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MIZ001-022000-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
501 AM EDT Thu Oct 2 2025

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

.TODAY...A 20 percent chance of rain showers and thunderstorms late.
Sunny through mid afternoon then becoming partly cloudy. Highs
around 63 at the shore and 69 to 74 inland. Southwest winds 5 to
15 mph. Waves 1 to 2 feet subsiding to calm to 1 foot.
.TONIGHT...Mostly cloudy with a 40 percent chance of rain showers
and thunderstorms through midnight, then partly cloudy late. Lows
around 57. Southwest winds 5 to 10 mph becoming west late. Waves
calm to 1 foot.
.FRIDAY...Mostly sunny. Highs around 63 at the shore and 68 to
73 inland. Northwest winds up to 5 mph becoming east by mid
afternoon. Waves calm to 1 foot.
.FRIDAY NIGHT...Mostly cloudy. Lows around 57. East winds 5 to
10 mph becoming south 5 to 15 mph late. Waves building to 1 to
2 feet.
.SATURDAY...Partly cloudy. Highs around 67 at the shore and 71 to
76 inland. South winds 10 to 20 mph. Waves building to 2 to 4 feet.
.SATURDAY NIGHT AND SUNDAY...Breezy. Partly cloudy. Lows around 62.
Highs around 66 at the shore and 70 to 75 inland.
.SUNDAY NIGHT THROUGH TUESDAY...Breezy. Partly cloudy. Lows around
49. Highs around 55 at the shore and 58 to 63 inland.
.TUESDAY NIGHT...Partly cloudy. Lows around 42.
.WEDNESDAY...Sunny. Highs 52 to 57.

&&

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

.TODAY...A 20 percent chance of rain showers and thunderstorms late.
Sunny through mid afternoon then becoming partly cloudy. Highs
around 61 at the shore and 66 to 71 inland. Southwest winds 5 to
15 mph. Waves 2 to 3 feet building to 2 to 4 feet subsiding to 1 to
2 feet.
.TONIGHT...Mostly cloudy with a 50 percent chance of rain showers
and thunderstorms through midnight, then partly cloudy late. Lows
around 56. Southwest winds 5 to 10 mph becoming west late. Waves
subsiding to calm to 1 foot.
.FRIDAY...Partly cloudy. Highs around 59 at the shore and 64 to
69 inland. Northwest winds up to 5 mph becoming east by mid
afternoon. Waves calm to 1 foot.
.FRIDAY NIGHT...Mostly cloudy. Lows around 56. Southeast winds 5 to
15 mph. Waves building to 2 to 3 feet.
.SATURDAY...Partly sunny through early afternoon then becoming
mostly sunny. Highs around 67 at the shore and 70 to 75 inland.
South winds 10 to 15 mph. Waves 2 to 3 feet.
.SATURDAY NIGHT AND SUNDAY...Breezy. Partly cloudy. Lows around 61.
Highs around 65 at the shore and 67 to 72 inland.
.SUNDAY NIGHT AND MONDAY...Breezy, cooler. Partly cloudy. Lows
around 50. Highs 54 to 59.
.MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows around 47. Highs
53 to 58.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows around 42. Highs
50 to 55.

&&

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

.TODAY...A 20 percent chance of rain showers and thunderstorms late.
Sunny through mid afternoon then becoming partly cloudy. Highs
around 63 at the shore and 70 to 75 inland. Southwest winds 10 to
20 mph. Waves 2 to 3 feet subsiding to 1 to 2 feet.
.TONIGHT...Mostly cloudy with a 50 percent chance of rain showers
and thunderstorms through midnight, then partly cloudy late. Lows
around 57. Southwest winds 5 to 10 mph becoming west late. Waves
subsiding to calm to 1 foot.
.FRIDAY...Partly cloudy. Highs around 61 at the shore and 67 to
72 inland. Northwest winds 5 to 10 mph becoming east by mid
afternoon. Waves calm to 1 foot.
.FRIDAY NIGHT...Mostly cloudy. Lows around 56. Southeast winds 5 to
15 mph. Waves building to 1 to 2 feet.
.SATURDAY...Partly sunny through early afternoon then becoming
mostly sunny. Highs around 66 at the shore and 72 to 77 inland.
South winds 10 to 15 mph. Waves 1 to 2 feet.
.SATURDAY NIGHT AND SUNDAY...Breezy. Partly cloudy. Lows around 61.
Highs around 67 at the shore and 70 to 75 inland.
.SUNDAY NIGHT AND MONDAY...Breezy, cooler. Partly cloudy. Lows
around 50. Highs around 56 at the shore and 58 to 63 inland.
.MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows around 47. Highs
around 54 at the shore and 56 to 61 inland.
.TUESDAY NIGHT...Partly cloudy. Lows around 42.
.WEDNESDAY...Sunny. Highs around 51 at the shore and 54 to
59 inland.

&&

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

.TODAY...A 20 percent chance of rain showers and thunderstorms late.
Sunny through mid afternoon then becoming partly cloudy. Highs
around 63 at the shore and 68 to 73 inland. Southwest winds 5 to
15 mph. Waves 2 to 3 feet subsiding to calm to 1 foot.
.TONIGHT...Mostly cloudy with a chance of rain showers and a slight
chance of thunderstorms through midnight, then partly cloudy late.
Lows around 57. Southwest winds 5 to 10 mph becoming west late.
Chance of precipitation 40 percent. Waves calm to 1 foot.
.FRIDAY...Partly cloudy. Highs around 62 at the shore and 67 to
72 inland. Northwest winds up to 5 mph becoming east by mid
afternoon. Waves calm to 1 foot.
.FRIDAY NIGHT...Mostly cloudy. Lows around 56. East winds 5 to
15 mph becoming south late. Waves building to 2 to 3 feet.
.SATURDAY...Partly sunny through early afternoon then becoming
mostly sunny. Highs around 68 at the shore and 70 to 75 inland.
South winds 10 to 20 mph. Waves building to 2 to 4 feet.
.SATURDAY NIGHT AND SUNDAY...Breezy. Partly cloudy. Lows around 61.
Highs around 67 at the shore and 69 to 74 inland.
.SUNDAY NIGHT AND MONDAY...Breezy, cooler. Partly cloudy. Lows
around 50. Highs around 55 at the shore and 57 to 62 inland.
.MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows around 47. Highs
54 to 59.
.TUESDAY NIGHT...Partly cloudy. Lows around 42.
.WEDNESDAY...Sunny. Highs 51 to 56.

&&


$$