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SXUS43 KMQT 050901
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MIZ001-052000-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
501 AM EDT Sun Oct 5 2025

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

.TODAY...Breezy. Unseasonably warm. Sunny through early afternoon,
then partly cloudy with a 20 percent chance of showers by mid
afternoon. Highs around 67 at the shore and 73 to 78 inland. South
winds 15 to 25 mph. Waves 2 to 4 feet building to 4 to 7 feet.
.TONIGHT...Windy. Mostly cloudy through midnight then clearing. Lows
around 50. Southwest winds 20 to 30 mph becoming west 15 to 25 mph
by midnight, then becoming northwest 10 to 20 mph late. Waves
building to 5 to 8 feet subsiding to 2 to 3 feet.
.MONDAY...Cooler. Sunny through early afternoon then becoming partly
cloudy. Highs 57 to 62. Northwest winds 10 to 15 mph becoming
southwest 5 to 15 mph by mid afternoon. Waves subsiding to 1 to
2 feet building to 2 to 3 feet.
.MONDAY NIGHT...Mostly clear. Lows around 47. West winds 10 to
20 mph. Waves 2 to 3 feet.
.TUESDAY...Sunny. Highs 55 to 60. West winds 10 to 20 mph becoming
northwest 5 to 15 mph by mid afternoon. Waves subsiding to 1 to
2 feet.
.TUESDAY NIGHT...Mostly clear. Lows around 44.
.WEDNESDAY...Sunny. Highs around 54 at the shore and 56 to
61 inland.
.WEDNESDAY NIGHT...Mostly clear. Lows around 49.
.THURSDAY...Sunny through early afternoon then becoming partly
cloudy. Highs around 58 at the shore and 62 to 67 inland.
.THURSDAY NIGHT...A chance of rain showers through midnight. Mostly
cloudy. Lows around 52. Chance of showers 30 percent.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs around 57 at the
shore and 61 to 66 inland. Lows around 50.

&&

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

.TODAY...Breezy. Sunny through mid afternoon, then partly sunny with
a 20 percent chance of rain showers late. Highs around 63 at the
shore and 71 to 76 inland. South winds 15 to 25 mph. Waves 3 to
5 feet building to 4 to 7 feet.
.TONIGHT...Breezy. Mostly cloudy through midnight then clearing.
Lows around 49. Southwest winds 15 to 25 mph becoming northwest
10 to 20 mph late. Waves subsiding to 2 to 4 feet.
.MONDAY...Cooler. Mostly sunny. Highs 55 to 60. Northwest winds 5 to
15 mph becoming southwest by mid afternoon. Waves subsiding to calm
to 1 foot building to 1 to 2 feet.
.MONDAY NIGHT...Partly cloudy. Lows around 47. West winds 10 to
20 mph. Waves building to 2 to 3 feet.
.TUESDAY...Sunny. Highs 52 to 57. West winds 10 to 20 mph becoming
northwest 5 to 15 mph by mid afternoon. Waves subsiding to 1 to
2 feet.
.TUESDAY NIGHT...Mostly clear. Lows around 45.
.WEDNESDAY...Sunny. Highs 53 to 58.
.WEDNESDAY NIGHT...Mostly clear. Lows around 49.
.THURSDAY...Sunny through early afternoon then becoming partly
cloudy. Highs 58 to 63.
.THURSDAY NIGHT...A chance of rain showers through midnight. Mostly
cloudy. Lows around 51. Chance of showers 30 percent.
.FRIDAY...Sunny. Highs 57 to 62.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows around 50. Highs
55 to 60.

&&

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

.TODAY...Breezy. Unseasonably warm. Sunny through mid afternoon,
then partly sunny with a 20 percent chance of showers late. Highs
around 67 at the shore and 74 to 79 inland. South winds 15 to
25 mph. Waves 2 to 3 feet building to 3 to 5 feet.
.TONIGHT...Breezy. Mostly cloudy through midnight then clearing.
Lows around 49. Southwest winds 20 to 25 mph becoming west 15 to
25 mph by midnight, then becoming northwest 10 to 20 mph late. Waves
building to 3 to 6 feet.
.MONDAY...Cooler. Sunny through early afternoon then becoming partly
cloudy. Highs around 56 at the shore and 58 to 63 inland. Northwest
winds 10 to 15 mph becoming southwest by mid afternoon. Waves
subsiding to calm to 1 foot building to 1 to 2 feet.
.MONDAY NIGHT...Partly cloudy. Lows around 47. West winds 10 to
20 mph. Waves building to 2 to 3 feet.
.TUESDAY...Sunny. Highs around 54 at the shore and 57 to 62 inland.
Northwest winds 10 to 20 mph becoming 10 to 15 mph late. Waves
subsiding to 1 to 2 feet.
.TUESDAY NIGHT...Mostly clear. Lows around 44.
.WEDNESDAY...Sunny. Highs around 54 at the shore and 57 to
62 inland.
.WEDNESDAY NIGHT...Mostly clear. Lows around 49.
.THURSDAY...Sunny through early afternoon then becoming partly
cloudy. Highs around 59 at the shore and 62 to 67 inland.
.THURSDAY NIGHT...A chance of rain showers through midnight. Mostly
cloudy. Lows around 51. Chance of showers 30 percent.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs around 58 at the
shore and 61 to 66 inland. Lows around 49.

&&

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

.TODAY...Breezy. Unseasonably warm. Sunny through early afternoon,
then partly cloudy with a 20 percent chance of showers by mid
afternoon. Highs around 65 at the shore and 72 to 77 inland. South
winds 15 to 25 mph. Waves 3 to 5 feet building to 4 to 7 feet.
.TONIGHT...Windy. Mostly cloudy through midnight then clearing. Lows
around 49. Southwest winds 20 to 30 mph becoming west 15 to 25 mph
by midnight, then becoming northwest 10 to 20 mph late. Waves
building to 5 to 8 feet subsiding to 2 to 3 feet.
.MONDAY...Cooler. Sunny through early afternoon then becoming partly
cloudy. Highs 55 to 60. Northwest winds 10 to 15 mph becoming
southwest 5 to 15 mph by mid afternoon. Waves subsiding to calm to
1 foot building to 2 to 3 feet.
.MONDAY NIGHT...Mostly clear. Lows around 47. West winds 10 to
20 mph. Waves 2 to 3 feet.
.TUESDAY...Sunny. Highs 54 to 59. West winds 10 to 20 mph becoming
northwest 5 to 15 mph by mid afternoon. Waves subsiding to calm to
1 foot.
.TUESDAY NIGHT...Mostly clear. Lows around 44.
.WEDNESDAY...Sunny. Highs around 54 at the shore and 56 to
61 inland.
.WEDNESDAY NIGHT...Mostly clear. Lows around 49.
.THURSDAY...Sunny through early afternoon then becoming partly
cloudy. Highs 59 to 64.
.THURSDAY NIGHT...A chance of rain showers through midnight. Mostly
cloudy. Lows around 51. Chance of showers 30 percent.
.FRIDAY...Sunny. Highs around 58 at the shore and 60 to 65 inland.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows around 49. Highs
around 56 at the shore and 58 to 63 inland.

&&


$$