SXUS43 KMQT 160901 RECMQT MIZ001-162000- Recreational Forecast for Isle Royale National Park National Weather Service Marquette MI 500 AM EDT Fri Oct 16 2026 Isle Royale (SW areas)- Including Greenstone Ridge South, Little Todd Harbor, Minong Ridge, and Windigo- .TODAY...Windy. Mostly cloudy with a 40 percent chance of rain showers early, then partly cloudy by late morning. Highs around 44. North winds 25 to 35 mph decreasing to 15 to 25 mph by mid afternoon. Waves 5 to 8 feet building to 6 to 9 feet subsiding to 3 to 6 feet. .TONIGHT...Mostly clear. Lows 36 to 41. Northwest winds 10 to 15 mph becoming west 5 to 15 mph late. Waves subsiding to calm to 1 foot building to 3 to 5 feet. .SATURDAY...Windy, sunny. Highs around 52. Southwest winds 15 to 25 mph. Waves building to 6 to 9 feet. .SATURDAY NIGHT...Windy. Mostly clear. Lows around 45. Southwest winds 15 to 25 mph. Waves building to 8 to 11 feet. .SUNDAY...Windy. Mostly sunny. Highs around 55. Southwest winds 20 to 30 mph. Waves building to 9 to 12 feet subsiding to 6 to 9 feet. .SUNDAY NIGHT...Partly cloudy. Lows 42 to 47. .MONDAY THROUGH TUESDAY...Mostly clear. Highs 52 to 57. Lows 42 to 47. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows around 47. Highs around 55. .WEDNESDAY NIGHT...A chance of rain showers through midnight. Mostly cloudy. Lows around 49. Chance of showers 40 percent. .THURSDAY...Partly sunny. Highs around 56. && Isle Royale (NE areas)- Including Greenstone Ridge North, Malone Bay, Mount Saginaw, and Rock Harbor- .TODAY...Windy. Cloudy with a 20 percent chance of rain showers early, then partly cloudy by late morning. Highs around 45. North winds 15 to 25 mph. Waves 5 to 8 feet building to 6 to 9 feet subsiding to 3 to 6 feet. .TONIGHT...Partly cloudy. Lows 38 to 43. Northwest winds 10 to 20 mph becoming west 5 to 15 mph late. Waves subsiding to 1 to 2 feet, then building to 2 to 4 feet. .SATURDAY...Breezy, sunny. Highs around 51. Southwest winds 15 to 25 mph. Waves building to 4 to 7 feet. .SATURDAY NIGHT...Windy. Mostly clear. Lows around 46. Southwest winds 15 to 25 mph. Waves building to 7 to 10 feet. .SUNDAY...Windy. Mostly sunny. Highs around 55. Southwest winds 20 to 30 mph. Waves building to 8 to 11 feet, then subsiding to 5 to 8 feet. .SUNDAY NIGHT...Partly cloudy. Lows around 46. .MONDAY THROUGH TUESDAY...Mostly clear. Highs 51 to 56. Lows around 46. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows around 48. Highs around 54. .WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers. Lows around 49. .THURSDAY...Partly sunny. Highs 52 to 57. && Isle Royale (NW areas)- Including Amygdaloid Island, Lookout Louise, and Minong Mine- .TODAY...Windy. Cloudy with a 20 percent chance of rain showers early, then partly cloudy by late morning. Highs around 44. North winds 15 to 25 mph. Waves 5 to 8 feet building to 6 to 9 feet subsiding to 3 to 6 feet. .TONIGHT...Breezy. Partly cloudy. Lows 36 to 41. Northwest winds 15 to 20 mph becoming southwest 15 to 25 mph late. Waves subsiding to 1 to 2 feet, then building to 2 to 4 feet. .SATURDAY...Windy, sunny. Highs around 51. Southwest winds 15 to 25 mph. Waves building to 4 to 7 feet. .SATURDAY NIGHT...Windy. Mostly clear. Lows around 45. Southwest winds 15 to 25 mph. Waves building to 5 to 8 feet. .SUNDAY...Windy. Mostly sunny. Highs around 55. Southwest winds 20 to 30 mph. Waves building to 7 to 10 feet subsiding to 4 to 7 feet. .SUNDAY NIGHT...Partly cloudy. Lows 43 to 48. .MONDAY THROUGH TUESDAY...Mostly clear. Highs 51 to 56. Lows around 45. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows around 47. Highs around 55. .WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of rain showers. Lows around 49. .THURSDAY...Partly sunny. Highs around 55. && Isle Royale (SE areas)- Including Feldtman Ridge, Rainbow Cove, and Siskiwit Bay- .TODAY...Windy. Cloudy with a 50 percent chance of rain showers early, then partly cloudy by late morning. Highs around 45. North winds 25 to 30 mph decreasing to 15 to 25 mph by mid afternoon. Waves 2 to 4 feet subsiding to 1 to 2 feet. .TONIGHT...Breezy. Mostly clear. Lows 37 to 42. Northwest winds 10 to 15 mph becoming 5 to 15 mph by midnight, then becoming west late increasing to 15 to 25 mph late. Waves subsiding to calm to 1 foot building to 3 to 5 feet. .SATURDAY...Windy, sunny. Highs around 52. Southwest winds 15 to 25 mph. Waves building to 5 to 8 feet. .SATURDAY NIGHT...Breezy. Mostly clear. Lows around 45. Southwest winds 15 to 25 mph. Waves building to 8 to 11 feet. .SUNDAY...Windy. Mostly sunny. Highs around 55. Southwest winds 20 to 30 mph. Waves building to 9 to 12 feet subsiding to 6 to 9 feet. .SUNDAY NIGHT...Partly cloudy. Lows around 44. .MONDAY THROUGH TUESDAY...Mostly clear. Highs 51 to 56. Lows around 44. .TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows around 47. Highs around 54. .WEDNESDAY NIGHT...A chance of rain showers through midnight. Mostly cloudy. Lows around 48. Chance of showers 40 percent. .THURSDAY...Partly sunny. Highs 53 to 58. && $$