SXUS43 KMQT 050902 RECMQT MIZ001-052000- Recreational Forecast for Isle Royale National Park National Weather Service Marquette MI 502 AM EDT Tue May 5 2026 Isle Royale (SW areas)- Including Greenstone Ridge South, Little Todd Harbor, Minong Ridge, and Windigo- .TODAY...Cool. A 20 percent chance of rain and snow showers by mid afternoon. Mostly cloudy. Highs around 42. West winds 10 to 20 mph. Waves 2 to 3 feet subsiding to 1 to 2 feet building to 2 to 3 feet. .TONIGHT...A 20 percent chance of rain and snow showers through midnight. Partly cloudy. Lows around 33. Northwest winds 5 to 15 mph. Waves subsiding to 1 to 2 feet. .WEDNESDAY...Cool. Partly sunny. Highs around 42. West winds 5 to 15 mph becoming southwest by mid afternoon. Waves subsiding to calm to 1 foot, then building to 2 to 3 feet. .WEDNESDAY NIGHT...Mostly cloudy. Lows around 34. West winds 5 to 15 mph. Waves subsiding to calm to 1 foot. .THURSDAY...Partly sunny. Highs 41 to 46. West winds 5 to 10 mph becoming southwest 5 to 15 mph by late morning. Waves building to 1 to 2 feet. .THURSDAY NIGHT THROUGH SATURDAY...Partly cloudy. Lows around 35. Highs 43 to 48. .SATURDAY NIGHT...Mostly cloudy through midnight then becoming partly cloudy. Lows around 36. .SUNDAY THROUGH MONDAY...Partly cloudy. Highs 44 to 49. Lows around 36. && Isle Royale (NE areas)- Including Greenstone Ridge North, Malone Bay, Mount Saginaw, and Rock Harbor- .TODAY...A 20 percent chance of snow showers by early afternoon. Mostly cloudy. Highs 39 to 44. West winds 10 to 20 mph. Waves 2 to 3 feet subsiding to 1 to 2 feet. .TONIGHT...Partly cloudy. Lows around 34. Northwest winds 5 to 15 mph. Waves 1 to 2 feet. .WEDNESDAY...Partly cloudy. Highs 38 to 43. Northwest winds 5 to 15 mph becoming southwest by mid afternoon. Waves subsiding to calm to 1 foot, then building to 1 to 2 feet. .WEDNESDAY NIGHT...Mostly cloudy. Lows around 34. West winds 5 to 15 mph decreasing to up to 10 mph by midnight. Waves subsiding to calm to 1 foot. .THURSDAY...Cool. Partly sunny. Highs 38 to 43. West winds 5 to 10 mph becoming southwest 5 to 15 mph by mid afternoon. Waves building to 1 to 2 feet. .THURSDAY NIGHT THROUGH SATURDAY...Cool. Partly cloudy. Lows around 35. Highs 40 to 45. .SATURDAY NIGHT...Mostly cloudy. Lows around 35. .SUNDAY THROUGH MONDAY...Cool. Partly cloudy. Highs 41 to 46. Lows around 36. && Isle Royale (NW areas)- Including Amygdaloid Island, Lookout Louise, and Minong Mine- .TODAY...A 20 percent chance of snow showers by early afternoon. Mostly cloudy. Highs 39 to 44. West winds 10 to 20 mph. Waves 2 to 3 feet. .TONIGHT...Partly cloudy. Lows around 33. Northwest winds 10 to 15 mph. Waves subsiding to 1 to 2 feet. .WEDNESDAY...Cool. Partly cloudy. Highs around 41. West winds 5 to 15 mph becoming southwest by mid afternoon. Waves subsiding to calm to 1 foot, then building to 1 to 2 feet. .WEDNESDAY NIGHT...Mostly cloudy. Lows around 34. West winds 5 to 15 mph becoming 5 to 10 mph by midnight. Waves subsiding to calm to 1 foot. .THURSDAY...Cool. Partly sunny. Highs around 41. West winds 5 to 10 mph becoming southwest 5 to 15 mph by mid afternoon. Waves building to 1 to 2 feet. .THURSDAY NIGHT THROUGH SATURDAY...Partly cloudy. Lows around 34. Highs 42 to 47. .SATURDAY NIGHT...Mostly cloudy through midnight then becoming partly cloudy. Lows around 35. .SUNDAY THROUGH MONDAY...Partly cloudy. Highs 43 to 48. Lows around 36. && Isle Royale (SE areas)- Including Feldtman Ridge, Rainbow Cove, and Siskiwit Bay- .TODAY...A 20 percent chance of rain and snow showers by mid afternoon. Mostly cloudy. Highs 40 to 45. West winds 10 to 20 mph. Waves 1 to 2 feet building to 2 to 3 feet. .TONIGHT...Partly cloudy. Lows around 34. Northwest winds 5 to 15 mph. Waves subsiding to calm to 1 foot. .WEDNESDAY...Partly cloudy. Highs 39 to 44. West winds 5 to 15 mph becoming southwest by mid afternoon. Waves building to 2 to 3 feet. .WEDNESDAY NIGHT...Mostly cloudy. Lows around 34. West winds 5 to 15 mph decreasing to up to 10 mph by midnight. Waves subsiding to calm to 1 foot. .THURSDAY...Partly cloudy. Highs 40 to 45. West winds up to 10 mph becoming southwest by late morning. Waves building to 1 to 2 feet. .THURSDAY NIGHT THROUGH SATURDAY...Partly cloudy. Lows around 36. Highs around 42 at the shore and 44 to 49 inland. .SATURDAY NIGHT...Mostly cloudy. Lows around 36. .SUNDAY THROUGH MONDAY...Partly cloudy. Highs 43 to 48. Lows around 36. && $$