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MIZ001-010800-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
501 PM EDT Fri Oct 31 2025

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

.TONIGHT...Mostly cloudy. A slight chance of rain showers. A slight
chance of snow showers by midnight. Lows around 36. North winds
10 to 20 mph. Waves 2 to 3 feet subsiding to 1 to 2 feet.
.SATURDAY...Partly sunny. Highs around 43. North winds 5 to 15 mph
becoming northwest 5 to 10 mph by early afternoon, then becoming
west late. Waves subsiding to calm to 1 foot.
.SATURDAY NIGHT...Mostly cloudy. Lows around 38. Southwest winds
5 to 15 mph. Waves building to 2 to 4 feet.
.SUNDAY...Windy. A 30 percent chance of rain showers by mid
afternoon. Mostly cloudy. Highs around 50. Southwest winds 15 to
25 mph. Waves building to 9 to 12 feet.
.SUNDAY NIGHT...Breezy. A chance of rain showers through midnight,
then a slight chance of rain showers late. Mostly cloudy. Lows
around 43. Southwest winds 15 to 25 mph becoming west late. Chance
of showers 40 percent. Waves subsiding to 3 to 6 feet.
.MONDAY AND MONDAY NIGHT...Breezy. Mostly clear. Highs around 50.
Lows around 41.
.TUESDAY...Partly sunny. Highs around 49.
.TUESDAY NIGHT AND WEDNESDAY...A 30 percent chance of rain showers.
Mostly cloudy. Lows around 39. Highs around 47.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 35.
.THURSDAY...Partly sunny. Highs around 46.
.THURSDAY NIGHT...A 30 percent chance of rain showers late. Mostly
cloudy. Lows around 39.
.FRIDAY...Mostly cloudy with a 50 percent chance of rain showers.
Highs around 47.

This is the last Recreational Forecast for 2025. The Recreational
Forecast will resume in early April 2026.


&&

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

.TONIGHT...A 20 percent chance of rain showers through midnight.
Cloudy. Lows around 36. North winds 10 to 20 mph. Waves 2 to 3 feet
subsiding to 1 to 2 feet.
.SATURDAY...Mostly cloudy. Highs around 41. North winds 5 to 15 mph
becoming northwest by early afternoon, then becoming up to 5 mph
late. Waves subsiding to calm to 1 foot.
.SATURDAY NIGHT...Mostly cloudy. Lows around 38. West winds up to
10 mph increasing to southwest 10 to 20 mph late. Waves building to
1 to 2 feet.
.SUNDAY...Windy. A 40 percent chance of rain showers by mid
afternoon. Mostly cloudy. Highs around 49. Southwest winds 15 to
25 mph. Waves building to 9 to 12 feet.
.SUNDAY NIGHT...Breezy. A chance of rain showers through midnight,
then a slight chance of rain showers late. Mostly cloudy. Lows
around 43. Southwest winds 15 to 25 mph becoming west late. Chance
of showers 40 percent. Waves subsiding to 3 to 6 feet.
.MONDAY...Breezy. Partly cloudy through early afternoon then
clearing. Highs 47 to 52.
.MONDAY NIGHT...Mostly clear. Lows around 42.
.TUESDAY...Partly sunny. Highs 46 to 51.
.TUESDAY NIGHT AND WEDNESDAY...A 30 percent chance of rain showers.
Mostly cloudy. Lows around 40. Highs 43 to 48.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 35.
.THURSDAY...Partly sunny. Highs 42 to 47.
.THURSDAY NIGHT...A 30 percent chance of rain showers late. Cloudy.
Lows around 39.
.FRIDAY...Mostly cloudy with a 50 percent chance of rain showers.
Highs 43 to 48.

This is the last Recreational Forecast for 2025. The Recreational
Forecast will resume in early April 2026.


&&

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

.TONIGHT...A 20 percent chance of rain showers through midnight.
Cloudy. Lows around 36. North winds 10 to 20 mph. Waves 2 to 3 feet
subsiding to 1 to 2 feet.
.SATURDAY...Mostly cloudy. Highs around 43. North winds 5 to 15 mph
becoming west 5 to 10 mph late. Waves subsiding to calm to 1 foot.
.SATURDAY NIGHT...Mostly cloudy. Lows around 38. Southwest winds
5 to 15 mph. Waves building to 2 to 3 feet.
.SUNDAY...Windy. A 40 percent chance of rain showers by mid
afternoon. Mostly cloudy. Highs around 50. Southwest winds 15 to
25 mph. Waves building to 5 to 8 feet.
.SUNDAY NIGHT...Windy. A chance of rain showers through midnight,
then a slight chance of rain showers late. Mostly cloudy. Lows
around 43. Southwest winds 15 to 25 mph becoming west late. Chance
of showers 40 percent. Waves 5 to 8 feet.
.MONDAY...Breezy. Partly cloudy through early afternoon then
clearing. Highs 48 to 53.
.MONDAY NIGHT...Mostly clear. Lows around 42.
.TUESDAY...Partly sunny. Highs 47 to 52.
.TUESDAY NIGHT AND WEDNESDAY...A 30 percent chance of rain showers.
Mostly cloudy. Lows around 40. Highs around 46.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 35.
.THURSDAY...Partly sunny. Highs 44 to 49.
.THURSDAY NIGHT...A 30 percent chance of rain showers late. Mostly
cloudy. Lows around 38.
.FRIDAY...Mostly cloudy with a 50 percent chance of rain showers.
Highs 44 to 49.

This is the last Recreational Forecast for 2025. The Recreational
Forecast will resume in early April 2026.


&&

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

.TONIGHT...Mostly cloudy. A slight chance of rain showers. A slight
chance of snow showers by midnight. Lows around 36. North winds 5 to
15 mph. Waves 1 to 2 feet subsiding to calm to 1 foot.
.SATURDAY...Partly sunny. Highs 40 to 45. North winds 5 to 10 mph
becoming west late. Waves calm to 1 foot.
.SATURDAY NIGHT...Mostly cloudy. Lows around 37. West winds 5 to
15 mph becoming southwest 10 to 20 mph late. Waves building to 2 to
4 feet.
.SUNDAY...Windy, warmer. A 30 percent chance of rain showers by mid
afternoon. Mostly cloudy. Highs 48 to 53. Southwest winds 10 to
20 mph increasing to 20 to 30 mph by mid afternoon. Waves building
to 9 to 12 feet.
.SUNDAY NIGHT...Breezy. A chance of rain showers through midnight,
then a slight chance of rain showers late. Mostly cloudy. Lows
around 42. Southwest winds 15 to 25 mph becoming west late. Chance
of showers 40 percent. Waves subsiding to 3 to 6 feet.
.MONDAY AND MONDAY NIGHT...Breezy. Mostly clear. Highs 47 to 52.
Lows around 41.
.TUESDAY...Partly sunny. Highs 46 to 51.
.TUESDAY NIGHT AND WEDNESDAY...A 30 percent chance of rain showers.
Mostly cloudy. Lows around 39. Highs 44 to 49.
.WEDNESDAY NIGHT...Partly cloudy through midnight then becoming
mostly cloudy. Lows around 35.
.THURSDAY AND THURSDAY NIGHT...Mostly cloudy. Highs 43 to 48. Lows
around 39.
.FRIDAY...Mostly cloudy with a 50 percent chance of rain showers.
Highs 44 to 49.

This is the last Recreational Forecast for 2025. The Recreational
Forecast will resume in early April 2026.


&&


$$