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Recreational Forecast for Isle Royale National Park
National Weather Service Marquette MI
543 AM EDT Fri May 17 2024

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

.TODAY...Warmer. Patchy fog early. A slight chance of rain showers
by early afternoon. A chance of rain showers late. Partly sunny.
Highs around 49 at the shore and 55 to 60 inland. Southwest winds
5 to 10 mph becoming southeast late. Waves 1 to 2 feet subsiding to
calm to 1 foot.
.TONIGHT...A chance of rain showers and a slight chance of
thunderstorms through midnight. Mostly cloudy. Lows around 42. East
winds 5 to 15 mph. Chance of precipitation 30 percent. Waves calm to
1 foot.
.SATURDAY...Much warmer. A slight chance of rain showers and
thunderstorms through early afternoon, then a chance of rain showers
and a slight chance of thunderstorms by mid afternoon. Partly sunny.
Highs around 54 at the shore and 74 to 79 inland. Northeast winds
5 to 15 mph becoming south late. Chance of precipitation 30 percent.
Waves building to 2 to 3 feet.
.SATURDAY NIGHT...A 30 percent chance of rain showers and
thunderstorms through midnight. Partly cloudy. Lows 43 to 48.
Southwest winds 5 to 15 mph. Waves subsiding to 1 to 2 feet, then
building to 2 to 3 feet.
.SUNDAY...Sunny through early afternoon then becoming partly cloudy.
Highs around 52 at the shore and 64 to 69 inland. Southwest winds
10 to 20 mph. Waves 2 to 3 feet.
.SUNDAY NIGHT...A 40 percent chance of rain showers late. Mostly
cloudy. Lows around 46.
.MONDAY...Cooler. Mostly cloudy with a 50 percent chance of rain
showers. Highs around 51 at the shore and 54 to 59 inland.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows around 44. Highs
52 to 57.
.TUESDAY NIGHT AND WEDNESDAY...A 40 percent chance of rain showers.
Mostly cloudy. Lows around 44. Highs 50 to 55.
.WEDNESDAY NIGHT...A chance of rain showers through midnight. Mostly
cloudy. Lows around 41. Chance of showers 30 percent.
.THURSDAY...Partly sunny. Highs 48 to 53.

&&

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

.TODAY...Warmer. Patchy fog early. A 20 percent chance of rain
showers by mid afternoon. Partly sunny. Highs around 45 at the shore
and 53 to 58 inland. Southwest winds 5 to 10 mph becoming southeast
late. Waves 1 to 2 feet subsiding to calm to 1 foot.
.TONIGHT...Patchy fog through midnight. Mostly cloudy with a
20 percent chance of rain showers. Lows around 40. East winds 5 to
15 mph. Waves building to 2 to 3 feet.
.SATURDAY...Much warmer. A slight chance of rain showers through
early afternoon, then a chance of rain showers and a slight chance
of thunderstorms by mid afternoon. Partly sunny. Highs around 51 at
the shore and 69 to 74 inland. Northeast winds 5 to 15 mph becoming
south late. Chance of precipitation 30 percent. Waves building to
3 to 5 feet.
.SATURDAY NIGHT...A 30 percent chance of rain showers and
thunderstorms through midnight. Partly cloudy. Lows around 42.
Southwest winds 5 to 15 mph. Waves subsiding to 1 to 2 feet.
.SUNDAY...Sunny through early afternoon then becoming partly cloudy.
Highs around 49 at the shore and 61 to 66 inland. Southwest winds
10 to 20 mph. Waves building to 2 to 3 feet, then subsiding to 1 to
2 feet.
.SUNDAY NIGHT...A 30 percent chance of rain showers late. Mostly
cloudy. Lows around 45.
.MONDAY...Mostly cloudy with a 50 percent chance of rain showers.
Highs 49 to 54.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows around 42. Highs
49 to 54.
.TUESDAY NIGHT AND WEDNESDAY...A 40 percent chance of rain showers.
Mostly cloudy. Lows around 43. Highs 47 to 52.
.WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain
showers. Lows around 40.
.THURSDAY...Partly sunny. Highs 46 to 51.

