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SXUS43 KMQT 020901
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MIZ001-022000-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
501 AM EDT Tue Sep 2 2025

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

.TODAY...A 30 percent chance of rain showers and thunderstorms late.
A slight chance of waterspouts late. Partly cloudy. Highs around
63 at the shore and 69 to 74 inland. Southwest winds 5 to 15 mph.
Waves 1 to 2 feet.
.TONIGHT...Breezy. Rain showers and a chance of thunderstorms
through midnight, then rain showers likely and a slight chance of
thunderstorms late. A chance of waterspouts. Lows around 49.
Southwest winds 10 to 15 mph becoming northwest 10 to 20 mph late,
then becoming north 20 to 25 mph late. Chance of precipitation
90 percent. Waves building to 2 to 4 feet.
.WEDNESDAY...Breezy, cool. A chance of waterspouts through early
afternoon. Cloudy with a 40 percent chance of rain showers. Highs
around 52. North winds 20 to 25 mph. Waves building to 3 to 5 feet.
.WEDNESDAY NIGHT...Breezy. Cloudy with a 50 percent chance of rain
showers. A slight chance of waterspouts. Lows around 42. Northwest
winds 15 to 25 mph. Waves subsiding to 2 to 3 feet.
.THURSDAY...Cool. Mostly cloudy with a 40 percent chance of rain
showers. A chance of waterspouts. Highs around 52. Northwest winds
15 to 20 mph becoming west 10 to 15 mph late. Waves 2 to 3 feet.
.THURSDAY NIGHT...Cloudy with a 40 percent chance of rain showers.
Lows around 45.
.FRIDAY...Breezy. A chance of rain showers through early afternoon.
Mostly cloudy. Highs around 54. Chance of showers 30 percent.
.FRIDAY NIGHT AND SATURDAY...Breezy. Mostly cloudy. Lows around 46.
Highs around 56.
.SATURDAY NIGHT...Partly cloudy. Lows around 47.
.SUNDAY...Sunny. Highs around 59.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows around 52. Highs
around 62.

&&

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

.TODAY...A 20 percent chance of rain showers and thunderstorms late.
A slight chance of waterspouts late. Partly cloudy. Highs around
60 at the shore and 65 to 70 inland. Southwest winds 5 to 15 mph.
Waves calm to 1 foot building to 1 to 2 feet.
.TONIGHT...Windy. Rain showers and a chance of thunderstorms through
midnight, then rain showers likely and a slight chance of
thunderstorms late. A chance of waterspouts. Lows around 50. South
winds 10 to 15 mph becoming southwest 5 to 15 mph by midnight, then
becoming west 10 to 20 mph late increasing to north 20 to 30 mph
late. Chance of precipitation 90 percent. Waves building to 3 to
5 feet.
.WEDNESDAY...Windy, cool. A chance of waterspouts through early
afternoon. Cloudy with a 40 percent chance of rain showers. Highs
around 51. North winds 20 to 30 mph. Waves building to 3 to 6 feet.
.WEDNESDAY NIGHT...Breezy. Cloudy with a 50 percent chance of rain
showers. A slight chance of waterspouts through midnight. A chance
of waterspouts late. Lows around 43. Northwest winds 15 to 25 mph.
Waves subsiding to 2 to 3 feet.
.THURSDAY...Cool. Mostly cloudy with a 40 percent chance of rain
showers. A chance of waterspouts. Highs around 50. Northwest winds
15 to 20 mph becoming west 10 to 15 mph late. Waves subsiding to
1 to 2 feet.
.THURSDAY NIGHT...A chance of rain showers late. Cloudy. Lows around
46. Chance of showers 30 percent.
.FRIDAY...Breezy. A chance of rain showers through early afternoon.
Mostly cloudy. Highs around 53. Chance of showers 30 percent.
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly cloudy. Lows around
47. Highs around 55.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs around 58. Lows
around 53.
.MONDAY...Partly cloudy. Highs around 61.

