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

-14.4°F
Light snow
Light snow
-43.5°F
-4.2°F
47%
NW 25.1 mph
29.1 mph
-29.9°F
-7.9°F
0 in
75%
8 mi
1021 mbar
0

Five Day Weather Forecast

Overcast
Thu
H: 4°F
L: -8°F
Cloudy
Fri
H: -5°F
L: -13°F
Partly Cloudy
Sat
H: 8°F
L: -5°F
Partly Cloudy
Sun
H: 8°F
L: 3°F
Blowing snow
Mon
H: 19°F
L: -1°F

Air Quality

AQI: 1 - Good
PM2.5: 1.15 μg/m3
PM10: 1.15 μg/m3
Carbon Monoxide: 151.85 μg/m3
Nitrogen Dioxide: 1.05 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 8:30 AM
Sun Transit: 1:02 PM
Sunset: 5:35 PM
Daylight: 9 hrs 5 mins
Moonrise: 10:16 AM
Moon Transit: 12:00 AM
Moonset: 10:13 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:33 AM - 6:03 AM

Minor Periods

9:43 PM - 11:13 PM
9:46 AM - 11:16 AM

Action Rating: 2 out of 5

yellow warning - cold - in effect

Service Notice – November 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is tentatively set for deployment November 26, 2025. Data changes will appear in CAP following this deployment, 2) the alert name ‘extreme cold warning’ will change to ‘cold warning’, 3) two Public zone names will change in Saskatchewan, 4) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard continues, there will be changes coming to CAP and 5) 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 – novembre 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est provisoirement prévue pour un déploiement le 26 novembre 2025. Des changements aux données apparaîtront dans le PAC suite à ce déploiement, 2) le nom de l’alerte ‘avertissement de froid extrême’ changera pour ‘avertissement de froid’, 3) deux noms de zones publiques seront modifiés en Saskatchewan, 4) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique se poursuit. Des changements seront également apportés au PAC et 5) 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: Thu January 22, 2026, 11:29 AM
Expires: Fri January 23, 2026, 3:29 AM

A prolonged period of very cold wind chills is expected. What: Wind chill values of minus 40. When: Beginning tonight continuing into the weekend. Additional information: Little relief is expected during the day Friday as an Arctic airmass establishes itself over the region. Temperatures may moderate Saturday, however cold wind chills may return again Sunday morning for some regions. ### Extreme cold puts everyone at risk. Risks are greater for young children, older adults, people with chronic illnesses, people working or exercising outdoors, and those without proper shelter. Watch for cold related symptoms: shortness of breath, chest pain, muscle pain and weakness, numbness and colour change in fingers and toes. 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. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.

Cover up. Frostbite can develop within minutes on exposed skin, especially with wind chill. Keep emergency supplies in your vehicle such as extra blankets and jumper cables. If it’s too cold for you to stay outside, it’s too cold for your pet to stay outside. Watch for colour changes on fingers and toes, pain, numbness, a tingling sensation, or swelling. If present, move indoors and begin warming. Outdoor workers should take regularly scheduled breaks to warm up.


Winter Weather Advisory issued January 22 at 10:41AM EST until January 23 at 7:00PM EST by NWS Marquette MI

Effective: Thu January 22, 2026, 10:41 AM
Expires: Thu January 22, 2026, 6:45 PM

* WHAT...Lake effect snow. Additional snow accumulations between 1 and 4 inches, with higher amounts of 4 to 6 inches expected in the high terrain areas between Atlantic Mine and Rockland. Winds gusting as high as 35 mph will result in blowing snow, especially by the lakeshores and in open areas. * WHERE...Baraga, Keweenaw, Northern Houghton, Ontonagon, and Southern Houghton Counties. * WHEN...Until 7 PM EST Friday. * IMPACTS...Travel could be very difficult. Areas of blowing snow could significantly reduce visibility. The hazardous conditions could impact the Thursday evening and Friday morning commutes.

Slow down and use caution while traveling.


