Water Temperature of Lake Superior Near Copper Harbor, MI
Current Water Temperature
Measurement Time: Saturday, August 2, 2025, 11:30 PM EDT
Temperature Locations
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Local Points of Interest
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Station Name: EAST SUPERIOR -70 NM NE Marquette, MI
Station Type: Other
Data Source: National Data Buoy Center
Elevation Above Sea Level: 0 feet / 0 meters
Nearest Address:
Offshore
Copper Harbor, MI 49918
Keweenaw County
GPS Coordinates: 47.585, -86.585
Nearby Water Temperatures
Lake Superior, Isle Royale, MI (61.5 mi)Lake Superior, Terrace Bay Township, ON (109.6 km)
Miners River, Munising, MI (75.8 mi)
Lake Superior, Marquette, MI (80.9 mi)
East Branch Salmon Trout River, Powell, MI (81.2 mi)
Salmon Trout River, Champion, MI (82.2 mi)
Keweenaw Bay, Jacobsville, MI (95.0 mi)
Middle Branch Escanaba River, Humboldt, MI (96.6 mi)
Middle Branch Escanaba River, , MI (96.9 mi)
Lake Superior, Calumet, MI (97.0 mi)
Pilgrim River, Houghton, MI (98.3 mi)
Falls River, L'Anse, MI (105.2 mi)
Sturgeon River, Pelkie, MI (114.2 mi)
Seul Choix Bay, Port Inland, MI (116.6 mi)
Escanaba River, Cornell, MI (119.6 mi)
Weather Near Copper Harbor, Michigan
Current Weather

Humidity: 59%
Feels Like: 69.1°F
Wind: WSW 12.3 mph
Wind Gusts: 25.8 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0
Five Day Weather Forecast

Sun
H: 64°F
L: 58°F

Mon
H: 64°F
L: 57°F

Tue
H: 60°F
L: 55°F

Wed
H: 69°F
L: 55°F

Thu
H: 64°F
L: 62°F
Air Quality
Nitrogen Dioxide: 1.01 μg/m3
Sulphur Dioxide: 1.01 μg/m3
Ozone: 116 μg/m3
Astronomical
Sun Transit: 1:52 PM
Sunset: 9:17 PM
Daylight: 14 hrs 50 mins
Moon Transit: 9:23 PM
Moonset: 12:40 AM
Moon Phase: First Quarter
Moon Illumination: 70.0%
Best Times for Fishing or Hunting
Major Periods
8:56 AM - 11:26 AM8:53 PM - 11:23 PM
Minor Periods
5:00 PM - 6:30 PM12:10 AM - 1:40 AM
Action Rating: 3 out of 5
Air Quality Alert issued August 2 at 10:28AM EDT by NWS Marquette MI
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Sat August 2, 2025, 10:28 AM
Expires: Mon August 4, 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. Canadian wildfire smoke will re-enter Michigan, statewide, Saturday afternoon and persist through at least Sunday. A High-pressure system sitting in the Midwest will continue to funnel wildfire smoke into the state and cause little to no dispersion due to stagnant conditions. 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
Air Quality Alert issued August 2 at 10:28AM EDT by NWS Marquette MI
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Sat August 2, 2025, 10:28 AM
Expires: Mon August 4, 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. Canadian wildfire smoke will re-enter Michigan, statewide, Saturday afternoon and persist through at least Sunday. A High-pressure system sitting in the Midwest will continue to funnel wildfire smoke into the state and cause little to no dispersion due to stagnant conditions. 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 August 2 at 10:28AM EDT by NWS Marquette MI
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Sat August 2, 2025, 10:28 AM
Expires: Mon August 4, 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. Canadian wildfire smoke will re-enter Michigan, statewide, Saturday afternoon and persist through at least Sunday. A High-pressure system sitting in the Midwest will continue to funnel wildfire smoke into the state and cause little to no dispersion due to stagnant conditions. 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
Weather Forecast
Average Temperature: 62.4°F
Average Humidity: 75%
Wind: 16.6 mph
UV Index: 1.7
Air Quality
Nitrogen Dioxide: 1.58 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 121.36 μg/m3
Astronomical
Sun Transit: 1:52 PM
Sunset: 9:17 PM
Daylight: 14 hrs 50 mins
Moon Transit: 9:23 PM
Moonset: 12:40 AM
Moon Phase: First Quarter
Moon Illumination: 70.0%
Best Times for Fishing or Hunting
Major Periods
8:56 AM - 11:26 AM8:53 PM - 11:23 PM
Minor Periods
5:00 PM - 6:30 PM12:10 AM - 1:40 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 60.8°F
Average Humidity: 85%
Wind: 8.9 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 1.63 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 101.92 μg/m3
Astronomical
Sun Transit: 1:52 PM
Sunset: 9:16 PM
Daylight: 14 hrs 47 mins
Moon Transit: 10:16 PM
Moonset: 1:13 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 79.8%
Best Times for Fishing or Hunting
Major Periods
9:47 AM - 12:17 AM12:00 AM - 12:00 AM
Minor Periods
6:04 PM - 7:34 PM12:43 AM - 2:13 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 57.9°F
Average Humidity: 93%
Wind: 14.8 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 1.18 μg/m3
Sulphur Dioxide: 0.11 μg/m3
Ozone: 70.12 μg/m3
Astronomical
Sun Transit: 1:52 PM
Sunset: 9:14 PM
Daylight: 14 hrs 44 mins
Moon Transit: 11:10 PM
Moonset: 1:57 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.0%
Best Times for Fishing or Hunting
Major Periods
10:41 AM - 1:11 PM12:00 AM - 12:00 AM
Minor Periods
6:59 PM - 8:29 PM1:27 AM - 2:57 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 62.9°F
Average Humidity: 82%
Wind: 19.2 mph
UV Index: 5
Air Quality
Nitrogen Dioxide: 1.32 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 94.31 μg/m3
Astronomical
Sun Transit: 1:52 PM
Sunset: 9:13 PM
Daylight: 14 hrs 42 mins
Moon Transit: 12:00 AM
Moonset: 2:54 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 94.4%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM11:36 AM - 2:06 PM
Minor Periods
7:44 PM - 9:14 PM2:24 AM - 3:54 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 63.7°F
Average Humidity: 95%
Wind: 11.9 mph
UV Index: 4
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 1:52 PM
Sunset: 9:11 PM
Daylight: 14 hrs 39 mins
Moon Transit: 12:05 AM
Moonset: 4:02 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.4%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM12:30 AM - 3:00 PM
Minor Periods
8:18 PM - 9:48 PM3:32 AM - 5:02 AM
Action Rating: 2 out of 5