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SXUS43 KMQT 110901
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MIZ001-112000-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
501 AM EDT Sat Oct 11 2025

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

.TODAY...Sunny. Highs around 57. East winds up to 5 mph becoming
southeast by late morning. Waves calm to 1 foot.
.TONIGHT...Partly cloudy. Lows around 52. Southeast winds 10 to
20 mph becoming south late. Waves building to 3 to 5 feet.
.SUNDAY...Warmer. Mostly cloudy. Highs 61 to 66. Southeast winds
10 to 20 mph. Waves subsiding to 2 to 3 feet, then building to 2 to
4 feet.
.SUNDAY NIGHT...Breezy. A chance of rain showers through midnight,
then rain showers late. Cloudy. Lows around 53. South winds 15 to
25 mph decreasing to 10 to 20 mph late. Chance of showers
90 percent. Waves building to 3 to 6 feet.
.COLUMBUS DAY...A 30 percent chance of rain showers through early
afternoon. Sunny. Highs 59 to 64. Southwest winds 10 to 20 mph
becoming west by late morning. Waves subsiding to 2 to 3 feet.
.MONDAY NIGHT...Mostly clear. Lows around 42.
.TUESDAY AND TUESDAY NIGHT...Cooler. Partly cloudy. Highs 51 to 56.
Lows around 42.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 53 to 58. Lows
around 45.
.THURSDAY...Partly cloudy with a 40 percent chance of rain showers.
Highs around 56.
.THURSDAY NIGHT AND FRIDAY...Mostly cloudy with a 40 percent chance
of rain showers. Lows around 48. Highs 54 to 59.

&&

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

.TODAY...Sunny early then becoming mostly sunny. Highs around 55.
East winds 5 to 10 mph becoming southeast 5 to 15 mph by late
morning. Waves calm to 1 foot.
.TONIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows around 51. Southeast winds 10 to 20 mph becoming south
late. Waves building to 3 to 5 feet.
.SUNDAY...Mostly cloudy. Highs 57 to 62. Southeast winds 10 to
20 mph. Waves building to 5 to 8 feet.
.SUNDAY NIGHT...Breezy. A chance of rain showers through midnight,
then rain showers late. Cloudy. Lows around 52. South winds 15 to
25 mph. Chance of showers 90 percent. Waves 5 to 8 feet.
.COLUMBUS DAY...Partly cloudy with a 40 percent chance of rain
showers through early afternoon, then sunny by mid afternoon. Highs
56 to 61. Southwest winds 15 to 20 mph becoming west 10 to 15 mph
late. Waves subsiding to 2 to 4 feet.
.MONDAY NIGHT THROUGH TUESDAY NIGHT...Cooler. Partly cloudy. Lows
around 42. Highs 48 to 53.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 50 to 55. Lows
around 45.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a 40 percent chance of
rain showers. Highs 52 to 57. Lows around 47.

&&

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

.TODAY...Sunny. Highs around 57. East winds 5 to 10 mph becoming
southeast 5 to 15 mph by late morning. Waves calm to 1 foot.
.TONIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows around 51. Southeast winds 10 to 20 mph becoming south
15 to 20 mph late. Waves building to 2 to 4 feet.
.SUNDAY...Breezy. Mostly cloudy. Highs 59 to 64. Southeast winds
15 to 25 mph. Waves building to 4 to 7 feet.
.SUNDAY NIGHT...Breezy. A chance of rain showers through midnight,
then rain showers late. Cloudy. Lows around 53. South winds 15 to
25 mph. Chance of showers 90 percent. Waves 4 to 7 feet.
.COLUMBUS DAY...Partly cloudy with a 40 percent chance of rain
showers through early afternoon, then sunny by mid afternoon. Highs
around 58 at the shore and 61 to 66 inland. Southwest winds 15 to
20 mph becoming west 10 to 20 mph late. Waves subsiding to 2 to
3 feet.
.MONDAY NIGHT...Mostly clear. Lows around 42.
.TUESDAY AND TUESDAY NIGHT...Cooler. Partly cloudy. Highs around
50 at the shore and 53 to 58 inland. Lows around 42.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs around 52 at
the shore and 54 to 59 inland. Lows around 45.
.THURSDAY...Partly cloudy with a 40 percent chance of rain showers.
Highs 53 to 58.
.THURSDAY NIGHT AND FRIDAY...Mostly cloudy with a 40 percent chance
of rain showers. Lows around 47. Highs around 54 at the shore and
56 to 61 inland.

&&

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

.TODAY...Sunny. Highs around 56. East winds up to 5 mph becoming
southeast 5 to 15 mph by late morning. Waves calm to 1 foot.
.TONIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows around 51. Southeast winds 5 to 15 mph becoming south
10 to 20 mph late. Waves building to 3 to 5 feet.
.SUNDAY...Mostly cloudy. Highs 59 to 64. Southeast winds 10 to
20 mph. Waves 3 to 5 feet.
.SUNDAY NIGHT...A chance of rain showers through midnight, then rain
showers late. Cloudy. Lows around 52. South winds 10 to 20 mph.
Chance of showers 90 percent. Waves building to 4 to 7 feet.
.COLUMBUS DAY...Partly cloudy with a 30 percent chance of rain
showers through early afternoon, then sunny by mid afternoon. Highs
57 to 62. Southwest winds 10 to 20 mph becoming west by late
morning. Waves subsiding to 2 to 4 feet.
.MONDAY NIGHT...Mostly clear. Lows around 42.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. Highs 50 to 55. Lows
around 42.
.WEDNESDAY AND WEDNESDAY NIGHT...Mostly clear. Highs 51 to 56. Lows
around 45.
.THURSDAY THROUGH FRIDAY...Mostly cloudy with a 40 percent chance of
rain showers. Highs around 52 at the shore and 54 to 59 inland. Lows
around 47.

&&


$$