Thursday, January 22, 2026

Weather Forecast

Overcast
4.3°F
-8.1°F
0.7°F
80%
0 in
0%
16%
26.6 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 2.17 μg/m3
PM10: 2.31 μg/m3
Carbon Monoxide: 160.81 μg/m3
Nitrogen Dioxide: 1.46 μg/m3
Sulphur Dioxide: 1.24 μg/m3
Ozone: 69.72 μg/m3

Astronomical

Sunrise: 8:30 AM
Sun Transit: 1:02 PM
Sunset: 5:35 PM
Daylight: 9 hrs 5 mins
Moonrise: 10:16 AM
Moon Transit: 12:00 AM
Moonset: 10:13 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:33 AM - 6:03 AM

Minor Periods

9:43 PM - 11:13 PM
9:46 AM - 11:16 AM

Action Rating: 2 out of 5

Friday, January 23, 2026

Weather Forecast

Cloudy
-5.3°F
-13.4°F
-9.4°F
87%
0 in
0%
6%
25.5 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.11 μg/m3
PM10: 1.15 μg/m3
Carbon Monoxide: 151.17 μg/m3
Nitrogen Dioxide: 1.11 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 65.44 μg/m3

Astronomical

Sunrise: 8:29 AM
Sun Transit: 1:02 PM
Sunset: 5:37 PM
Daylight: 9 hrs 8 mins
Moonrise: 10:31 AM
Moon Transit: 9:54 AM
Moonset: 11:28 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

9:24 AM - 11:54 AM
9:24 AM - 11:54 AM

Minor Periods

12:00 AM - 12:00 AM
10:01 AM - 11:31 AM

Action Rating: 2 out of 5

Saturday, January 24, 2026

Weather Forecast

Partly Cloudy
8°F
-5.1°F
0.2°F
88%
0 in
0%
0%
17 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.45 μg/m3
PM10: 1.51 μg/m3
Carbon Monoxide: 150.41 μg/m3
Nitrogen Dioxide: 1.61 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 65.24 μg/m3

Astronomical

Sunrise: 8:28 AM
Sun Transit: 1:03 PM
Sunset: 5:38 PM
Daylight: 9 hrs 10 mins
Moonrise: 10:47 AM
Moon Transit: 5:38 PM
Moonset: 12:28 AM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

5:03 AM - 7:33 AM
5:08 PM - 7:38 PM

Minor Periods

10:17 AM - 11:47 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, January 25, 2026

Weather Forecast

Partly Cloudy
8.4°F
3°F
6.4°F
80%
0 in
0%
0%
15 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.28 μg/m3
PM10: 2.39 μg/m3
Carbon Monoxide: 158.88 μg/m3
Nitrogen Dioxide: 2.19 μg/m3
Sulphur Dioxide: 1.83 μg/m3
Ozone: 68.84 μg/m3

Astronomical

Sunrise: 8:27 AM
Sun Transit: 1:03 PM
Sunset: 5:40 PM
Daylight: 9 hrs 13 mins
Moonrise: 11:05 AM
Moon Transit: 6:27 PM
Moonset: 12:47 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

5:51 AM - 8:21 AM
5:57 PM - 8:27 PM

Minor Periods

10:35 AM - 12:05 AM
12:17 AM - 1:47 AM

Action Rating: 4 out of 5

Monday, January 26, 2026

Weather Forecast

Blowing snow
19°F
-0.9°F
8.3°F
83%
0.04 in
64%
39%
30.9 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.91 μg/m3
PM10: 2.99 μg/m3
Carbon Monoxide: 168.33 μg/m3
Nitrogen Dioxide: 2.8 μg/m3
Sulphur Dioxide: 3 μg/m3
Ozone: 69.38 μg/m3

Astronomical

Sunrise: 8:26 AM
Sun Transit: 1:03 PM
Sunset: 5:42 PM
Daylight: 9 hrs 15 mins
Moonrise: 11:28 AM
Moon Transit: 7:20 PM
Moonset: 2:09 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

6:42 AM - 9:12 AM
6:50 PM - 9:20 PM

Minor Periods

10:58 AM - 12:28 AM
1:39 AM - 3:09 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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