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

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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 / 179 meters

Nearest Address:
Offshore
Isle Royale, MI

GPS Coordinates: 48.034, -87.73

Nearby Water Temperatures

Lake Superior, Terrace Bay Township, ON (80.6 km)
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 (76.0 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

54.5°F
Cloudy
Conditions: Cloudy
Humidity: 95%
Feels Like: 51.8°F
Wind: WSW 4.7 mph
Wind Gusts: 9.9 mph
Pressure: 30.33 in
Precipitation: 0 in
Cloud Cover: 72%
Visibility: 6 mi
UV Index: 0.3

Five Day Weather Forecast

Cloudy
Fri
H: 66°F
L: 51°F
Partly Cloudy
Sat
H: 67°F
L: 56°F
Partly Cloudy
Sun
H: 66°F
L: 59°F
Sunny
Mon
H: 66°F
L: 59°F
Sunny
Tue
H: 69°F
L: 58°F

Air Quality

AQI: 1 - Good
PM2.5: 72.52 μg/m3
PM10: 73.26 μg/m3
Carbon Monoxide: 381.1 μg/m3
Nitrogen Dioxide: 0.93 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:57 PM
Sunset: 9:26 PM
Daylight: 14 hrs 58 mins
Moonrise: 3:18 PM
Moon Transit: 7:52 PM
Moonset: 12:58 AM
Moon Phase: First Quarter
Moon Illumination: 47.9%

Best Times for Fishing or Hunting

Major Periods

7:19 AM - 9:49 AM
7:22 PM - 9:52 PM

Minor Periods

2:48 PM - 4:18 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Air Quality Alert issued July 31 at 12:32PM EDT by NWS Marquette MI

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Thu July 31, 2025, 12:32 PM
Expires: Sun August 3, 2025, 12:00 AM

The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has issued an Air Quality Advisory for elevated levels of fine particulate (PM2.5) across the state of Michigan. Pollutants are expected to be in the Unhealthy for Sensitive Groups (USG, Orange AQI) range from Thursday until Saturday with some locations reaching the Unhealthy (Red AQI) range. The Air Quality Advisory includes all Michigan counties. Smoke from Canadian wildfires remains over the state Thursday, with PM2.5 concentrations ranging from USG to Unhealthy. Some locations, mostly in the Lower Peninsula, may experience improvements in air quality from late Thursday into Friday; however, that is expected to be short-lived as additional plumes drop into the region. High pressure settling overhead will limit dispersion and keep smoke at the surface through the end of the week. This sustains the threat of increased PM2.5 and readings in the USG range will continue Thursday through Saturday, with some locations reaching as high as the Unhealthy range. It is recommended that, when possible, you avoid strenuous outdoor activities, especially those with heart disease and respiratory diseases like asthma. Monitor for symptoms such as wheezing, coughing, chest tightness, dizziness, or burning in nose, throat, and eyes. Reduce or eliminate activities that contribute to air pollution, such as: - outdoor burning; - use of residential wood burning devices. Tips for households: - Keep windows closed overnight to prevent smoke from getting indoors and, if possible, run central air conditioning with MERV-13 or higher rated filters. For up-to-date air quality data for Michigan visit the MiAir site: https://air-egle.hub.arcgis.com/ For up-to-date air quality data nationally visit EPAs Air Now site: https://www.airnow.gov/ For further health information, please see MDHHS Wildfire Smoke and Your Health site: https://www.michigan.gov/mdhhs/safety-injury-prev/environmental- health/your-health-and-wildfire-smoke


Air Quality Alert issued July 31 at 12:32PM EDT by NWS Marquette MI

Non-Weather Emergency Message. Not sent to IPAWS.

Effective: Thu July 31, 2025, 12:32 PM
Expires: Sun August 3, 2025, 12:00 AM

The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has issued an Air Quality Advisory for elevated levels of fine particulate (PM2.5) across the state of Michigan. Pollutants are expected to be in the Unhealthy for Sensitive Groups (USG, Orange AQI) range from Thursday until Saturday with some locations reaching the Unhealthy (Red AQI) range. The Air Quality Advisory includes all Michigan counties. Smoke from Canadian wildfires remains over the state Thursday, with PM2.5 concentrations ranging from USG to Unhealthy. Some locations, mostly in the Lower Peninsula, may experience improvements in air quality from late Thursday into Friday; however, that is expected to be short-lived as additional plumes drop into the region. High pressure settling overhead will limit dispersion and keep smoke at the surface through the end of the week. This sustains the threat of increased PM2.5 and readings in the USG range will continue Thursday through Saturday, with some locations reaching as high as the Unhealthy range. It is recommended that, when possible, you avoid strenuous outdoor activities, especially those with heart disease and respiratory diseases like asthma. Monitor for symptoms such as wheezing, coughing, chest tightness, dizziness, or burning in nose, throat, and eyes. Reduce or eliminate activities that contribute to air pollution, such as: - outdoor burning; - use of residential wood burning devices. Tips for households: - Keep windows closed overnight to prevent smoke from getting indoors and, if possible, run central air conditioning with MERV-13 or higher rated filters. For up-to-date air quality data for Michigan visit the MiAir site: https://air-egle.hub.arcgis.com/ For up-to-date air quality data nationally visit EPAs Air Now site: https://www.airnow.gov/ For further health information, please see MDHHS Wildfire Smoke and Your Health site: https://www.michigan.gov/mdhhs/safety-injury-prev/environmental- health/your-health-and-wildfire-smoke


