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MIZ001-160800-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
501 PM EDT Tue Jul 15 2025

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

.TONIGHT...Cloudy. Patchy fog through midnight. Rain showers likely
and a chance of thunderstorms through midnight, then a chance of
rain showers late. Lows around 54. North winds 5 to 15 mph. Waves
calm to 1 foot building to 1 to 2 feet.
.WEDNESDAY...A chance of rain showers through early afternoon, then
a slight chance of rain showers by mid afternoon. Mostly cloudy.
Highs around 60 at the shore and 67 to 72 inland. Northeast winds
10 to 15 mph decreasing to 5 to 10 mph late. Chance of showers
40 percent. Waves building to 2 to 3 feet subsiding to calm to
1 foot.
.WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows around 55. Northeast winds 5 to 10 mph becoming north
by midnight. Waves calm to 1 foot.
.THURSDAY...Warmer, sunny. Highs around 64 at the shore and 72 to
77 inland. Northwest winds 5 to 10 mph becoming southwest 5 to
15 mph by mid afternoon. Waves calm to 1 foot.
.THURSDAY NIGHT...Mostly clear. Lows around 57. Southwest winds 5 to
15 mph. Waves building to 1 to 2 feet subsiding to calm to 1 foot.
.FRIDAY...Partly cloudy. Highs around 64 at the shore and 73 to
78 inland.
.FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows around 57.
.SATURDAY...Partly sunny. Highs around 64 at the shore and 71 to
76 inland.
.SATURDAY NIGHT...Partly cloudy. Lows 54 to 59.
.SUNDAY...Sunny. Highs around 65 at the shore and 73 to 78 inland.
.SUNDAY NIGHT AND MONDAY...Partly cloudy. Lows around 56. Highs
around 65 at the shore and 73 to 78 inland.
.MONDAY NIGHT...Mostly cloudy with a 30 percent chance of rain
showers. Lows 55 to 60.
.TUESDAY...Partly sunny. Highs around 65 at the shore and 73 to
78 inland.

&&

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

.TONIGHT...Cloudy. Patchy fog through midnight. Rain showers likely
and a chance of thunderstorms through midnight. A chance of rain
showers late. Lows around 52. North winds 5 to 15 mph. Waves calm to
1 foot building to 1 to 2 feet.
.WEDNESDAY...A chance of rain showers through early afternoon, then
a slight chance of rain showers by mid afternoon. Mostly cloudy.
Highs around 57 at the shore and 62 to 67 inland. Northeast winds
5 to 15 mph. Chance of showers 30 percent. Waves subsiding to calm
to 1 foot.
.WEDNESDAY NIGHT...A slight chance of rain showers through midnight,
then a chance of rain showers late. Mostly cloudy. Lows 51 to 56.
North winds 5 to 10 mph. Chance of showers 40 percent. Waves calm to
1 foot.
.THURSDAY...Sunny. Highs around 58 at the shore and 67 to 72 inland.
Northwest winds 5 to 10 mph becoming southwest 5 to 15 mph by mid
afternoon. Waves calm to 1 foot.
.THURSDAY NIGHT...Mostly clear. Lows 52 to 57. Southwest winds 5 to
15 mph. Waves calm to 1 foot.
.FRIDAY...Mostly sunny through early afternoon then becoming partly
sunny. Highs around 59 at the shore and 69 to 74 inland.
.FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows 51 to 56.
.SATURDAY AND SATURDAY NIGHT...Mostly cloudy. Highs around 56 at the
shore and 65 to 70 inland. Lows 50 to 55.
.SUNDAY THROUGH MONDAY...Partly cloudy. Highs around 57 at the shore
and 69 to 74 inland. Lows 52 to 57 inland and around 49 at the
shore.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows 52 to 57 inland and
around 50 at the shore. Highs around 58 at the shore and 67 to
72 inland.

&&

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

.TONIGHT...Cloudy. Patchy fog through midnight. Rain showers likely
and a chance of thunderstorms through midnight. A chance of rain
showers late. Lows 50 to 55. North winds 5 to 15 mph. Waves calm to
1 foot building to 1 to 2 feet.
.WEDNESDAY...Mostly cloudy with a 20 percent chance of rain showers.
Highs around 58 at the shore and 65 to 70 inland. Northeast winds
5 to 15 mph. Waves subsiding to calm to 1 foot.
.WEDNESDAY NIGHT...A slight chance of rain showers through midnight,
then a chance of rain showers late. Mostly cloudy. Lows 52 to 57.
Northeast winds 5 to 10 mph becoming north by midnight. Chance of
showers 40 percent. Waves calm to 1 foot.
.THURSDAY...Warmer, sunny. Highs around 61 at the shore and 71 to
76 inland. Northwest winds 5 to 10 mph becoming southwest 5 to
15 mph by mid afternoon. Waves calm to 1 foot.
.THURSDAY NIGHT...Mostly clear. Lows 53 to 58. Southwest winds 5 to
15 mph. Waves calm to 1 foot.
.FRIDAY...Mostly sunny through early afternoon then becoming partly
sunny. Highs around 61 at the shore and 72 to 77 inland.
.FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows 52 to 57.
.SATURDAY...Partly sunny. Highs around 59 at the shore and 69 to
74 inland.
.SATURDAY NIGHT THROUGH MONDAY...Partly cloudy. Lows 51 to 56. Highs
around 58 at the shore and 72 to 77 inland.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows 53 to 58 inland and
around 50 at the shore. Highs around 60 at the shore and 71 to
76 inland.

&&

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

.TONIGHT...Cloudy. Patchy fog through midnight. Rain showers likely
and a chance of thunderstorms through midnight, then a chance of
rain showers and a slight chance of thunderstorms late. Lows around
54. North winds 5 to 15 mph. Waves calm to 1 foot building to 1 to
2 feet.
.WEDNESDAY...A chance of rain showers through early afternoon, then
a slight chance of rain showers by mid afternoon. Mostly cloudy.
Highs around 58 at the shore and 66 to 71 inland. Northeast winds
10 to 15 mph decreasing to 5 to 10 mph late. Chance of showers
40 percent. Waves subsiding to calm to 1 foot.
.WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows around 55. Northeast winds 5 to 10 mph becoming north
by midnight. Waves calm to 1 foot.
.THURSDAY...Warmer, sunny. Highs around 62 at the shore and 72 to
77 inland. North winds 5 to 10 mph becoming southwest 5 to 15 mph by
mid afternoon. Waves calm to 1 foot.
.THURSDAY NIGHT...Mostly clear. Lows around 56. Southwest winds 5 to
15 mph. Waves calm to 1 foot.
.FRIDAY...Partly cloudy. Highs around 63 at the shore and 73 to
78 inland.
.FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of rain
showers. Lows around 56.
.SATURDAY AND SATURDAY NIGHT...Mostly cloudy. Highs around 61 at the
shore and 71 to 76 inland. Lows around 55.
.SUNDAY THROUGH MONDAY...Partly cloudy. Highs around 63 at the shore
and 73 to 78 inland. Lows around 56.
.MONDAY NIGHT...A chance of rain showers late. Mostly cloudy. Lows
around 57. Chance of showers 30 percent.
.TUESDAY...Partly sunny. Highs around 64 at the shore and 74 to
79 inland.

&&


$$