SXUS43 KMQT 250901 RECMQT MIZ001-252000- Recreational Forecast for Isle Royale National Park National Weather Service Marquette MI 501 AM EDT Sat Oct 25 2025 Isle Royale (SW areas)- Including Greenstone Ridge South, Little Todd Harbor, Minong Ridge, and Windigo- .TODAY...Warmer. Partly sunny through mid afternoon then clearing. Highs around 51. South winds 5 to 10 mph. Waves calm to 1 foot. .TONIGHT...Mostly clear. Lows 42 to 47. South winds 5 to 15 mph. Waves building to 1 to 2 feet. .SUNDAY...Sunny. Highs around 54. South winds 5 to 15 mph becoming southeast late. Waves subsiding to calm to 1 foot. .SUNDAY NIGHT...Mostly clear. Lows around 46. South winds 10 to 15 mph. Waves building to 2 to 3 feet. .MONDAY...Sunny. Highs 52 to 57. South winds 10 to 15 mph becoming southeast by mid afternoon. Waves subsiding to 1 to 2 feet. .MONDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows around 44. Highs 49 to 54. .THURSDAY NIGHT...Mostly cloudy. Lows around 41. .FRIDAY...Partly cloudy. Highs around 49. && && Isle Royale (NE areas)- Including Greenstone Ridge North, Malone Bay, Mount Saginaw, and Rock Harbor- .TODAY...Partly sunny through mid afternoon then clearing. Highs around 50. South winds 5 to 10 mph. Waves calm to 1 foot. .TONIGHT...Mostly clear. Lows around 45. South winds 5 to 15 mph becoming southwest late. Waves building to 1 to 2 feet. .SUNDAY...Sunny. Highs 50 to 55. South winds 10 to 15 mph becoming southeast 5 to 15 mph late. Waves 1 to 2 feet. .SUNDAY NIGHT...Mostly clear. Lows around 46. South winds 10 to 20 mph. Waves building to 2 to 3 feet. .MONDAY...Sunny. Highs 49 to 54. South winds 10 to 20 mph becoming southeast late. Waves building to 2 to 4 feet. .MONDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows around 44. Highs 47 to 52. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy. Lows around 41. Highs 46 to 51. && && Isle Royale (NW areas)- Including Amygdaloid Island, Lookout Louise, and Minong Mine- .TODAY...Warmer. Partly sunny through mid afternoon then clearing. Highs around 51. South winds 5 to 10 mph. Waves calm to 1 foot. .TONIGHT...Mostly clear. Lows around 45. South winds 5 to 15 mph. Waves building to 1 to 2 feet, then subsiding to calm to 1 foot. .SUNDAY...Sunny. Highs 52 to 57. South winds 5 to 15 mph becoming southeast 10 to 15 mph late. Waves building to 1 to 2 feet, then subsiding to calm to 1 foot. .SUNDAY NIGHT...Mostly clear. Lows around 47. South winds 10 to 20 mph. Waves building to 2 to 3 feet. .MONDAY...Sunny. Highs 51 to 56. South winds 10 to 15 mph becoming southeast 10 to 20 mph by mid afternoon. Waves subsiding to 1 to 2 feet building to 2 to 4 feet. .MONDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows around 44. Highs 49 to 54. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy. Lows around 41. Highs 47 to 52. && && Isle Royale (SE areas)- Including Feldtman Ridge, Rainbow Cove, and Siskiwit Bay- .TODAY...Partly sunny through mid afternoon then clearing. Highs around 50. South winds 5 to 10 mph. Waves calm to 1 foot. .TONIGHT...Mostly clear. Lows around 44. South winds 5 to 10 mph becoming southwest 5 to 15 mph late. Waves building to 1 to 2 feet. .SUNDAY...Sunny. Highs 51 to 56. South winds 5 to 15 mph becoming southeast late. Waves 1 to 2 feet. .SUNDAY NIGHT...Mostly clear. Lows around 46. South winds 5 to 15 mph. Waves building to 2 to 3 feet. .MONDAY...Sunny. Highs 50 to 55. South winds 5 to 15 mph becoming southeast 10 to 20 mph by mid afternoon. Waves subsiding to 1 to 2 feet, then building to 2 to 3 feet. .MONDAY NIGHT THROUGH THURSDAY...Partly cloudy. Lows around 44. Highs 48 to 53. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy. Lows around 41. Highs 46 to 51. && && $$