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

39.9°F
Light rain
Light rain
30.1°F
38.3°F
87%
NW 21 mph
31.9 mph
29.1°F
33.5°F
0 in
100%
19 mi
1000 mbar
0.4

Five Day Weather Forecast

Patchy rain nearby
Tue
H: 42°F
L: 38°F
Partly Cloudy
Wed
H: 40°F
L: 34°F
Partly Cloudy
Thu
H: 38°F
L: 33°F
Partly Cloudy
Fri
H: 39°F
L: 33°F
Partly Cloudy
Sat
H: 41°F
L: 33°F

Air Quality

AQI: 1 - Good
PM2.5: 1.05 μg/m3
PM10: 1.05 μg/m3
Carbon Monoxide: 142.85 μg/m3
Nitrogen Dioxide: 1.05 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 97 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 1:48 PM
Sunset: 9:00 PM
Daylight: 14 hrs 22 mins
Moonrise: 6:08 PM
Moon Transit: 11:54 PM
Moonset: 5:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.6%

Best Times for Fishing or Hunting

Major Periods

11:22 AM - 1:52 PM
12:00 AM - 12:00 AM

Minor Periods

5:38 PM - 7:08 PM
4:43 AM - 6:13 AM

Action Rating: 3 out of 5

yellow warning - rainfall - in effect

Service Notice – February 2026: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2026, changes are expected to include... 1) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard is tentatively set for Spring 2026 deployment. Data changes will appear in CAP following this deployment and 2) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – février 2026: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2026, il y aura des changements incluant... 1) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique devrait être déployée provisoirement au printemps 2026. Des changements de données apparaîtront dans le PAC à la suite de ce déploiement et 2) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Mon April 27, 2026, 3:46 PM
Expires: Tue April 28, 2026, 7:46 AM

Rain, at times heavy, expected. The frozen or nearly saturated ground has a reduced ability to absorb this rainfall. What: Rainfall amounts of 25 to 40 mm. When: Ending Tuesday morning. Additional information: Areas near Lake Nipigon may transition to snow overnight or Tuesday morning. ### Localized flooding is possible. Some roads may become impassable. For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit https://www.ontario.ca/page/floods for the latest details. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.

Don't drive through flooded roadways. Stay away from rivers, creeks and culverts.


yellow warning - rainfall - in effect

Service Notice – February 2026: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2026, changes are expected to include... 1) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard is tentatively set for Spring 2026 deployment. Data changes will appear in CAP following this deployment and 2) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – février 2026: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2026, il y aura des changements incluant... 1) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique devrait être déployée provisoirement au printemps 2026. Des changements de données apparaîtront dans le PAC à la suite de ce déploiement et 2) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Tue April 28, 2026, 8:01 AM
Expires: Tue April 28, 2026, 2:01 PM

Rain continues this morning,. The frozen or nearly saturated ground has a reduced ability to absorb this rainfall. What: Rainfall amounts of 25 to 40 mm. When: Ending this morning. Additional information: Areas near Lake Nipigon may transition to snow this morning. ### Localized flooding is possible. Some roads may become impassable. For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit https://www.ontario.ca/page/floods for the latest details. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.

Don't drive through flooded roadways. Stay away from rivers, creeks and culverts.


yellow warning - rainfall - in effect

Service Notice – February 2026: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2026, changes are expected to include... 1) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard is tentatively set for Spring 2026 deployment. Data changes will appear in CAP following this deployment and 2) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – février 2026: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2026, il y aura des changements incluant... 1) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique devrait être déployée provisoirement au printemps 2026. Des changements de données apparaîtront dans le PAC à la suite de ce déploiement et 2) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Tue April 28, 2026, 4:53 AM
Expires: Tue April 28, 2026, 2:02 PM

Rain, at times heavy, continues early this morning. The frozen or nearly saturated ground has a reduced ability to absorb this rainfall. What: Rainfall amounts of 25 to 40 mm. When: Ending this morning. Additional information: Areas near Lake Nipigon may transition to snow this morning. ### Localized flooding is possible. Some roads may become impassable. For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit https://www.ontario.ca/page/floods for the latest details. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.

Don't drive through flooded roadways. Stay away from rivers, creeks and culverts.


