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MIZ001-102000-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
501 AM EDT Fri Oct 10 2025

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

.TODAY...Breezy. A chance of rain showers through early afternoon,
then a slight chance of rain showers by early afternoon. Partly
sunny. Highs around 58. West winds 15 to 25 mph becoming northwest
by late morning. Waves 3 to 5 feet building to 3 to 6 feet.
.TONIGHT...Partly cloudy. Lows around 48. North winds 10 to 20 mph
becoming northeast 5 to 15 mph late. Waves subsiding to 1 to 2 feet.
.SATURDAY...Mostly sunny. Highs around 57. East winds 5 to 10 mph
becoming southeast by late morning. Waves subsiding to calm to
1 foot.
.SATURDAY NIGHT...Partly cloudy through midnight then becoming
mostly cloudy. Lows around 52. Southeast winds 10 to 20 mph becoming
south 15 to 20 mph late. Waves building to 2 to 4 feet.
.SUNDAY...Partly sunny. Highs around 60. South winds 15 to 20 mph
becoming southeast late. Waves 2 to 4 feet.
.SUNDAY NIGHT...Breezy. A chance of rain showers through midnight,
then rain showers likely late. Cloudy. Lows around 53. Chance of
showers 70 percent.
.COLUMBUS DAY...Breezy. Partly sunny with a chance of rain showers
through early afternoon, then sunny by mid afternoon. Highs around
59. Chance of showers 40 percent.
.MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows around 42. Highs
around 52.
.TUESDAY NIGHT...Mostly cloudy. Lows around 44.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs around 53.
Lows around 45.
.THURSDAY...Partly cloudy with a 40 percent chance of rain showers.
Highs around 55.

&&

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

.TODAY...Breezy. Mostly cloudy. Rain showers likely early. A chance
of rain showers by late morning, then a slight chance of rain
showers by early afternoon. Highs around 56. West winds 15 to 25 mph
becoming north late. Waves 3 to 6 feet.
.TONIGHT...Partly cloudy. Lows around 49. North winds 10 to 20 mph
becoming northeast 5 to 15 mph late. Waves subsiding to 1 to 2 feet.
.SATURDAY...Partly cloudy. Highs around 55. East winds 5 to 10 mph
becoming southeast by late morning. Waves subsiding to calm to
1 foot.
.SATURDAY NIGHT...Partly 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. Partly sunny. Highs around 59. South winds 15 to
25 mph becoming southeast late. Waves building to 5 to 8 feet.
.SUNDAY NIGHT...Breezy. A chance of rain showers through midnight,
then rain showers likely late. Cloudy. Lows around 53. Chance of
showers 60 percent.
.COLUMBUS DAY...Breezy. Partly sunny with a chance of rain showers
through early afternoon, then mostly sunny by mid afternoon. Highs
around 58. Chance of showers 50 percent.
.MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows around 43. Highs
around 51.
.TUESDAY NIGHT...Mostly cloudy. Lows around 45.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs around 52.
Lows around 44.
.THURSDAY...Partly cloudy with a 40 percent chance of rain showers.
Highs around 54.

&&

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

.TODAY...Breezy. A chance of rain showers through early afternoon,
then a slight chance of rain showers by early afternoon. Mostly
cloudy. Highs around 57. West winds 15 to 20 mph becoming north
15 to 25 mph late. Waves 2 to 4 feet building to 3 to 5 feet.
.TONIGHT...Partly cloudy. Lows around 49. North winds 10 to 20 mph
becoming northeast 5 to 15 mph late. Waves subsiding to 1 to 2 feet.
.SATURDAY...Partly cloudy. Highs 54 to 59. East winds 5 to 10 mph
becoming southeast by late morning. Waves subsiding to calm to
1 foot.
.SATURDAY NIGHT...Partly cloudy. Lows around 51. Southeast winds
10 to 20 mph becoming south 15 to 20 mph late. Waves building to
2 to 3 feet.
.SUNDAY...Breezy. Partly sunny. Highs around 59. South winds 15 to
25 mph becoming southeast late. Waves building to 4 to 7 feet.
.SUNDAY NIGHT...Breezy. A chance of rain showers through midnight,
then rain showers likely late. Cloudy. Lows around 53. Chance of
showers 70 percent.
.COLUMBUS DAY...Breezy. Partly sunny with a chance of rain showers
through early afternoon, then mostly sunny by mid afternoon. Highs
around 58. Chance of showers 50 percent.
.MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows around 43. Highs
around 52.
.TUESDAY NIGHT...Mostly cloudy. Lows around 45.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs around 52.
Lows around 45.
.THURSDAY...Partly cloudy with a 40 percent chance of rain showers.
Highs around 54.

&&

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

.TODAY...Breezy. A chance of rain showers through early afternoon,
then a slight chance of rain showers by early afternoon. Partly
sunny. Highs around 57. West winds 15 to 25 mph becoming northwest
by late morning. Waves 3 to 6 feet subsiding to 1 to 2 feet.
.TONIGHT...Partly cloudy. Lows around 48. North winds 5 to 15 mph
becoming northeast 5 to 10 mph late. Waves subsiding to calm to
1 foot.
.SATURDAY...Partly cloudy. Highs 54 to 59. East winds 5 to 10 mph
becoming southeast by late morning. Waves calm to 1 foot.
.SATURDAY NIGHT...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...Mostly cloudy. Highs around 60. South winds 15 to 20 mph
becoming southeast late. Waves building to 3 to 5 feet.
.SUNDAY NIGHT...Breezy. A chance of rain showers through midnight,
then rain showers likely late. Cloudy. Lows around 53. Chance of
showers 70 percent.
.COLUMBUS DAY...Breezy. Partly sunny with a chance of rain showers
through early afternoon, then mostly sunny by mid afternoon. Highs
around 59. Chance of showers 50 percent.
.MONDAY NIGHT AND TUESDAY...Partly cloudy. Lows around 43. Highs
around 52.
.TUESDAY NIGHT...Mostly cloudy. Lows around 45.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs around 52.
Lows around 45.
.THURSDAY...Partly cloudy with a 40 percent chance of rain showers.
Highs around 55.

&&


$$