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SXUS43 KMQT 192130
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MIZ001-201030-
Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
530 PM EDT Sat Apr 19 2025

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

.TONIGHT...Partly cloudy. Lows around 24. Southwest winds up to
10 mph becoming south late. Waves calm to 1 foot.
.SUNDAY...Warmer, sunny. Highs 43 to 48. South winds 5 to 10 mph
becoming southeast 5 to 15 mph late. Waves calm to 1 foot.
.SUNDAY NIGHT...Partly cloudy with a slight chance of rain showers
through midnight, then mostly cloudy with rain showers likely and a
slight chance of snow showers late. Little or no snow accumulation.
Lows around 33. Southeast winds 10 to 15 mph becoming east 5 to
15 mph late. Chance of precipitation 70 percent. Waves building to
1 to 2 feet subsiding to calm to 1 foot.
.MONDAY...Breezy. Rain and snow showers likely through early
afternoon, then a chance of rain and snow showers by mid afternoon.
Cloudy. Highs around 42. Northeast winds 10 to 20 mph becoming north
15 to 25 mph by mid afternoon. Chance of precipitation 70 percent.
Waves building to 3 to 5 feet.
.MONDAY NIGHT...Mostly cloudy through midnight then clearing. Lows
32 to 37. Northwest winds 5 to 15 mph. Waves subsiding to 1 to
2 feet.
.TUESDAY...Partly sunny. Highs around 44.
.TUESDAY NIGHT...Mostly cloudy with a 50 percent chance of rain
showers. Lows 34 to 39.
.WEDNESDAY...Partly sunny. Highs 45 to 50.
.WEDNESDAY NIGHT...Partly cloudy. Lows 34 to 39.
.THURSDAY AND THURSDAY NIGHT...Mostly cloudy. Highs 45 to 50. Lows
34 to 39.
.FRIDAY...Partly cloudy. Highs 46 to 51.
.FRIDAY NIGHT AND SATURDAY...Mostly cloudy. Lows 34 to 39. Highs
around 45.

&&

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

.TONIGHT...Partly cloudy. Lows around 25. Southwest winds up to
10 mph becoming south late. Waves calm to 1 foot.
.SUNDAY...Sunny. Highs 39 to 44. South winds 5 to 10 mph becoming
southeast 5 to 15 mph by mid afternoon. Waves building to 2 to
3 feet.
.SUNDAY NIGHT...Partly cloudy with a slight chance of rain showers
through midnight, then mostly cloudy with rain showers likely and a
slight chance of snow showers late. Little or no snow accumulation.
Lows around 33. Southeast winds 5 to 15 mph becoming east 10 to
20 mph late. Chance of precipitation 60 percent. Waves 2 to 3 feet.
.MONDAY...Breezy. Rain and snow showers likely through early
afternoon, then rain showers likely and a slight chance of snow
showers by mid afternoon. Highs around 41. Northeast winds 15 to
25 mph becoming north by mid afternoon. Chance of precipitation
70 percent. Waves building to 3 to 6 feet.
.MONDAY NIGHT...Breezy. Mostly cloudy through midnight then becoming
partly cloudy. Lows around 35. North winds 10 to 20 mph. Waves
subsiding to 1 to 2 feet.
.TUESDAY...Partly sunny. Highs 41 to 46.
.TUESDAY NIGHT...A chance of rain showers late. Mostly cloudy. Lows
around 37. Chance of showers 40 percent.
.WEDNESDAY...Partly sunny. Highs 44 to 49.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 37.
.THURSDAY AND THURSDAY NIGHT...Mostly cloudy. Highs around 43 at the
shore and 45 to 50 inland. Lows 34 to 39.
.FRIDAY...Partly sunny through early afternoon then becoming mostly
sunny. Highs 44 to 49.
.FRIDAY NIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows around 37.
.SATURDAY...Partly cloudy. Highs around 44.

&&

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

.TONIGHT...Partly cloudy. Lows around 25. Southwest winds 5 to
10 mph becoming south late. Waves calm to 1 foot.
.SUNDAY...Sunny. Highs around 40 at the shore and 42 to 47 inland.
South winds 5 to 15 mph becoming southeast 10 to 15 mph late. Waves
building to 1 to 2 feet.
.SUNDAY NIGHT...Partly cloudy with a slight chance of rain showers
through midnight, then mostly cloudy with rain and snow showers
likely late. Little or no snow accumulation. Lows around 33.
Southeast winds 5 to 15 mph becoming east 10 to 15 mph late. Chance
of precipitation 60 percent. Waves building to 2 to 3 feet.
.MONDAY...Breezy. Rain and snow showers likely through early
afternoon, then a chance of rain showers and a slight chance of snow
showers by mid afternoon. Cloudy. Highs around 41. Northeast winds
15 to 25 mph becoming north by mid afternoon. Chance of
precipitation 70 percent. Waves building to 3 to 5 feet.
.MONDAY NIGHT...Breezy. Mostly cloudy through midnight then becoming
partly cloudy. Lows 32 to 37. North winds 10 to 20 mph. Waves
subsiding to 1 to 2 feet.
.TUESDAY...Partly sunny. Highs around 43.
.TUESDAY NIGHT...A chance of rain showers late. Mostly cloudy. Lows
34 to 39. Chance of showers 40 percent.
.WEDNESDAY...Partly sunny. Highs 45 to 50.
.WEDNESDAY NIGHT...Partly cloudy. Lows 34 to 39.
.THURSDAY AND THURSDAY NIGHT...Mostly cloudy. Highs 44 to 49. Lows
34 to 39.
.FRIDAY...Partly cloudy. Highs 45 to 50.
.FRIDAY NIGHT AND SATURDAY...Mostly cloudy. Lows 35 to 40. Highs
around 44.

&&

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

.TONIGHT...Partly cloudy. Lows around 25. Southwest winds up to
10 mph becoming south late. Waves calm to 1 foot.
.SUNDAY...Sunny. Highs 41 to 46. South winds 5 to 10 mph becoming
east 10 to 15 mph late. Waves building to 1 to 2 feet.
.SUNDAY NIGHT...Partly cloudy with a slight chance of rain showers
through midnight, then mostly cloudy with rain showers likely and a
slight chance of snow showers late. Little or no snow accumulation.
Lows around 34. East winds 5 to 15 mph becoming northeast 10 to
15 mph late. Chance of precipitation 70 percent. Waves building to
2 to 3 feet.
.MONDAY...Breezy. Rain and snow showers through early afternoon,
then a chance of rain showers and a slight chance of snow showers by
mid afternoon. Cloudy. Highs around 41. Northeast winds 10 to 20 mph
becoming north 15 to 25 mph by mid afternoon. Chance of
precipitation 80 percent. Waves building to 3 to 5 feet.
.MONDAY NIGHT...Mostly cloudy through midnight then clearing. Lows
around 35. Northwest winds 5 to 15 mph. Waves subsiding to calm to
1 foot.
.TUESDAY...Partly sunny. Highs around 43.
.TUESDAY NIGHT...Mostly cloudy with a 50 percent chance of rain
showers. Lows 35 to 40.
.WEDNESDAY AND WEDNESDAY NIGHT...Partly cloudy. Highs 45 to 50. Lows
34 to 39.
.THURSDAY AND THURSDAY NIGHT...Mostly cloudy. Highs 44 to 49. Lows
34 to 39.
.FRIDAY...Partly cloudy. Highs 45 to 50.
.FRIDAY NIGHT...Partly cloudy through midnight then becoming mostly
cloudy. Lows 35 to 40.
.SATURDAY...Partly cloudy. Highs around 45.

&&

$$