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MIZ001-050800-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
501 PM EDT Fri Jul 4 2025

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

.TONIGHT...Isolated rain showers and thunderstorms through midnight,
then a chance of rain showers and thunderstorms late. Mostly cloudy.
Lows 56 to 61 inland and around 51 at the shore. South winds up to
10 mph becoming southwest by midnight. Waves calm to 1 foot building
to 2 to 3 feet.
.SATURDAY...Rain showers likely and a chance of thunderstorms
through early afternoon, then rain showers and a chance of
thunderstorms by mid afternoon. Patchy fog. Highs around 62 at the
shore and 70 to 75 inland. Southwest winds up to 10 mph becoming
north late. Chance of precipitation 80 percent. Waves subsiding to
calm to 1 foot.
.SATURDAY NIGHT...Mostly cloudy with a chance of rain showers and a
slight chance of thunderstorms through midnight, then partly cloudy
with a slight chance of rain showers late. Lows 53 to 58. North
winds 5 to 15 mph becoming 10 to 15 mph late. Chance of
precipitation 30 percent. Waves building to 2 to 3 feet.
.SUNDAY...Sunny. Highs around 62 at the shore and 70 to 75 inland.
Northeast winds 10 to 20 mph decreasing to 5 to 10 mph by mid
afternoon. Waves subsiding to calm to 1 foot.
.SUNDAY NIGHT...Partly cloudy. Lows 51 to 56. Northwest winds 5 to
10 mph becoming northeast late. Waves calm to 1 foot.
.MONDAY...Sunny through early afternoon then becoming partly sunny.
Highs around 60 at the shore and 68 to 73 inland.
.MONDAY NIGHT...Mostly cloudy with a chance of rain showers. Lows
50 to 55. Chance of showers 40 percent.
.TUESDAY...Partly cloudy. Highs around 59 at the shore and 68 to
73 inland.
.TUESDAY NIGHT THROUGH THURSDAY NIGHT...Mostly cloudy. Lows 50 to
55. Highs around 60 at the shore and 69 to 74 inland.
.FRIDAY...A 30 percent chance of rain showers by mid afternoon.
Partly sunny. Highs around 61 at the shore and 69 to 74 inland.

&&

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

.TONIGHT...Isolated rain showers and thunderstorms through midnight,
then a chance of rain showers and thunderstorms late. Patchy fog
late. Mostly cloudy. Lows 52 to 57 inland and around 48 at the
shore. South winds up to 10 mph becoming southwest by midnight.
Waves 2 to 3 feet.
.SATURDAY...Rain showers likely and a chance of thunderstorms
through early afternoon, then rain showers and a chance of
thunderstorms by mid afternoon. Patchy fog. Highs around 57 at the
shore and 66 to 71 inland. Southwest winds 5 to 15 mph becoming
northwest 5 to 10 mph late. Chance of precipitation 80 percent.
Waves subsiding to calm to 1 foot.
.SATURDAY NIGHT...Mostly cloudy with a chance of rain showers and a
slight chance of thunderstorms through midnight, then partly cloudy
with a chance of rain showers late. Lows 50 to 55. North winds 5 to
15 mph becoming 10 to 15 mph late. Chance of precipitation
30 percent. Waves building to 2 to 3 feet.
.SUNDAY...Sunny. Highs around 57 at the shore and 66 to 71 inland.
North winds 5 to 15 mph becoming northwest 5 to 10 mph late. Waves
subsiding to calm to 1 foot.
.SUNDAY NIGHT...Partly cloudy. Lows 48 to 53. Northwest winds 5 to
10 mph becoming northeast late. Waves calm to 1 foot.
.MONDAY...Partly cloudy. Highs around 53 at the shore and 63 to
68 inland.
.MONDAY NIGHT...A chance of rain showers late. Mostly cloudy. Lows
47 to 52. Chance of showers 30 percent.
.TUESDAY...Partly cloudy. Highs around 54 at the shore and 63 to
68 inland.
.TUESDAY NIGHT THROUGH FRIDAY...Mostly cloudy. Lows 48 to 53. Highs
around 55 at the shore and 64 to 69 inland.

