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MIZ001-142000-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
501 AM EDT Wed May 14 2025

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

.TODAY...Cooler. Partly sunny. Highs around 56 at the shore and
66 to 71 inland. Southeast winds 5 to 10 mph becoming east 5 to
15 mph by late morning. Waves calm to 1 foot building to 1 to
2 feet.
.TONIGHT...A slight chance of rain showers and thunderstorms through
midnight, then a slight chance of rain showers late. Mostly cloudy.
Lows 42 to 47. Northeast winds 5 to 15 mph. Chance of precipitation
20 percent. Waves subsiding to calm to 1 foot.
.THURSDAY...Cooler. A 20 percent chance of rain showers and
thunderstorms by mid afternoon. Mostly cloudy. Highs around 52 at
the shore and 55 to 60 inland. East winds 5 to 15 mph increasing to
15 to 20 mph late. Waves building to 2 to 3 feet.
.THURSDAY NIGHT...Rain showers and a chance of thunderstorms through
midnight, then rain showers likely and a slight chance of
thunderstorms late. Lows around 43. East winds 15 to 20 mph becoming
southeast 10 to 15 mph late. Chance of precipitation 90 percent.
Waves 2 to 3 feet.
.FRIDAY...A slight chance of rain showers through early afternoon,
then a chance of rain showers and a slight chance of thunderstorms
by mid afternoon. Mostly cloudy. Highs around 50 at the shore and
55 to 60 inland. South winds 5 to 15 mph. Chance of precipitation
50 percent. Waves 2 to 3 feet.
.FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of rain
showers. Lows around 40.
.SATURDAY...A chance of rain showers through early afternoon. Mostly
cloudy. Highs 48 to 53. Chance of showers 30 percent.
.SATURDAY NIGHT AND SUNDAY...Cool. Mostly cloudy. Lows around 37.
Highs 45 to 50.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows around 37. Highs
46 to 51.
.MONDAY NIGHT...Mostly cloudy. Lows around 38.
.TUESDAY...Mostly cloudy with a 50 percent chance of rain showers.
Highs 46 to 51.

&&

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

.TODAY...Partly sunny. Highs around 47 at the shore and 56 to
61 inland. Southeast winds 5 to 10 mph becoming east 10 to 15 mph
late. Waves 1 to 2 feet subsiding to calm to 1 foot building to 1 to
2 feet.
.TONIGHT...Cloudy with a 20 percent chance of rain showers. Lows
around 42. East winds 5 to 15 mph. Waves building to 2 to 3 feet.
.THURSDAY...Breezy, cloudy. Highs 47 to 52. East winds 10 to 20 mph.
Waves building to 3 to 5 feet.
.THURSDAY NIGHT...Breezy. Rain showers and a chance of thunderstorms
through midnight, then rain showers likely and a slight chance of
thunderstorms late. Lows around 42. East winds 15 to 25 mph becoming
southeast 10 to 20 mph late. Chance of precipitation 90 percent.
Waves building to 3 to 6 feet.
.FRIDAY...A slight chance of rain showers through early afternoon,
then a chance of rain showers and a slight chance of thunderstorms
by mid afternoon. Mostly cloudy. Highs around 47 at the shore and
51 to 56 inland. Southeast winds 10 to 15 mph. Chance of
precipitation 40 percent. Waves subsiding to 2 to 3 feet.
.FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows around 39.
.SATURDAY...A chance of rain showers through early afternoon. Mostly
cloudy. Highs 45 to 50. Chance of showers 30 percent.
.SATURDAY NIGHT AND SUNDAY...Breezy, cool. Mostly cloudy. Lows
around 36. Highs 42 to 47.
.SUNDAY NIGHT AND MONDAY...Cool. Partly cloudy. Lows around 37.
Highs 43 to 48.
.MONDAY NIGHT...Mostly cloudy. Lows around 38.
.TUESDAY...Cool. Mostly cloudy with a 50 percent chance of rain
showers. Highs 43 to 48.

