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

18.3°F
Overcast
Overcast
5.7°F
23.6°F
62%
NE 11.6 mph
16.4 mph
12.5°F
16°F
0 in
100%
19 mi
1023 mbar
1.2

Five Day Weather Forecast

Cloudy
Tue
H: 25°F
L: 22°F
Moderate or heavy snow showers
Wed
H: 33°F
L: 18°F
Moderate or heavy snow showers
Thu
H: 28°F
L: 13°F
Heavy snow
Fri
H: 27°F
L: 16°F
Freezing fog
Sat
H: 24°F
L: 7°F

Air Quality

AQI: 1 - Good
PM2.5: 1.65 μg/m3
PM10: 2.05 μg/m3
Carbon Monoxide: 174.85 μg/m3
Nitrogen Dioxide: 0.95 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 79 μg/m3

Astronomical

Sunrise: 8:14 AM
Sun Transit: 12:00 AM
Sunset: 7:49 PM
Daylight: 11 hrs 35 mins
Moonrise: 3:17 AM
Moon Transit: 7:06 AM
Moonset: 10:53 AM
Moon Phase: Last Quarter
Moon Illumination: 47.2%

Best Times for Fishing or Hunting

Major Periods

6:36 AM - 9:06 AM
7:21 PM - 9:51 PM

Minor Periods

10:23 AM - 11:53 AM
2:47 AM - 4:17 AM

Action Rating: 3 out of 5

Winter Weather Advisory issued March 10 at 2:04AM EDT until March 11 at 2:00PM EDT by NWS Marquette MI

Effective: Tue March 10, 2026, 2:04 AM
Expires: Tue March 10, 2026, 10:15 AM

* WHAT...Snow expected. Total snow accumulations between 3 and 5 inches. * WHERE...Baraga, Keweenaw, Northern Houghton, Ontonagon, and Southern Houghton Counties. * WHEN...From 8 PM this evening to 2 PM EDT Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Wednesday morning commute.

Slow down and use caution while traveling.


Winter Weather Advisory issued March 10 at 6:40AM EDT until March 11 at 2:00PM EDT by NWS Marquette MI

Effective: Tue March 10, 2026, 6:40 AM
Expires: Tue March 10, 2026, 6:00 PM

* WHAT...Snow expected. Total snow accumulations between 3 and 5 inches. * WHERE...Baraga, Keweenaw, Northern Houghton, Ontonagon, and Southern Houghton Counties. * WHEN...From 8 PM this evening to 2 PM EDT Wednesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Wednesday morning commute.

Slow down and use caution while traveling.
Tuesday, March 10, 2026

Weather Forecast

Cloudy
25.2°F
22.1°F
24.1°F
72%
0 in
0%
3%
13.4 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 1.75 μg/m3
PM10: 2.03 μg/m3
Carbon Monoxide: 173.89 μg/m3
Nitrogen Dioxide: 1.16 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 78.32 μg/m3

Astronomical

Sunrise: 8:14 AM
Sun Transit: 12:00 AM
Sunset: 7:49 PM
Daylight: 11 hrs 35 mins
Moonrise: 3:17 AM
Moon Transit: 7:06 AM
Moonset: 10:53 AM
Moon Phase: Last Quarter
Moon Illumination: 47.2%

Best Times for Fishing or Hunting

Major Periods

6:36 AM - 9:06 AM
7:21 PM - 9:51 PM

Minor Periods

10:23 AM - 11:53 AM
2:47 AM - 4:17 AM

Action Rating: 3 out of 5

Wednesday, March 11, 2026

Weather Forecast

Moderate or heavy snow showers
33.3°F
17.8°F
25.4°F
79%
0.14 in
77%
21%
18.1 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 1.87 μg/m3
PM10: 2.36 μg/m3
Carbon Monoxide: 173.53 μg/m3
Nitrogen Dioxide: 1.12 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 86.08 μg/m3

Astronomical

Sunrise: 8:12 AM
Sun Transit: 12:00 AM
Sunset: 7:51 PM
Daylight: 11 hrs 38 mins
Moonrise: 4:18 AM
Moon Transit: 7:58 AM
Moonset: 11:37 AM
Moon Phase: Last Quarter
Moon Illumination: 36.0%

Best Times for Fishing or Hunting

Major Periods

7:28 AM - 9:58 AM
8:12 PM - 10:42 PM

Minor Periods

11:07 AM - 12:37 AM
3:48 AM - 5:18 AM

Action Rating: 3 out of 5

Thursday, March 12, 2026

Weather Forecast

Moderate or heavy snow showers
28.4°F
13.1°F
21.8°F
80%
0.07 in
69%
6%
20.1 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 2.55 μg/m3
PM10: 3.25 μg/m3
Carbon Monoxide: 167.25 μg/m3
Nitrogen Dioxide: 1.38 μg/m3
Sulphur Dioxide: 1.32 μg/m3
Ozone: 89.56 μg/m3

Astronomical

Sunrise: 8:10 AM
Sun Transit: 12:00 AM
Sunset: 7:52 PM
Daylight: 11 hrs 42 mins
Moonrise: 5:10 AM
Moon Transit: 8:50 AM
Moonset: 12:32 AM
Moon Phase: Last Quarter
Moon Illumination: 25.6%

Best Times for Fishing or Hunting

Major Periods

8:20 AM - 10:50 AM
9:04 PM - 11:34 PM

Minor Periods

12:02 AM - 1:32 PM
4:40 AM - 6:10 AM

Action Rating: 3 out of 5

Friday, March 13, 2026

Weather Forecast

Heavy snow
27.4°F
15.8°F
25.3°F
93%
0.86 in
63%
62%
26.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.93 μg/m3
PM10: 2.31 μg/m3
Carbon Monoxide: 160.93 μg/m3
Nitrogen Dioxide: 1.25 μg/m3
Sulphur Dioxide: 1.21 μg/m3
Ozone: 91.24 μg/m3

Astronomical

Sunrise: 8:08 AM
Sun Transit: 12:00 AM
Sunset: 7:54 PM
Daylight: 11 hrs 46 mins
Moonrise: 5:52 AM
Moon Transit: 9:41 AM
Moonset: 1:36 PM
Moon Phase: Waning Crescent
Moon Illumination: 16.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:11 AM - 11:41 AM

Minor Periods

1:06 PM - 2:36 PM
5:22 AM - 6:52 AM

Action Rating: 2 out of 5

Saturday, March 14, 2026

Weather Forecast

Freezing fog
24°F
7°F
13.5°F
92%
0.02 in
78%
15%
9.4 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 1.73 μg/m3
PM10: 2.15 μg/m3
Carbon Monoxide: 167.4 μg/m3
Nitrogen Dioxide: 1.18 μg/m3
Sulphur Dioxide: 1.2 μg/m3
Ozone: 89.54 μg/m3

Astronomical

Sunrise: 8:06 AM
Sun Transit: 12:00 AM
Sunset: 7:55 PM
Daylight: 11 hrs 49 mins
Moonrise: 6:24 AM
Moon Transit: 10:32 AM
Moonset: 2:48 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:02 AM - 12:32 AM

Minor Periods

2:18 PM - 3:48 PM
5:54 AM - 7:24 AM

Action Rating: 2 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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