&&

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

.TONIGHT...Scattered rain showers and thunderstorms through
midnight, then a chance of rain showers and thunderstorms late.
Patchy fog late. Mostly cloudy. Lows 53 to 58 inland and around
49 at the shore. South winds up to 10 mph becoming southwest by
midnight, then decreasing to up to 10 mph late. Waves 1 to 2 feet.
.SATURDAY...Rain showers likely and a chance of thunderstorms
through early afternoon, then rain showers and a chance of
thunderstorms by mid afternoon. Patchy fog. Highs around 59 at the
shore and 68 to 73 inland. Southwest winds up to 10 mph becoming
north late. Chance of precipitation 80 percent. Waves subsiding to
calm to 1 foot.
.SATURDAY NIGHT...Mostly cloudy with a chance of rain showers and a
slight chance of thunderstorms through midnight, then partly cloudy
with a chance of rain showers late. Lows 51 to 56. Northwest winds
5 to 15 mph becoming north 10 to 15 mph late. Chance of
precipitation 30 percent. Waves building to 2 to 3 feet.
.SUNDAY...Sunny. Highs around 59 at the shore and 69 to 74 inland.
North winds 5 to 15 mph becoming northwest 5 to 10 mph late. Waves
subsiding to calm to 1 foot.
.SUNDAY NIGHT...Partly cloudy. Lows 49 to 54. Northwest winds 5 to
10 mph becoming northeast late. Waves calm to 1 foot.
.MONDAY...Sunny through early afternoon then becoming partly cloudy.
Highs around 56 at the shore and 66 to 71 inland.
.MONDAY NIGHT...A chance of rain showers late. Mostly cloudy. Lows
48 to 53. Chance of showers 30 percent.
.TUESDAY...Partly cloudy. Highs around 55 at the shore and 66 to
71 inland.
.TUESDAY NIGHT THROUGH FRIDAY...Mostly cloudy. Lows 49 to 54. Highs
around 57 at the shore and 67 to 72 inland.

&&

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

.TONIGHT...Isolated rain showers and thunderstorms through midnight,
then a chance of rain showers and thunderstorms late. Patchy fog
late. Mostly cloudy. Lows 53 to 58. South winds up to 10 mph
becoming southwest by midnight. Waves 1 to 2 feet building to 2 to
3 feet.
.SATURDAY...Rain showers likely and a chance of thunderstorms
through early afternoon, then rain showers and a chance of
thunderstorms by mid afternoon. Patchy fog. Highs around 62 at the
shore and 71 to 76 inland. Southwest winds up to 10 mph becoming
north late. Chance of precipitation 80 percent. Waves subsiding to
calm to 1 foot.
.SATURDAY NIGHT...Mostly cloudy with a chance of rain showers and a
slight chance of thunderstorms through midnight, then partly cloudy
with a chance of rain showers late. Lows 53 to 58. North winds 5 to
15 mph becoming 10 to 15 mph late. Chance of precipitation
30 percent. Waves calm to 1 foot.
.SUNDAY...Sunny. Highs around 61 at the shore and 71 to 76 inland.
Northeast winds 10 to 15 mph decreasing to 5 to 10 mph by mid
afternoon. Waves building to 1 to 2 feet subsiding to calm to
1 foot.
.SUNDAY NIGHT...Partly cloudy. Lows 50 to 55. Northwest winds 5 to
10 mph becoming northeast late. Waves calm to 1 foot.
.MONDAY...Sunny through early afternoon then becoming partly cloudy.
Highs around 58 at the shore and 68 to 73 inland.
.MONDAY NIGHT...A chance of rain showers late. Mostly cloudy. Lows
49 to 54. Chance of showers 40 percent.
.TUESDAY...Partly cloudy. Highs around 58 at the shore and 68 to
73 inland.
.TUESDAY NIGHT THROUGH FRIDAY...Mostly cloudy. Lows 49 to 54. Highs
around 59 at the shore and 69 to 74 inland.

&&


$$