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MIZ001-252000-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
501 AM EDT Sat Jul 25 2026

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

.TODAY...Partly sunny with a 30 percent chance of rain showers
early, then mostly sunny by late morning. Highs around 63 at the
shore and 75 to 80 inland. Southwest winds 5 to 15 mph. Waves 3 to
5 feet subsiding to 1 to 2 feet.
.TONIGHT...Mostly clear through midnight then becoming mostly
cloudy. Lows 58 to 63 inland and around 52 at the shore. Southwest
winds up to 10 mph. Waves subsiding to calm to 1 foot.
.SUNDAY...A 20 percent chance of rain showers through early
afternoon. Partly sunny. Highs around 64 at the shore and 76 to
81 inland. East winds up to 5 mph becoming up to 10 mph by late
morning, then becoming northeast late. Waves calm to 1 foot.
.SUNDAY NIGHT...A slight chance of rain showers through midnight,
then a chance of rain showers and a slight chance of thunderstorms
late. Mostly cloudy. Lows 59 to 64 inland and around 52 at the
shore. Northeast winds up to 10 mph. Chance of precipitation
50 percent. Waves calm to 1 foot.
.MONDAY...A chance of rain showers and thunderstorms through early
afternoon, then a slight chance of rain showers and thunderstorms by
mid afternoon. Partly sunny. Highs around 63 at the shore and 74 to
79 inland. Northeast winds up to 10 mph. Chance of precipitation
50 percent. Waves calm to 1 foot.
.MONDAY NIGHT...Mostly cloudy. Lows 58 to 63 inland and around 54 at
the shore.
.TUESDAY THROUGH WEDNESDAY NIGHT...Partly cloudy. Highs around 63 at
the shore and 73 to 78 inland. Lows 58 to 63 inland and around 55 at
the shore.
.THURSDAY...Partly sunny. Highs around 67 at the shore and 72 to
77 inland.
.THURSDAY NIGHT...Partly cloudy through midnight then becoming
mostly cloudy. Lows 60 to 65 inland and around 57 at the shore.
.FRIDAY...Partly sunny. Highs around 70 at the shore and 75 to
80 inland.

&&

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

.TODAY...Partly sunny with a 30 percent chance of rain showers
early, then partly cloudy by late morning. Highs around 58 at the
shore and 72 to 77 inland. Southwest winds 5 to 15 mph. Waves 3 to
5 feet subsiding to 1 to 2 feet.
.TONIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows 54 to 59 inland and around 47 at the shore. Southwest
winds up to 10 mph becoming south late. Waves subsiding to calm to
1 foot.
.SUNDAY...A 20 percent chance of rain showers through early
afternoon. Mostly cloudy. Highs around 55 at the shore and 70 to
75 inland. East winds up to 10 mph becoming northeast late. Waves
calm to 1 foot.
.SUNDAY NIGHT...A slight chance of rain showers through midnight,
then a chance of rain showers and a slight chance of thunderstorms
late. Mostly cloudy. Lows 54 to 59 inland and around 47 at the
shore. Northeast winds up to 10 mph. Chance of precipitation
50 percent. Waves calm to 1 foot.
.MONDAY...A chance of rain showers and a slight chance of
thunderstorms through early afternoon, then a slight chance of rain
showers and thunderstorms by mid afternoon. Mostly cloudy. Highs
around 56 at the shore and 69 to 74 inland. Northeast winds up to
10 mph. Chance of precipitation 50 percent. Waves calm to 1 foot.
.MONDAY NIGHT...Mostly cloudy. Lows 53 to 58 inland and around 48 at
the shore.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. Highs around 58 at the
shore and 70 to 75 inland. Lows 54 to 59 inland and around 49 at the
shore.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs around 56 at
the shore and 66 to 71 inland. Lows 54 to 59 inland and around 49 at
the shore.
.THURSDAY AND THURSDAY NIGHT...Mostly cloudy. Highs around 57 at the
shore and 67 to 72 inland. Lows 56 to 61 inland and around 51 at the
shore.
.FRIDAY...Partly sunny. Highs around 61 at the shore and 71 to
76 inland.

