Recreational Report
Issued by NWS Marquette, MI

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Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
419 AM EDT Mon Apr 22 2024

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

.TODAY...Warmer. Partly cloudy. Highs around 47 at the shore and
52 to 57 inland. Southwest winds 10 to 20 mph. Waves 1 to 2 feet
building to 2 to 3 feet.
.TONIGHT...Rain showers likely and a slight chance of thunderstorms
through midnight, then a chance of rain showers and a slight chance
of thunderstorms late. Mostly cloudy. Lows around 34. Southwest
winds 10 to 15 mph becoming northwest late. Chance of precipitation
70 percent. Waves subsiding to 1 to 2 feet.
.TUESDAY...Windy, cooler. Cloudy with a chance of rain and snow
showers through early afternoon, then partly sunny with a slight
chance of snow showers by mid afternoon. Highs around 40. Northeast
winds 15 to 25 mph. Chance of precipitation 50 percent. Waves
building to 4 to 7 feet subsiding to 2 to 4 feet.
.TUESDAY NIGHT...Mostly clear. Lows 25 to 30. Northeast winds 15 to
20 mph decreasing to 10 to 15 mph late. Waves building to 3 to
5 feet subsiding to 1 to 2 feet.
.WEDNESDAY...Sunny. Highs around 38. East winds 5 to 10 mph becoming
south 10 to 15 mph by mid afternoon. Waves subsiding to calm to
1 foot.
.WEDNESDAY NIGHT...Mostly clear. Lows 30 to 35.
.THURSDAY AND THURSDAY NIGHT...Warmer. Partly cloudy. Highs 46 to
51. Lows around 40.
.FRIDAY...Partly sunny. Highs 48 to 53.
.FRIDAY NIGHT...A chance of rain showers through midnight, then rain
showers late. Cloudy. Lows 38 to 43. Chance of showers 80 percent.
.SATURDAY...Rain showers likely. Highs around 49. Chance of showers
70 percent.
.SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 30 percent chance
of rain showers. Lows 34 to 39. Highs 44 to 49.

&&

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

.TODAY...Warmer. Partly cloudy. Highs 51 to 56. Southwest winds
10 to 20 mph. Waves 1 to 2 feet building to 2 to 3 feet subsiding to
1 to 2 feet.
.TONIGHT...Rain showers likely and a slight chance of thunderstorms
through midnight, then a chance of rain showers and a slight chance
of thunderstorms late. Mostly cloudy. Lows around 34. Southwest
winds 10 to 15 mph becoming northwest 10 to 20 mph late. Chance of
precipitation 60 percent. Waves building to 2 to 3 feet subsiding to
1 to 2 feet.
.TUESDAY...Windy, cooler. Cloudy with a chance of rain and snow
showers through early afternoon, then partly sunny with a slight
chance of snow showers by mid afternoon. Highs around 39. Northeast
winds 15 to 25 mph. Chance of precipitation 50 percent. Waves
building to 5 to 8 feet subsiding to 3 to 5 feet.
.TUESDAY NIGHT...Breezy. Mostly clear. Lows around 27. Northeast
winds 15 to 25 mph decreasing to 10 to 20 mph late. Waves subsiding
to 2 to 3 feet.
.WEDNESDAY...Sunny. Highs around 37. East winds 10 to 15 mph
becoming south by mid afternoon. Waves subsiding to 1 to 2 feet.
.WEDNESDAY NIGHT AND THURSDAY...Warmer. Mostly clear. Lows around
32. Highs 45 to 50.
.THURSDAY NIGHT...Partly cloudy through midnight then becoming
mostly cloudy. Lows around 39.
.FRIDAY...Partly sunny. Highs 46 to 51.
.FRIDAY NIGHT...A chance of rain showers through midnight, then rain
showers late. Cloudy. Lows around 40. Chance of showers 80 percent.
.SATURDAY...Rain showers likely. Highs 46 to 51. Chance of showers
70 percent.
.SATURDAY NIGHT AND SUNDAY...A 30 percent chance of rain showers.
Mostly cloudy. Lows around 36. Highs 43 to 48.

