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MIZ001-070800-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
501 PM EDT Tue May 6 2025

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

.TONIGHT...Breezy. A 20 percent chance of rain showers through
midnight. Partly cloudy. Lows around 39. North winds 15 to 25 mph
becoming northeast 10 to 15 mph late. Waves calm to 1 foot building
to 2 to 3 feet subsiding to 1 to 2 feet.
.WEDNESDAY...Much colder. Sunny. Highs 43 to 48. Northeast winds
10 to 20 mph becoming east 5 to 10 mph by mid afternoon. Waves
subsiding to calm to 1 foot.
.WEDNESDAY NIGHT...Mostly clear. Lows around 34. Northeast winds up
to 5 mph becoming north by midnight, then becoming northeast late
becoming east late. Waves calm to 1 foot.
.THURSDAY...Sunny. Highs 44 to 49. East winds 5 to 10 mph becoming
southeast by late morning. Waves calm to 1 foot.
.THURSDAY NIGHT...Mostly clear. Lows around 35. Southeast winds 5 to
10 mph becoming southwest late. Waves calm to 1 foot.
.FRIDAY...Much warmer. Sunny. Highs around 56 at the shore and 61 to
66 inland.
.FRIDAY NIGHT AND SATURDAY...Cooler. Partly cloudy. Lows around 41.
Highs 50 to 55.
.SATURDAY NIGHT AND SUNDAY...Mostly cloudy. Lows around 39. Highs
around 54 at the shore and 58 to 63 inland.
.SUNDAY NIGHT...Mostly cloudy through midnight then becoming partly
cloudy. Lows around 43.
.MONDAY THROUGH TUESDAY...Partly cloudy. Highs around 55 at the
shore and 59 to 64 inland. Lows around 44.

&&

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

.TONIGHT...Breezy. A 20 percent chance of rain showers through
midnight. Partly cloudy. Lows around 38. North winds 15 to 25 mph.
Waves 2 to 3 feet building to 2 to 4 feet.
.WEDNESDAY...Much colder. Sunny. Highs 40 to 45. Northeast winds
10 to 20 mph decreasing to 5 to 10 mph by early afternoon, then
becoming east late. Waves subsiding to calm to 1 foot.
.WEDNESDAY NIGHT...Clear. Lows around 35. Northeast winds up to
5 mph becoming north by midnight, then becoming northeast late
becoming east late. Waves calm to 1 foot.
.THURSDAY...Sunny. Highs around 41 at the shore and 44 to 49 inland.
East winds 5 to 10 mph becoming southeast by mid afternoon. Waves
calm to 1 foot.
.THURSDAY NIGHT...Mostly clear. Lows around 36. Southeast winds 5 to
10 mph becoming south late. Waves calm to 1 foot.
.FRIDAY...Much warmer. Sunny. Highs around 50 at the shore and 59 to
64 inland.
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...Cooler. Partly cloudy. Lows
around 40. Highs around 46 at the shore and 49 to 54 inland.
.SUNDAY AND SUNDAY NIGHT...Mostly cloudy. Highs around 49 at the
shore and 56 to 61 inland. Lows around 42.
.MONDAY AND MONDAY NIGHT...Partly cloudy. Highs around 50 at the
shore and 57 to 62 inland. Lows around 43.
.TUESDAY...Partly cloudy. Highs 51 to 56.

&&

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

.TONIGHT...Breezy. A 20 percent chance of rain showers through
midnight. Partly cloudy. Lows around 38. North winds 15 to 25 mph.
Waves 2 to 3 feet building to 2 to 4 feet.
.WEDNESDAY...Much colder. Sunny. Highs 41 to 46. Northeast winds
10 to 20 mph becoming east 5 to 10 mph by mid afternoon. Waves
subsiding to calm to 1 foot.
.WEDNESDAY NIGHT...Clear. Lows around 34. Northeast winds up to
5 mph becoming north by midnight, then becoming northeast late
becoming east late. Waves calm to 1 foot.
.THURSDAY...Sunny. Highs around 41 at the shore and 45 to 50 inland.
East winds 5 to 10 mph becoming southeast by late morning. Waves
calm to 1 foot.
.THURSDAY NIGHT...Mostly clear. Lows around 35. South winds 5 to
10 mph. Waves calm to 1 foot.
.FRIDAY...Much warmer. Sunny. Highs around 51 at the shore and 60 to
65 inland.
.FRIDAY NIGHT AND SATURDAY...Cooler. Partly cloudy. Lows around 40.
Highs 49 to 54.
.SATURDAY NIGHT AND SUNDAY...Mostly cloudy. Lows around 39. Highs
around 50 at the shore and 57 to 62 inland.
.SUNDAY NIGHT...Mostly cloudy. Lows around 42.
.MONDAY AND MONDAY NIGHT...Partly cloudy. Highs around 51 at the
shore and 58 to 63 inland. Lows around 43.
.TUESDAY...Partly cloudy. Highs 53 to 58.

&&

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

.TONIGHT...A 20 percent chance of rain showers by midnight. Partly
cloudy. Lows around 39. North winds 10 to 20 mph. Waves calm to
1 foot building to 2 to 3 feet subsiding to 1 to 2 feet.
.WEDNESDAY...Much colder. Sunny. Highs 42 to 47. Northeast winds
10 to 20 mph becoming east 5 to 10 mph by mid afternoon. Waves
subsiding to calm to 1 foot.
.WEDNESDAY NIGHT...Clear. Lows around 34. Northeast winds up to
5 mph becoming north by midnight, then becoming northeast late
becoming northeast 5 to 10 mph late. Waves calm to 1 foot.
.THURSDAY...Sunny. Highs around 43 at the shore and 45 to 50 inland.
East winds up to 10 mph. Waves calm to 1 foot.
.THURSDAY NIGHT...Mostly clear. Lows around 35. Southeast winds up
to 10 mph becoming south late. Waves calm to 1 foot.
.FRIDAY...Much warmer. Sunny. Highs around 53 at the shore and 59 to
64 inland.
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...Cooler. Partly cloudy. Lows
around 40. Highs around 48 at the shore and 50 to 55 inland.
.SUNDAY...Warmer. Partly sunny. Highs around 53 at the shore and
57 to 62 inland.
.SUNDAY NIGHT THROUGH TUESDAY...Partly cloudy. Lows around 44. Highs
around 54 at the shore and 58 to 63 inland.

&&


$$