Friday, August 1, 2025

Weather Forecast

Conditions: Cloudy
Average Temperature: 58.7°F
Average Humidity: 82%
Chance of Rain: 0%
Wind: 22.4 mph
UV Index: 1.5

Air Quality

AQI: 4 - Unhealthy
PM2.5: 72.86 μg/m3
PM10: 73.41 μg/m3
Carbon Monoxide: 470.12 μg/m3
Nitrogen Dioxide: 1.21 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 81.72 μg/m3

Astronomical

Sunrise: 6:28 AM
Sun Transit: 1:57 PM
Sunset: 9:26 PM
Daylight: 14 hrs 58 mins
Moonrise: 3:18 PM
Moon Transit: 7:52 PM
Moonset: 12:58 AM
Moon Phase: First Quarter
Moon Illumination: 47.9%

Best Times for Fishing or Hunting

Major Periods

7:19 AM - 9:49 AM
7:22 PM - 9:52 PM

Minor Periods

2:48 PM - 4:18 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Saturday, August 2, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 61.8°F
Average Humidity: 79%
Chance of Rain: 0%
Wind: 18.8 mph
UV Index: 1.6

Air Quality

AQI: 3 - Unhealthy for Sensitive Groups
PM2.5: 54.75 μg/m3
PM10: 55.23 μg/m3
Carbon Monoxide: 430.98 μg/m3
Nitrogen Dioxide: 1.64 μg/m3
Sulphur Dioxide: 0.82 μg/m3
Ozone: 89.36 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 1:57 PM
Sunset: 9:24 PM
Daylight: 14 hrs 55 mins
Moonrise: 4:29 PM
Moon Transit: 8:38 PM
Moonset: 12:18 AM
Moon Phase: First Quarter
Moon Illumination: 59.1%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
8:08 PM - 10:38 PM

Minor Periods

3:59 PM - 5:29 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, August 3, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 62.5°F
Average Humidity: 79%
Chance of Rain: 0%
Wind: 16.8 mph
UV Index: 1.5

Air Quality

AQI: 2 - Moderate
PM2.5: 35.62 μg/m3
PM10: 35.91 μg/m3
Carbon Monoxide: 412.55 μg/m3
Nitrogen Dioxide: 1.52 μg/m3
Sulphur Dioxide: 0.91 μg/m3
Ozone: 100.8 μg/m3

Astronomical

Sunrise: 6:30 AM
Sun Transit: 1:57 PM
Sunset: 9:23 PM
Daylight: 14 hrs 53 mins
Moonrise: 5:37 PM
Moon Transit: 9:28 PM
Moonset: 12:42 AM
Moon Phase: First Quarter
Moon Illumination: 70.0%

Best Times for Fishing or Hunting

Major Periods

8:51 AM - 11:21 AM
8:58 PM - 11:28 PM

Minor Periods

5:07 PM - 6:37 PM
12:12 AM - 1:42 AM

Action Rating: 3 out of 5

Monday, August 4, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 61.8°F
Average Humidity: 83%
Chance of Rain: 0%
Wind: 7.6 mph
UV Index: 0.6

Air Quality

AQI: 2 - Moderate
PM2.5: 17.68 μg/m3
PM10: 18.03 μg/m3
Carbon Monoxide: 345.28 μg/m3
Nitrogen Dioxide: 0.98 μg/m3
Sulphur Dioxide: 0.44 μg/m3
Ozone: 94 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:57 PM
Sunset: 9:21 PM
Daylight: 14 hrs 50 mins
Moonrise: 6:41 PM
Moon Transit: 10:20 PM
Moonset: 1:15 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 79.8%

Best Times for Fishing or Hunting

Major Periods

9:43 AM - 12:13 AM
12:00 AM - 12:00 AM

Minor Periods

6:11 PM - 7:41 PM
12:45 AM - 2:15 AM

Action Rating: 3 out of 5

Tuesday, August 5, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 62.3°F
Average Humidity: 80%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 15.27 μg/m3
PM10: 15.58 μg/m3
Carbon Monoxide: 447.98 μg/m3
Nitrogen Dioxide: 0.26 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 81.62 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:56 PM
Sunset: 9:20 PM
Daylight: 14 hrs 47 mins
Moonrise: 7:36 PM
Moon Transit: 11:15 PM
Moonset: 1:59 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%

Best Times for Fishing or Hunting

Major Periods

10:36 AM - 1:06 PM
12:00 AM - 12:00 AM

Minor Periods

7:06 PM - 8:36 PM
1:29 AM - 2:59 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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