore and 68 to 73 inland. Chance of
showers 30 percent.

&&

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

.TODAY...A 20 percent chance of rain showers through mid afternoon.
Mostly cloudy. Highs 57 to 62. Northeast winds 10 to 20 mph
decreasing to 5 to 10 mph by mid afternoon. Waves 2 to 3 feet
subsiding to calm to 1 foot.
.TONIGHT...Mostly cloudy with a 20 percent chance of rain showers.
Lows around 51. North winds 5 to 10 mph. Waves calm to 1 foot.
.THURSDAY...Much warmer. Sunny. Highs around 61 at the shore and
71 to 76 inland. Northwest winds 5 to 10 mph becoming southwest 5 to
15 mph by mid afternoon. Waves calm to 1 foot.
.THURSDAY NIGHT...Partly cloudy. Lows 53 to 58. Southwest winds 5 to
15 mph. Waves building to 1 to 2 feet subsiding to calm to 1 foot.
.FRIDAY...Partly sunny. Highs around 61 at the shore and 72 to
77 inland. Southwest winds 5 to 15 mph. Waves calm to 1 foot.
.FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows 52 to 57.
.SATURDAY THROUGH MONDAY...Partly cloudy. Highs around 60 at the
shore and 71 to 76 inland. Lows 51 to 56.
.MONDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows 55 to 60 inland and around 51 at the shore.
.TUESDAY...A chance of rain showers through early afternoon. Partly
sunny. Highs around 62 at the shore and 72 to 77 inland. Chance of
showers 30 percent.

&&

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

.TODAY...Mostly cloudy with a 20 percent chance of rain showers.
Highs around 56 at the shore and 59 to 64 inland. Northeast winds
10 to 20 mph decreasing to 5 to 10 mph late. Waves calm to 1 foot
building to 1 to 2 feet subsiding to calm to 1 foot.
.TONIGHT...A 20 percent chance of rain showers. Mostly cloudy
through midnight then becoming partly cloudy. Lows around 52. North
winds up to 5 mph increasing to 5 to 10 mph by midnight. Waves calm
to 1 foot.
.THURSDAY...Much warmer. Sunny. Highs around 62 at the shore and
73 to 78 inland. Northwest winds 5 to 10 mph becoming southwest 5 to
15 mph by mid afternoon. Waves calm to 1 foot.
.THURSDAY NIGHT...Mostly clear. Lows around 56. Southwest winds 5 to
15 mph. Waves building to 1 to 2 feet subsiding to calm to 1 foot.
.FRIDAY...Partly sunny. Highs around 62 at the shore and 73 to
78 inland. Southwest winds 5 to 10 mph. Waves calm to 1 foot.
.FRIDAY NIGHT...A chance of rain showers. Mostly cloudy. Lows around
56. Chance of showers 50 percent.
.SATURDAY THROUGH MONDAY...Partly cloudy. Highs around 63 at the
shore and 73 to 78 inland. Lows 53 to 58.
.MONDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows around 58.
.TUESDAY...A chance of rain showers through early afternoon. Partly
sunny. Highs around 64 at the shore and 74 to 79 inland. Chance of
showers 30 percent.

&&


$$