&&

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

.TODAY...Warmer. Patchy fog early. A 20 percent chance of rain
showers by mid afternoon. Partly cloudy. Highs around 46 at the
shore and 54 to 59 inland. West winds 5 to 10 mph becoming southeast
late. Waves 1 to 2 feet subsiding to calm to 1 foot.
.TONIGHT...Mostly cloudy with a 20 percent chance of rain showers.
Lows around 40. East winds 5 to 15 mph. Waves building to 1 to
2 feet.
.SATURDAY...Much warmer. A slight chance of rain showers through
early afternoon, then a chance of rain showers and a slight chance
of thunderstorms by mid afternoon. Partly sunny. Highs around 52 at
the shore and 75 to 80 inland. Northeast winds 5 to 15 mph becoming
south late. Chance of precipitation 30 percent. Waves building to
2 to 4 feet.
.SATURDAY NIGHT...A 30 percent chance of rain showers and
thunderstorms through midnight. Partly cloudy. Lows around 44.
Southwest winds 5 to 15 mph. Waves subsiding to 1 to 2 feet.
.SUNDAY...Sunny through early afternoon then becoming partly cloudy.
Highs around 51 at the shore and 66 to 71 inland. Southwest winds
10 to 20 mph. Waves building to 2 to 3 feet, then subsiding to 1 to
2 feet.
.SUNDAY NIGHT...A 30 percent chance of rain showers late. Mostly
cloudy. Lows around 46.
.MONDAY...Cooler. Mostly cloudy with a 50 percent chance of rain
showers. Highs around 51 at the shore and 53 to 58 inland.
.MONDAY NIGHT AND TUESDAY...Mostly cloudy. Lows around 42. Highs
around 51 at the shore and 53 to 58 inland.
.TUESDAY NIGHT AND WEDNESDAY...A 40 percent chance of rain showers.
Mostly cloudy. Lows around 43. Highs 49 to 54.
.WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain
showers. Lows around 40.
.THURSDAY...Partly sunny. Highs 47 to 52.

&&

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

.TODAY...Patchy fog early. A slight chance of rain showers by early
afternoon. A chance of rain showers late. Partly sunny. Highs around
47 at the shore and 54 to 59 inland. West winds 5 to 10 mph becoming
southeast late. Waves 1 to 2 feet subsiding to calm to 1 foot.
.TONIGHT...A chance of rain showers and a slight chance of
thunderstorms through midnight. Mostly cloudy. Lows around 41. East
winds 5 to 15 mph. Chance of precipitation 30 percent. Waves
building to 1 to 2 feet.
.SATURDAY...Much warmer. A slight chance of rain showers through
early afternoon, then a chance of rain showers and a slight chance
of thunderstorms by mid afternoon. Partly sunny. Highs around 55 at
the shore and 73 to 78 inland. Northeast winds 5 to 10 mph becoming
south 5 to 15 mph late. Chance of precipitation 30 percent. Waves
building to 2 to 3 feet.
.SATURDAY NIGHT...A 30 percent chance of rain showers and
thunderstorms through midnight. Partly cloudy. Lows 41 to 46.
Southwest winds 5 to 15 mph. Waves subsiding to 1 to 2 feet.
.SUNDAY...Cooler. Sunny through early afternoon then becoming partly
sunny. Highs around 53 at the shore and 63 to 68 inland. Southwest
winds 10 to 20 mph. Waves building to 2 to 3 feet.
.SUNDAY NIGHT...A 40 percent chance of rain showers late. Mostly
cloudy. Lows around 46.
.MONDAY...Mostly cloudy with a 50 percent chance of rain showers.
Highs around 51 at the shore and 53 to 58 inland.
.MONDAY NIGHT...A chance of rain showers through midnight. Mostly
cloudy. Lows around 43. Chance of showers 30 percent.
.TUESDAY...Partly sunny. Highs 51 to 56.
.TUESDAY NIGHT AND WEDNESDAY...A 40 percent chance of rain showers.
Mostly cloudy. Lows around 43. Highs around 48 at the shore and
50 to 55 inland.
.WEDNESDAY NIGHT...A chance of rain showers through midnight. Mostly
cloudy. Lows around 41. Chance of showers 30 percent.
.THURSDAY...Partly sunny. Highs around 47 at the shore and 49 to
54 inland.

&&


$$