SXUS43 KMQT 222101 RECMQT MIZ001-230800- Recreational Forecast for Isle Royale National Park National Weather Service Marquette MI 501 PM EDT Sat Aug 22 2026 Isle Royale (SW areas)- Including Greenstone Ridge South, Little Todd Harbor, Minong Ridge, and Windigo- .TONIGHT...Partly cloudy. Lows around 54. North winds 5 to 15 mph. Waves 1 to 2 feet building to 2 to 3 feet. .SUNDAY...Sunny. Highs around 63 at the shore and 66 to 71 inland. North winds 10 to 20 mph decreasing to 5 to 10 mph by early afternoon, then becoming west late. Waves subsiding to calm to 1 foot. .SUNDAY NIGHT...Mostly clear. Lows around 55. West winds 5 to 10 mph becoming northwest late. Waves calm to 1 foot. .MONDAY...Sunny. Highs around 65 at the shore and 69 to 74 inland. North winds 5 to 10 mph becoming southwest by mid afternoon. Waves calm to 1 foot. .MONDAY NIGHT...Mostly cloudy. Lows around 57. Southwest winds up to 10 mph. Waves calm to 1 foot. .TUESDAY...A 40 percent chance of rain showers by mid afternoon. Partly sunny. Highs around 66 at the shore and 71 to 76 inland. .TUESDAY NIGHT...Rain showers likely and a chance of thunderstorms. Lows around 59. Chance of precipitation 70 percent. .WEDNESDAY...Rain showers likely through early afternoon, then a chance of rain showers by mid afternoon. Mostly cloudy. Highs around 65 at the shore and 70 to 75 inland. Chance of showers 60 percent. .WEDNESDAY NIGHT...Mostly cloudy through midnight then becoming partly cloudy. Lows around 59. .THURSDAY...Sunny. Highs around 66 at the shore and 71 to 76 inland. .THURSDAY NIGHT THROUGH SATURDAY...Partly cloudy. Lows around 57. Highs around 64 at the shore and 69 to 74 inland. && Isle Royale (NE areas)- Including Greenstone Ridge North, Malone Bay, Mount Saginaw, and Rock Harbor- .TONIGHT...Mostly cloudy early in the evening then clearing. Lows around 53. North winds 5 to 15 mph. Waves 1 to 2 feet building to 2 to 3 feet, then subsiding to 1 to 2 feet. .SUNDAY...Mostly sunny. Highs 61 to 66. North winds 5 to 15 mph. Waves subsiding to calm to 1 foot. .SUNDAY NIGHT...Mostly clear. Lows around 55. Northwest winds 5 to 10 mph. Waves calm to 1 foot. .MONDAY...Sunny. Highs around 62 at the shore and 64 to 69 inland. Northwest winds up to 10 mph becoming southwest late. Waves calm to 1 foot. .MONDAY NIGHT...Mostly cloudy. Lows around 57. Southwest winds up to 10 mph becoming up to 5 mph late. Waves calm to 1 foot. .TUESDAY...Partly sunny. Highs around 63 at the shore and 67 to 72 inland. .TUESDAY NIGHT...Rain showers likely and a chance of thunderstorms. Lows around 58. Chance of precipitation 70 percent. .WEDNESDAY...Rain showers likely through early afternoon, then a chance of rain showers by mid afternoon. Mostly cloudy. Highs around 60 at the shore and 67 to 72 inland. Chance of showers 60 percent. .WEDNESDAY NIGHT...Mostly cloudy through midnight then becoming partly cloudy. Lows around 58. .THURSDAY...Sunny. Highs around 62 at the shore and 69 to 74 inland. .THURSDAY NIGHT THROUGH SATURDAY...Partly cloudy. Lows around 57. Highs around 59 at the shore and 66 to 71 inland. && Isle Royale (NW areas)- Including Amygdaloid Island, Lookout Louise, and Minong Mine- .TONIGHT...Mostly cloudy early in the evening then clearing. Lows around 55. North winds 10 to 20 mph. Waves 1 to 2 feet building to 2 to 3 feet. .SUNDAY...Mostly sunny. Highs around 63 at the shore and 66 to 71 inland. North winds 5 to 15 mph becoming northwest 5 to 10 mph late. Waves subsiding to calm to 1 foot. .SUNDAY NIGHT...Mostly clear. Lows around 56. West winds 5 to 10 mph becoming northwest late. Waves calm to 1 foot. .MONDAY...Sunny. Highs around 65 at the shore and 68 to 73 inland. Northwest winds up to 10 mph becoming southwest by mid afternoon. Waves calm to 1 foot. .MONDAY NIGHT...Mostly cloudy.Lows around 58. Southwest winds up to 10 mph. Waves calm to 1 foot. .TUESDAY...Partly sunny. Highs around 65 at the shore and 71 to 76 inland. .TUESDAY NIGHT...Rain showers likely and a chance of thunderstorms. Lows around 59. Chance of precipitation 70 percent. .WEDNESDAY...Rain showers likely through early afternoon, then a chance of rain showers by mid afternoon. Mostly cloudy. Highs around 64 at the shore and 69 to 74 inland. Chance of showers 60 percent. .WEDNESDAY NIGHT...Mostly cloudy through midnight then becoming partly cloudy. Lows around 59. .THURSDAY...Sunny. Highs around 66 at the shore and 71 to 76 inland. .THURSDAY NIGHT THROUGH SATURDAY...Partly cloudy. Lows around 58. Highs around 63 at the shore and 68 to 73 inland. && Isle Royale (SE areas)- Including Feldtman Ridge, Rainbow Cove, and Siskiwit Bay- .TONIGHT...Partly cloudy. Lows 51 to 56. North winds 5 to 15 mph. Waves calm to 1 foot. .SUNDAY...Sunny. Highs around 61 at the shore and 65 to 70 inland. North winds 5 to 15 mph becoming northwest 5 to 10 mph late. Waves calm to 1 foot. .SUNDAY NIGHT...Mostly clear. Lows around 54. West winds 5 to 10 mph becoming northwest late. Waves calm to 1 foot. .MONDAY...Sunny. Highs around 62 at the shore and 67 to 72 inland. North winds up to 5 mph becoming southwest by mid afternoon. Waves calm to 1 foot. .MONDAY NIGHT...Mostly cloudy. Lows around 56. Southwest winds up to 10 mph becoming up to 5 mph late. Waves calm to 1 foot. .TUESDAY...A 40 percent chance of rain showers by mid afternoon. Partly sunny. Highs around 64 at the shore and 71 to 76 inland. .TUESDAY NIGHT...Rain showers likely and a chance of thunderstorms. Lows 56 to 61. Chance of precipitation 70 percent. .WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs around 61 at the shore and 69 to 74 inland. Chance of showers 50 percent. .WEDNESDAY NIGHT...Mostly cloudy through midnight then becoming partly cloudy. Lows 55 to 60. .THURSDAY...Sunny. Highs around 63 at the shore and 70 to 75 inland. .THURSDAY NIGHT THROUGH SATURDAY...Partly cloudy. Lows 54 to 59. Highs around 61 at the shore and 68 to 73 inland. && $$