801
SXUS43 KMQT 172103
RECMQT

MIZ001-180800-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
503 PM EDT Thu Sep 17 2026

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

.TONIGHT...Partly cloudy. Lows 48 to 53. Northwest winds 5 to 15 mph
becoming northeast 10 to 15 mph late. Waves calm to 1 foot building
to 1 to 2 feet.
.FRIDAY...Mostly cloudy. Highs around 58. East winds 5 to 15 mph.
Waves subsiding to calm to 1 foot.
.FRIDAY NIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows 50 to 55. Southeast winds 5 to 10 mph. Waves calm to
1 foot.
.SATURDAY...Partly sunny. Highs around 61. Southeast winds up to
10 mph. Waves calm to 1 foot.
.SATURDAY NIGHT...Mostly cloudy. Lows 51 to 56. East winds up to
10 mph becoming north by midnight, then increasing to northeast
10 to 20 mph late. Waves building to 2 to 3 feet.
.SUNDAY...Partly cloudy. Highs around 58.
.SUNDAY NIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows around 51.
.MONDAY...Partly cloudy. Highs 56 to 61.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows around 51. Highs
around 59.
.TUESDAY NIGHT THROUGH WEDNESDAY NIGHT...Partly cloudy. Lows around
54. Highs around 61.
.THURSDAY...Partly sunny. Highs around 63.

&&

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

.TONIGHT...Partly cloudy. Lows around 50. Northwest winds 5 to
15 mph becoming northeast 10 to 15 mph late. Waves calm to 1 foot
building to 1 to 2 feet.
.FRIDAY...Mostly cloudy. Highs around 55. East winds 5 to 15 mph
becoming 5 to 10 mph by mid afternoon. Waves 1 to 2 feet.
.FRIDAY NIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows around 51. Southeast winds 5 to 10 mph. Waves subsiding
to calm to 1 foot.
.SATURDAY...Partly cloudy. Highs 57 to 62. South winds up to 10 mph.
Waves calm to 1 foot.
.SATURDAY NIGHT...Mostly cloudy through midnight then becoming
partly cloudy. Lows around 52. Southeast winds up to 5 mph becoming
north by midnight, then increasing to northeast 10 to 20 mph late.
Waves building to 1 to 2 feet.
.SUNDAY...Partly cloudy. Highs around 55.
.SUNDAY NIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows around 50.
.MONDAY...Partly cloudy. Highs around 53 at the shore and 55 to
60 inland.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows around 51. Highs
55 to 60.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows around 53. Highs
56 to 61.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. Lows around 54. Highs
58 to 63.

&&

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

.TONIGHT...Partly cloudy. Lows 49 to 54. Northwest winds 5 to 15 mph
becoming northeast 10 to 15 mph late. Waves calm to 1 foot building
to 1 to 2 feet.
.FRIDAY...Cooler. Partly sunny. Highs around 57. East winds 10 to
15 mph becoming southeast 5 to 15 mph by mid afternoon. Waves
subsiding to calm to 1 foot.
.FRIDAY NIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows around 52. Southeast winds 5 to 10 mph. Waves calm to
1 foot.
.SATURDAY...Partly cloudy. Highs around 61. South winds up to
10 mph. Waves calm to 1 foot.
.SATURDAY NIGHT...Mostly cloudy through midnight then becoming
partly cloudy. Lows around 53. Southwest winds 5 to 10 mph becoming
north 5 to 15 mph by midnight, then increasing to 10 to 20 mph late.
Waves building to 2 to 3 feet.
.SUNDAY...Partly cloudy. Highs around 58.
.SUNDAY NIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows around 51.
.MONDAY...Partly sunny through early afternoon then becoming mostly
sunny. Highs 55 to 60.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows around 52. Highs
56 to 61.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows around 54. Highs
58 to 63.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. Lows around 55. Highs
60 to 65.

&&

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

.TONIGHT...Partly cloudy. Lows 48 to 53. Northwest winds 5 to 10 mph
becoming northeast 5 to 15 mph late. Waves calm to 1 foot building
to 1 to 2 feet.
.FRIDAY...Mostly cloudy. Highs 54 to 59. East winds 5 to 15 mph.
Waves 1 to 2 feet.
.FRIDAY NIGHT...Mostly cloudy. Lows around 51. Southeast winds 5 to
15 mph. Waves subsiding to calm to 1 foot.
.SATURDAY...Partly sunny. Highs 57 to 62. Southeast winds up to
10 mph. Waves calm to 1 foot.
.SATURDAY NIGHT...Mostly cloudy. Lows around 52. East winds up to
5 mph becoming north by midnight, then becoming northeast late.
Waves building to 1 to 2 feet.
.SUNDAY...Partly cloudy. Highs 54 to 59.
.SUNDAY NIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows around 50.
.MONDAY...Partly cloudy. Highs around 52 at the shore and 56 to
61 inland.
.MONDAY NIGHT AND TUESDAY...Mostly clear. Lows around 50. Highs
56 to 61.
.TUESDAY NIGHT AND WEDNESDAY...Partly cloudy. Lows around 52. Highs
57 to 62.
.WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy. Lows around 54. Highs
59 to 64.

&&


$$