&&

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

.TODAY...Partly sunny with a 30 percent chance of rain showers
early, then mostly sunny by late morning. Highs around 61 at the
shore and 75 to 80 inland. Southwest winds 5 to 15 mph. Waves 2 to
4 feet subsiding to 1 to 2 feet.
.TONIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows 57 to 62 inland and around 50 at the shore. Southwest
winds 5 to 10 mph becoming southeast late. Waves subsiding to calm
to 1 foot.
.SUNDAY...A 20 percent chance of rain showers through early
afternoon. Partly sunny. Highs around 60 at the shore and 74 to
79 inland. East winds up to 10 mph. Waves calm to 1 foot.
.SUNDAY NIGHT...A slight chance of rain showers through midnight,
then a chance of rain showers and a slight chance of thunderstorms
late. Mostly cloudy. Lows 57 to 62 inland and around 49 at the
shore. Northeast winds 5 to 10 mph becoming up to 10 mph late.
Chance of precipitation 50 percent. Waves calm to 1 foot.
.MONDAY...A chance of rain showers and a slight chance of
thunderstorms through early afternoon, then a slight chance of rain
showers and thunderstorms by mid afternoon. Partly sunny. Highs
around 60 at the shore and 74 to 79 inland. Northeast winds up to
10 mph. Chance of precipitation 50 percent. Waves calm to 1 foot.
.MONDAY NIGHT...Mostly cloudy. Lows 56 to 61 inland and around 50 at
the shore.
.TUESDAY AND TUESDAY NIGHT...Partly cloudy. Highs around 61 at the
shore and 73 to 78 inland. Lows 55 to 60 inland and around 51 at the
shore.
.WEDNESDAY THROUGH THURSDAY NIGHT...Partly cloudy. Highs around
60 at the shore and 68 to 73 inland. Lows 58 to 63 inland and around
52 at the shore.
.FRIDAY...Partly sunny. Highs around 66 at the shore and 73 to
78 inland.

&&

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

.TODAY...Mostly cloudy with a 30 percent chance of rain showers
early, then mostly sunny by late morning. Highs around 62 at the
shore and 74 to 79 inland. Southwest winds 5 to 15 mph. Waves 3 to
5 feet subsiding to 1 to 2 feet.
.TONIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows 56 to 61 inland and around 52 at the shore. Southwest
winds up to 10 mph. Waves subsiding to calm to 1 foot.
.SUNDAY...A 40 percent chance of rain showers through early
afternoon. Partly sunny. Highs around 62 at the shore and 76 to
81 inland. East winds up to 10 mph becoming northeast late. Waves
calm to 1 foot.
.SUNDAY NIGHT...A slight chance of rain showers through midnight,
then a chance of rain showers and a slight chance of thunderstorms
late. Mostly cloudy. Lows 56 to 61 inland and around 50 at the
shore. Northeast winds up to 5 mph. Chance of precipitation
50 percent. Waves calm to 1 foot.
.MONDAY...A chance of rain showers and thunderstorms through early
afternoon, then a slight chance of rain showers and thunderstorms by
mid afternoon. Mostly cloudy. Highs around 60 at the shore and 74 to
79 inland. Northeast winds up to 10 mph. Chance of precipitation
50 percent. Waves calm to 1 foot.
.MONDAY NIGHT...Mostly cloudy. Lows 56 to 61 inland and around 53 at
the shore.
.TUESDAY THROUGH WEDNESDAY...Partly cloudy. Highs around 62 at the
shore and 72 to 77 inland. Lows 56 to 61 inland and around 54 at the
shore.
.WEDNESDAY NIGHT THROUGH FRIDAY...Mostly cloudy. Lows 59 to
64 inland and around 55 at the shore. Highs around 64 at the shore
and 74 to 79 inland.

&&


$$