&&

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

.TODAY...Warmer. Partly cloudy. Highs 52 to 57. Southwest winds
10 to 20 mph. Waves 1 to 2 feet building to 2 to 3 feet, then
subsiding to 1 to 2 feet.
.TONIGHT...Rain showers likely and a slight chance of thunderstorms
through midnight, then a chance of rain showers and a slight chance
of thunderstorms late. Mostly cloudy. Lows around 34. Southwest
winds 10 to 15 mph becoming northwest 10 to 20 mph late. Chance of
precipitation 60 percent. Waves building to 2 to 3 feet.
.TUESDAY...Windy. Much colder. Cloudy with a chance of rain and snow
showers through early afternoon, then partly sunny with a slight
chance of snow showers by mid afternoon. Highs around 39. Northeast
winds 15 to 25 mph. Chance of precipitation 50 percent. Waves
building to 5 to 8 feet subsiding to 3 to 5 feet.
.TUESDAY NIGHT...Breezy. Mostly clear. Lows 25 to 30. Northeast
winds 15 to 25 mph decreasing to 10 to 20 mph late. Waves building
to 3 to 5 feet subsiding to 2 to 3 feet.
.WEDNESDAY...Sunny. Highs around 38. East winds 10 to 15 mph
becoming south by mid afternoon. Waves subsiding to 1 to 2 feet.
.WEDNESDAY NIGHT AND THURSDAY...Warmer. Mostly clear. Lows 30 to 35.
Highs 46 to 51.
.THURSDAY NIGHT AND FRIDAY...Mostly cloudy. Lows around 39. Highs
47 to 52.
.FRIDAY NIGHT...A chance of rain showers through midnight, then rain
showers late. Cloudy. Lows around 40. Chance of showers 80 percent.
.SATURDAY...Rain showers likely. Highs 46 to 51. Chance of showers
70 percent.
.SATURDAY NIGHT AND SUNDAY...A 30 percent chance of rain showers.
Mostly cloudy. Lows around 36. Highs 44 to 49.

&&

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

.TODAY...Warmer. Partly cloudy. Highs 50 to 55. Southwest winds
10 to 15 mph. Waves 1 to 2 feet building to 2 to 3 feet.
.TONIGHT...Rain showers likely and a slight chance of thunderstorms
through midnight, then a chance of rain showers and a slight chance
of thunderstorms late. Mostly cloudy. Lows around 35. Southwest
winds 10 to 15 mph becoming northwest late. Chance of precipitation
70 percent. Waves subsiding to 1 to 2 feet.
.TUESDAY...Breezy, cooler. Cloudy with a chance of rain and snow
showers through early afternoon, then partly sunny with a slight
chance of snow showers by mid afternoon. Highs around 40. North
winds 15 to 25 mph. Chance of precipitation 40 percent. Waves
building to 3 to 5 feet.
.TUESDAY NIGHT...Clear. Lows around 28. Northeast winds 15 to 20 mph
decreasing to 10 to 15 mph late. Waves subsiding to 2 to 3 feet.
.WEDNESDAY...Sunny. Highs around 37. East winds 5 to 15 mph becoming
south 10 to 15 mph by mid afternoon. Waves subsiding to 1 to 2 feet.
.WEDNESDAY NIGHT AND THURSDAY...Warmer. Mostly clear. Lows around
33. Highs 46 to 51.
.THURSDAY NIGHT...Partly cloudy through midnight then becoming
mostly cloudy. Lows around 40.
.FRIDAY...Partly sunny. Highs 48 to 53.
.FRIDAY NIGHT...A chance of rain showers through midnight, then rain
showers late. Cloudy. Lows around 40. Chance of showers 80 percent.
.SATURDAY...Rain showers likely. Highs around 48. Chance of showers
70 percent.
.SATURDAY NIGHT AND SUNDAY...A 30 percent chance of rain showers.
Mostly cloudy. Lows around 36. Highs 44 to 49.

&&


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