&&

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

.TODAY...Cooler. Partly sunny. Highs around 50 at the shore and
60 to 65 inland. Southeast winds 5 to 10 mph becoming east 5 to
15 mph by late morning. Waves calm to 1 foot building to 1 to
2 feet.
.TONIGHT...A 20 percent chance of rain showers late. Cloudy. Lows
around 42. East winds 5 to 15 mph. Waves 1 to 2 feet.
.THURSDAY...Cloudy. Highs around 47 at the shore and 50 to
55 inland. East winds 10 to 20 mph. Waves building to 2 to 4 feet.
.THURSDAY NIGHT...Breezy. Rain showers and a chance of thunderstorms
through midnight, then rain showers likely and a slight chance of
thunderstorms late. Lows around 42. East winds 15 to 25 mph becoming
southeast 10 to 20 mph late. Chance of precipitation 90 percent.
Waves 2 to 4 feet.
.FRIDAY...A slight chance of rain showers through early afternoon,
then a chance of rain showers and a slight chance of thunderstorms
by mid afternoon. Mostly cloudy. Highs around 48 at the shore and
54 to 59 inland. Southeast winds 10 to 15 mph. Chance of
precipitation 40 percent. Waves subsiding to calm to 1 foot.
.FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows around 39.
.SATURDAY...A chance of rain showers through early afternoon. Mostly
cloudy. Highs 47 to 52. Chance of showers 30 percent.
.SATURDAY NIGHT AND SUNDAY...Breezy, cool. Mostly cloudy. Lows
around 36. Highs 44 to 49.
.SUNDAY NIGHT AND MONDAY...Cool. Partly cloudy. Lows around 37.
Highs 45 to 50.
.MONDAY NIGHT...Mostly cloudy. Lows around 38.
.TUESDAY...Breezy. Mostly cloudy with a 50 percent chance of rain
showers. Highs 45 to 50.

&&

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

.TODAY...Partly sunny. Highs around 53 at the shore and 65 to
70 inland. Southeast winds 5 to 10 mph becoming east 5 to 15 mph by
mid afternoon. Waves 1 to 2 feet subsiding to calm to 1 foot
building to 1 to 2 feet.
.TONIGHT...A slight chance of rain showers and thunderstorms through
midnight, then a slight chance of rain showers late. Mostly cloudy.
Lows around 43. Northeast winds 5 to 15 mph. Chance of precipitation
20 percent. Waves 1 to 2 feet.
.THURSDAY...A 20 percent chance of rain showers and thunderstorms by
mid afternoon. Mostly cloudy. Highs around 50 at the shore and 53 to
58 inland. East winds 5 to 15 mph increasing to 15 to 20 mph late.
Waves building to 2 to 4 feet.
.THURSDAY NIGHT...Breezy. Rain showers and a chance of thunderstorms
through midnight, then rain showers likely and a slight chance of
thunderstorms late. Lows around 43. East winds 15 to 25 mph becoming
southeast 10 to 20 mph late. Chance of precipitation 90 percent.
Waves building to 3 to 5 feet.
.FRIDAY...A slight chance of rain showers through early afternoon,
then a chance of rain showers and a slight chance of thunderstorms
by mid afternoon. Mostly cloudy. Highs around 50 at the shore and
53 to 58 inland. South winds 5 to 15 mph. Chance of precipitation
50 percent. Waves subsiding to 2 to 3 feet.
.FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of rain
showers. Lows around 40.
.SATURDAY...A chance of rain showers through early afternoon. Mostly
cloudy. Highs around 47 at the shore and 49 to 54 inland. Chance of
showers 30 percent.
.SATURDAY NIGHT AND SUNDAY...Cool. Mostly cloudy. Lows around 37.
Highs around 43 at the shore and 45 to 50 inland.
.SUNDAY NIGHT AND MONDAY...Cool. Partly cloudy. Lows around 38.
Highs 45 to 50.
.MONDAY NIGHT...Mostly cloudy. Lows around 38.
.TUESDAY...Mostly cloudy with a 50 percent chance of rain showers.
Highs 45 to 50.

&&


$$