Tuesday, April 28, 2026

Weather Forecast

Patchy rain nearby
42.2°F
37.8°F
39.8°F
83%
0.05 in
86%
0%
21 mph
4.8


Air Quality

AQI: 1 - Good
PM2.5: 2.69 μg/m3
PM10: 2.88 μg/m3
Carbon Monoxide: 157.53 μg/m3
Nitrogen Dioxide: 1.56 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 100.2 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 1:48 PM
Sunset: 9:00 PM
Daylight: 14 hrs 22 mins
Moonrise: 6:08 PM
Moon Transit: 11:54 PM
Moonset: 5:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.6%

Best Times for Fishing or Hunting

Major Periods

11:22 AM - 1:52 PM
12:00 AM - 12:00 AM

Minor Periods

5:38 PM - 7:08 PM
4:43 AM - 6:13 AM

Action Rating: 3 out of 5

Wednesday, April 29, 2026

Weather Forecast

Partly Cloudy
39.7°F
33.7°F
36.3°F
79%
0 in
0%
0%
13.6 mph
4.7


Air Quality

AQI: 1 - Good
PM2.5: 2.35 μg/m3
PM10: 2.59 μg/m3
Carbon Monoxide: 143.93 μg/m3
Nitrogen Dioxide: 1.59 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 75.76 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:48 PM
Sunset: 9:02 PM
Daylight: 14 hrs 25 mins
Moonrise: 7:18 PM
Moon Transit: 12:00 AM
Moonset: 5:28 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:03 AM - 2:33 PM

Minor Periods

6:48 PM - 8:18 PM
4:58 AM - 6:28 AM

Action Rating: 3 out of 5

Thursday, April 30, 2026

Weather Forecast

Partly Cloudy
37.5°F
33°F
34.6°F
80%
0 in
0%
0%
9.6 mph
4.7


Air Quality

AQI: 1 - Good
PM2.5: 1.34 μg/m3
PM10: 1.39 μg/m3
Carbon Monoxide: 141.13 μg/m3
Nitrogen Dioxide: 1.32 μg/m3
Sulphur Dioxide: 1.16 μg/m3
Ozone: 75.08 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 1:48 PM
Sunset: 9:03 PM
Daylight: 14 hrs 29 mins
Moonrise: 8:29 PM
Moon Transit: 12:36 AM
Moonset: 5:44 AM
Moon Phase: Full
Moon Illumination: 99.0%

Best Times for Fishing or Hunting

Major Periods

12:06 AM - 2:36 AM
12:46 AM - 3:16 PM

Minor Periods

7:59 PM - 9:29 PM
5:14 AM - 6:44 AM

Action Rating: 5 out of 5

Friday, May 1, 2026

Weather Forecast

Partly Cloudy
38.6°F
32.5°F
35.4°F
69%
0 in
0%
0%
10.5 mph
5.5


Air Quality

AQI: 1 - Good
PM2.5: 3.01 μg/m3
PM10: 4.11 μg/m3
Carbon Monoxide: 139.64 μg/m3
Nitrogen Dioxide: 1.4 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 81.04 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:48 PM
Sunset: 9:04 PM
Daylight: 14 hrs 32 mins
Moonrise: 9:39 PM
Moon Transit: 1:19 AM
Moonset: 6:02 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:49 AM - 3:19 AM
1:31 PM - 4:01 PM

Minor Periods

9:09 PM - 10:39 PM
5:32 AM - 7:02 AM

Action Rating: 5 out of 5

Saturday, May 2, 2026

Weather Forecast

Partly Cloudy
41.1°F
32.6°F
35.7°F
76%
0 in
0%
0%
12.3 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.57 μg/m3
PM10: 6.4 μg/m3
Carbon Monoxide: 143.8 μg/m3
Nitrogen Dioxide: 1.83 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 83.08 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:47 PM
Sunset: 9:06 PM
Daylight: 14 hrs 35 mins
Moonrise: 10:49 PM
Moon Transit: 2:05 AM
Moonset: 6:24 AM
Moon Phase: Full
Moon Illumination: 98.4%

Best Times for Fishing or Hunting

Major Periods

1:35 AM - 4:05 AM
2:17 PM - 4:47 PM

Minor Periods

10:19 PM - 11:49 PM
5:54 AM - 7:24 AM

Action Rating: 3 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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