Water Temperature of Lake Superior Near Isle Royale, MI

Current Water Temperature

42.3°F

Measurement Time: Tuesday, November 7, 2023, 12:56 AM EST

Temperature Locations

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Local Points of Interest

Isle Royale National Park; Blake Point

Lake Superior

Station Name: Isle of Royale East, MI (230)
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 587 feet

Nearest Address:
Offshore
Isle Royale, MI

GPS Coordinates: 48.034, -87.73

Nearby Water Temperatures

Lake Superior, Terrace Bay Township, ON (50.1 mi)
Lake Superior, Copper Harbor, MI (61.5 mi)
Washington Creek, Windigo, MI (65.9 mi)
Lake Superior, Calumet, MI (66.7 mi)
Pilgrim River, Houghton, MI (76 mi)
Keweenaw Bay, Jacobsville, MI (79.9 mi)
East Branch Salmon Trout River, Powell, MI (86.4 mi)
Salmon Trout River, Champion, MI (86.8 mi)
Grand Portage River, Grand Portage, MN (90.4 mi)
Falls River, L'Anse, MI (95.8 mi)
Sturgeon River, Pelkie, MI (100.4 mi)
Lake Superior, Marquette, MI (104.1 mi)
Middle Branch Escanaba River, , MI (106.3 mi)
Middle Branch Escanaba River, Humboldt, MI (106.6 mi)
Lake Superior, Lake Superior, MI (107.4 mi)

Weather Near Isle Royale, Michigan

Current Weather

27°F
Light snow
Light snow
21°F
27.4°F
80%
NE 5.1 mph
7.7 mph
16.5°F
22°F
0 in
100%
9 mi
1022 mbar
0

Five Day Weather Forecast

Light snow
Tue
H: 32°F
L: 27°F
Light freezing rain
Wed
H: 27°F
L: 14°F
Moderate or heavy snow showers
Thu
H: 28°F
L: 25°F
Moderate or heavy snow showers
Fri
H: 29°F
L: 21°F
Blizzard
Sat
H: 28°F
L: 23°F

Air Quality

AQI: 1 - Good
PM2.5: 1.45 μg/m3
PM10: 1.95 μg/m3
Carbon Monoxide: 155.85 μg/m3
Nitrogen Dioxide: 0.95 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 91 μg/m3

Astronomical

Sunrise: 7:31 AM
Sun Transit: 12:00 AM
Sunset: 8:20 PM
Daylight: 12 hrs 49 mins
Moonrise: 7:08 PM
Moon Transit: 12:31 AM
Moonset: 6:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 AM
12:41 AM - 3:11 PM

Minor Periods

6:38 PM - 8:08 PM
6:22 AM - 7:52 AM

Action Rating: 4 out of 5

Winter Storm Watch issued March 31 at 3:43PM EDT until April 3 at 2:00AM EDT by NWS Marquette MI

Effective: Tue March 31, 2026, 3:43 PM
Expires: Wed April 1, 2026, 8:00 AM

* WHAT...Heavy mixed precipitation possible. Total snow and sleet accumulations between 3 and 6 inches, except up to 8 inches in the Keweenaw. Ice accumulations up to two tenths of an inch possible. Winds could gust as high as 40 mph in the Keweenaw. * WHERE...Portions of central Upper and western Upper Michigan. * WHEN...From late Wednesday night through late Thursday night. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the Thursday morning and evening commutes.

Monitor the latest forecasts for updates on this situation.
Tuesday, March 31, 2026

Weather Forecast

Light snow
31.5°F
26.8°F
29.5°F
84%
0.11 in
62%
52%
17 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 2.75 μg/m3
PM10: 3.69 μg/m3
Carbon Monoxide: 176.33 μg/m3
Nitrogen Dioxide: 1.01 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 95.76 μg/m3

Astronomical

Sunrise: 7:31 AM
Sun Transit: 12:00 AM
Sunset: 8:20 PM
Daylight: 12 hrs 49 mins
Moonrise: 7:08 PM
Moon Transit: 12:31 AM
Moonset: 6:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 AM
12:41 AM - 3:11 PM

Minor Periods

6:38 PM - 8:08 PM
6:22 AM - 7:52 AM

Action Rating: 4 out of 5

Wednesday, April 1, 2026

Weather Forecast

Light freezing rain
26.8°F
13.6°F
23.4°F
76%
0.01 in
68%
3%
13 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 1.49 μg/m3
PM10: 1.95 μg/m3
Carbon Monoxide: 152.01 μg/m3
Nitrogen Dioxide: 0.93 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 93.92 μg/m3

Astronomical

Sunrise: 7:29 AM
Sun Transit: 12:00 AM
Sunset: 8:22 PM
Daylight: 12 hrs 53 mins
Moonrise: 8:19 PM
Moon Transit: 1:14 AM
Moonset: 7:06 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:44 AM - 3:14 AM
1:23 PM - 3:53 PM

Minor Periods

7:49 PM - 9:19 PM
6:36 AM - 8:06 AM

Action Rating: 3 out of 5

Thursday, April 2, 2026

Weather Forecast

Moderate or heavy snow showers
28.3°F
24.8°F
27.2°F
88%
2.9 in
88%
46%
26.8 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 1.64 μg/m3
PM10: 2.09 μg/m3
Carbon Monoxide: 147.69 μg/m3
Nitrogen Dioxide: 1 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 99.52 μg/m3

Astronomical

Sunrise: 7:27 AM
Sun Transit: 12:00 AM
Sunset: 8:23 PM
Daylight: 12 hrs 56 mins
Moonrise: 9:30 PM
Moon Transit: 1:56 AM
Moonset: 7:21 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

1:26 AM - 3:56 AM
2:06 PM - 4:36 PM

Minor Periods

9:00 PM - 10:30 PM
6:51 AM - 8:21 AM

Action Rating: 3 out of 5

Friday, April 3, 2026

Weather Forecast

Moderate or heavy snow showers
29.3°F
20.8°F
26.2°F
83%
0.72 in
77%
29%
22.8 mph
1.3


Air Quality

AQI: 1 - Good
PM2.5: 1.79 μg/m3
PM10: 2.22 μg/m3
Carbon Monoxide: 141.77 μg/m3
Nitrogen Dioxide: 1.01 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 100.24 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 12:00 AM
Sunset: 8:25 PM
Daylight: 13 hrs mins
Moonrise: 10:42 PM
Moon Transit: 2:39 AM
Moonset: 7:37 AM
Moon Phase: Full
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

2:09 AM - 4:39 AM
2:50 PM - 5:20 PM

Minor Periods

10:12 PM - 11:42 PM
7:07 AM - 8:37 AM

Action Rating: 4 out of 5

Saturday, April 4, 2026

Weather Forecast

Blizzard
27.7°F
23.4°F
26.6°F
94%
1.37 in
72%
60%
26.2 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 1.86 μg/m3
PM10: 2.3 μg/m3
Carbon Monoxide: 149.76 μg/m3
Nitrogen Dioxide: 0.95 μg/m3
Sulphur Dioxide: 1.21 μg/m3
Ozone: 97.08 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 1:53 PM
Sunset: 8:26 PM
Daylight: 13 hrs 3 mins
Moonrise: 11:53 PM
Moon Transit: 3:23 AM
Moonset: 7:57 AM
Moon Phase: Full
Moon Illumination: 91.3%

Best Times for Fishing or Hunting

Major Periods

2:53 AM - 5:23 AM
3:35 PM - 6:05 PM

Minor Periods

12:00 AM - 12:00 AM
7:27 AM - 8:57 AM

Action Rating: 4 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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