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SXUS43 KMQT 162101
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MIZ001-170800-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
501 PM EDT Thu Oct 16 2025

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

.TONIGHT...Cloudy. Rain showers through midnight, then rain showers
likely late. Lows around 51. Southeast winds 10 to 20 mph becoming
south 10 to 15 mph late. Waves 1 to 2 feet building to 2 to 3 feet.
.FRIDAY...Warmer. Mostly cloudy with a 40 percent chance of rain
showers. Highs 60 to 65. South winds 10 to 15 mph becoming southwest
late. Waves 2 to 3 feet.
.FRIDAY NIGHT...A 20 percent chance of rain showers through
midnight. Partly cloudy. Lows around 52. Southwest winds 10 to
20 mph. Waves building to 3 to 6 feet.
.SATURDAY...Partly cloudy. Highs around 56 at the shore and 59 to
64 inland. West winds 5 to 15 mph. Waves subsiding to 2 to 3 feet.
.SATURDAY NIGHT...A 20 percent chance of rain showers late. Mostly
cloudy. Lows around 47. Northwest winds 5 to 15 mph becoming 10 to
15 mph late. Waves subsiding to 1 to 2 feet building to 2 to 3 feet.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs 54 to 59. Lows
around 46.
.MONDAY...Partly sunny. Highs 53 to 58.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy with a 40 percent chance
of rain showers. Lows around 45. Highs 50 to 55.
.TUESDAY NIGHT...A chance of rain showers through midnight. Mostly
cloudy. Lows around 41. Chance of showers 30 percent.
.WEDNESDAY...Partly sunny. Highs 47 to 52.
.WEDNESDAY NIGHT AND THURSDAY...A 30 percent chance of rain showers.
Mostly cloudy. Lows around 41. Highs 48 to 53.

&&

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

.TONIGHT...Rain showers early in the evening, then a chance of rain
showers by midnight. Rain showers likely late. Lows around 51. South
winds 15 to 20 mph. Waves 2 to 3 feet building to 3 to 5 feet.
.FRIDAY...Partly sunny with a 50 percent chance of rain showers.
Highs 57 to 62. South winds 10 to 20 mph. Waves subsiding to 2 to
3 feet, then building to 2 to 4 feet.
.FRIDAY NIGHT...A 20 percent chance of rain showers through
midnight. Partly cloudy. Lows around 52. Southwest winds 10 to
20 mph. Waves building to 3 to 5 feet.
.SATURDAY...Mostly sunny through early afternoon then becoming
partly sunny. Highs 55 to 60. West winds 5 to 15 mph. Waves
subsiding to 1 to 2 feet.
.SATURDAY NIGHT...A 20 percent chance of rain showers late. Mostly
cloudy. Lows around 47. West winds 5 to 15 mph becoming northwest
10 to 20 mph by midnight. Waves building to 2 to 3 feet.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs 51 to 56. Lows
around 46.
.MONDAY...Partly sunny. Highs 51 to 56.
.MONDAY NIGHT...Mostly cloudy with a 30 percent chance of rain
showers. Lows around 44.
.TUESDAY...Mostly cloudy with a 40 percent chance of rain showers.
Highs 48 to 53.
.TUESDAY NIGHT THROUGH THURSDAY...Mostly cloudy with a 30 percent
chance of rain showers. Lows around 41. Highs 46 to 51.

&&

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

.TONIGHT...Rain showers early in the evening, then a chance of rain
showers by midnight. Rain showers likely late. Lows around 51. South
winds 15 to 20 mph. Waves 2 to 3 feet building to 2 to 4 feet.
.FRIDAY...Warmer. Partly sunny with a 50 percent chance of rain
showers. Highs 59 to 64. South winds 10 to 20 mph. Waves 2 to
3 feet.
.FRIDAY NIGHT...A 20 percent chance of rain showers through
midnight. Partly cloudy. Lows around 52. Southwest winds 10 to
20 mph. Waves building to 2 to 4 feet.
.SATURDAY...Partly cloudy. Highs around 57 at the shore and 59 to
64 inland. West winds 10 to 15 mph. Waves subsiding to 1 to 2 feet.
.SATURDAY NIGHT...A 20 percent chance of rain showers late. Mostly
cloudy. Lows around 47. West winds 10 to 15 mph becoming northwest
10 to 20 mph by midnight. Waves building to 2 to 3 feet.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs 54 to 59. Lows
around 46.
.MONDAY...Partly sunny. Highs around 52 at the shore and 54 to
59 inland.
.MONDAY NIGHT...Mostly cloudy with a 30 percent chance of rain
showers. Lows around 44.
.TUESDAY...Mostly cloudy with a 40 percent chance of rain showers.
Highs 50 to 55.
.TUESDAY NIGHT...A chance of rain showers through midnight. Mostly
cloudy. Lows around 40. Chance of showers 30 percent.
.WEDNESDAY...Partly sunny. Highs 47 to 52.
.WEDNESDAY NIGHT AND THURSDAY...A 30 percent chance of rain showers.
Mostly cloudy. Lows around 41. Highs around 48 at the shore and
50 to 55 inland.

&&

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

.TONIGHT...Cloudy. Rain showers through midnight, then rain showers
likely late. Lows around 51. Southeast winds 10 to 20 mph becoming
south 10 to 15 mph late. Waves 1 to 2 feet building to 2 to 3 feet.
.FRIDAY...Warmer. Mostly cloudy with a 40 percent chance of rain
showers. Highs 59 to 64. South winds 10 to 15 mph becoming southwest
late. Waves 2 to 3 feet.
.FRIDAY NIGHT...A 20 percent chance of rain showers through
midnight. Partly cloudy. Lows around 52. Southwest winds 10 to
20 mph. Waves building to 3 to 6 feet.
.SATURDAY...Mostly sunny through early afternoon then becoming
partly sunny. Highs 56 to 61. West winds 10 to 15 mph. Waves
subsiding to 2 to 3 feet.
.SATURDAY NIGHT...A 20 percent chance of rain showers late. Mostly
cloudy. Lows around 46. Northwest winds 5 to 15 mph becoming 10 to
15 mph late. Waves subsiding to calm to 1 foot.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs 52 to 57. Lows
around 46.
.MONDAY...Partly sunny. Highs around 51 at the shore and 53 to
58 inland.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy with a 40 percent chance
of rain showers. Lows around 44. Highs 48 to 53.
.TUESDAY NIGHT...A chance of rain showers through midnight. Mostly
cloudy. Lows around 40. Chance of showers 30 percent.
.WEDNESDAY...Partly sunny. Highs 46 to 51.
.WEDNESDAY NIGHT AND THURSDAY...A 30 percent chance of rain showers.
Mostly cloudy. Lows around 40. Highs 47 to 52.

&&


$$