&&

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

.TODAY...A 20 percent chance of rain showers and thunderstorms late.
A slight chance of waterspouts late. Partly cloudy. Highs around
63 at the shore and 70 to 75 inland. Southwest winds 5 to 15 mph.
Waves calm to 1 foot building to 1 to 2 feet, then subsiding to calm
to 1 foot.
.TONIGHT...Windy. Rain showers likely and a chance of thunderstorms
through midnight, then rain showers likely and a slight chance of
thunderstorms late. A chance of waterspouts. Lows around 49.
Southwest winds 10 to 15 mph becoming 5 to 15 mph by midnight, then
becoming west 10 to 20 mph late increasing to north 20 to 30 mph
late. Chance of precipitation 70 percent. Waves building to 1 to
2 feet subsiding to calm to 1 foot.
.WEDNESDAY...Windy, cool. A chance of waterspouts through early
afternoon. Cloudy with a 40 percent chance of rain showers. Highs
around 51. North winds 20 to 30 mph. Waves building to 3 to 6 feet.
.WEDNESDAY NIGHT...Breezy. Cloudy with a 50 percent chance of rain
showers. A slight chance of waterspouts through midnight. A chance
of waterspouts late. Lows around 43. Northwest winds 15 to 25 mph.
Waves 3 to 5 feet.
.THURSDAY...Cool. Mostly cloudy with a 40 percent chance of rain
showers. A chance of waterspouts. Highs around 51. Northwest winds
15 to 20 mph becoming west 10 to 15 mph late. Waves subsiding to
1 to 2 feet.
.THURSDAY NIGHT...A chance of rain showers late. Cloudy. Lows around
46. Chance of showers 30 percent.
.FRIDAY...Breezy. A chance of rain showers through early afternoon.
Mostly cloudy. Highs around 54. Chance of showers 30 percent.
.FRIDAY NIGHT AND SATURDAY...Breezy. Mostly cloudy. Lows around 47.
Highs around 55.
.SATURDAY NIGHT...Partly cloudy. Lows around 47.
.SUNDAY...Sunny. Highs around 59.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows around 53. Highs
around 62.

&&

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

.TODAY...A chance of rain showers and a slight chance of
thunderstorms late. A slight chance of waterspouts late. Partly
cloudy. Highs around 59 at the shore and 68 to 73 inland. Southwest
winds 5 to 15 mph. Waves 1 to 2 feet.
.TONIGHT...Breezy. Rain showers and a chance of thunderstorms
through midnight, then rain showers likely and a slight chance of
thunderstorms late. A slight chance of waterspouts. Lows around 49.
Southwest winds 10 to 15 mph becoming west by midnight, then
becoming northwest 15 to 20 mph late becoming north 20 to 25 mph
late. Chance of precipitation 90 percent. Waves building to 2 to
3 feet.
.WEDNESDAY...Breezy, cool. A slight chance of waterspouts through
early afternoon. Cloudy with a 40 percent chance of rain showers.
Highs around 51. North winds 20 to 25 mph. Waves subsiding to 1 to
2 feet.
.WEDNESDAY NIGHT...Breezy. Cloudy with a 50 percent chance of rain
showers. A slight chance of waterspouts through midnight. A chance
of waterspouts late. Lows around 42. Northwest winds 15 to 25 mph.
Waves 1 to 2 feet.
.THURSDAY...Cool. Cloudy with a 40 percent chance of rain showers. A
chance of waterspouts. Highs around 51. Northwest winds 15 to 20 mph
becoming west 10 to 15 mph late. Waves building to 2 to 3 feet.
.THURSDAY NIGHT...Cloudy with a 40 percent chance of rain showers.
Lows around 46.
.FRIDAY...Breezy. A chance of rain showers through early afternoon.
Mostly cloudy. Highs around 54. Chance of showers 30 percent.
.FRIDAY NIGHT...Mostly cloudy. Lows around 46.
.SATURDAY...A chance of rain showers by mid afternoon. Partly sunny.
Highs around 56. Chance of showers 40 percent.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows around 47. Highs
around 59.
.SUNDAY NIGHT...Partly cloudy. Lows around 52.
.MONDAY...Partly sunny. Highs around 62.

&&


$$