Water Temperature of Lake Superior Near Duluth, MN
Current Water Temperature
Measurement Time: Saturday, May 31, 2025, 10:10 AM CDT
Temperature Locations
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Station Name: Western Lake Superior
Station Type: Buoy
Data Source: National Data Buoy Center
Elevation Above Sea Level: 587 feet / 179 meters
Nearest Address:
Offshore
Duluth, MN 55804
St. Louis County
GPS Coordinates: 46.814, -91.829
Nearby Water Temperatures
Lake Superior, Duluth, MN (5.7 mi)Lake Superior, Duluth, MN (7.0 mi)
Knife River, Knife River, MN (9.3 mi)
Duluth Harbor, Duluth, MN (12.7 mi)
Lake Superior, Superior, WI (12.8 mi)
Bois Brule River, Maple, WI (13.1 mi)
Lake Superior, Two Harbors, MN (16.1 mi)
St. Louis River, Scanlon, MN (28.9 mi)
Baptism River, Illgen City, MN (46.7 mi)
Saint Louis River, Hoyt Lakes, MN (47.1 mi)
Chequamegon Bay, Ashland, WI (47.2 mi)
Namekagon River, Cable, WI (50.4 mi)
St. Croix River, Danbury, WI (54.7 mi)
Partrige River, Babbitt, MN (55.8 mi)
Bad River, Ashland, WI (58.3 mi)
Weather Near Duluth, Minnesota
Current Weather

Humidity: 71%
Feels Like: 49.7°F
Wind: E 6.7 mph
Wind Gusts: 7.7 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 5.9
Five Day Weather Forecast

Sat
H: 60°F
L: 46°F

Sun
H: 71°F
L: 47°F

Mon
H: 83°F
L: 57°F

Tue
H: 68°F
L: 50°F

Wed
H: 72°F
L: 50°F
Air Quality
Nitrogen Dioxide: 0.93 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 93 μg/m3
Astronomical
Sun Transit: 1:05 PM
Sunset: 8:54 PM
Daylight: 15 hrs 36 mins
Moon Transit: 5:41 PM
Moonset: 12:51 AM
Moon Phase: Waxing Crescent
Moon Illumination: 17.4%
Best Times for Fishing or Hunting
Major Periods
4:30 AM - 7:00 AM5:11 PM - 7:41 PM
Minor Periods
9:20 AM - 10:50 AM12:21 AM - 1:51 AM
Action Rating: 2 out of 5
Air Quality Alert issued May 30 at 10:38AM CDT by NWS Duluth MN
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Fri May 30, 2025, 10:38 AM
Expires: Mon June 2, 2025, 6:00 PM
* WHAT...The Minnesota Pollution Control Agency has issued an Air Quality Alert for fine particles pollution. The Air Quality Index (AQI) is expected to reach the Red or Unhealthy category. * WHERE...All of Minnesota. * WHEN...Until 6 PM CDT Monday. * IMPACTS...Some members of the general public may experience health effects. Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older adults, may experience health effects. * ADDITIONAL DETAILS...A cold front will continue to drag smoke from large wildfires in Manitoba and Saskatchewan southward into Minnesota. The highest concentration of smoke is expected through Saturday morning and afternoon. Air quality is expected to improve Sunday before additional smoke arrives on Monday.
Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older adults, should avoid prolonged or heavy exertion. The general public should limit prolonged or heavy exertion. Reduce or eliminate activities that contribute to air pollution, such as outdoor burning, and use of residential wood burning devices. Reduce vehicle trips and vehicle idling as much as possible. Keep windows closed overnight to prevent smoke from getting indoors.
Air Quality Alert issued May 30 at 10:38AM CDT by NWS Duluth MN
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Fri May 30, 2025, 10:38 AM
Expires: Mon June 2, 2025, 6:00 PM
* WHAT...The Minnesota Pollution Control Agency has issued an Air Quality Alert for fine particles pollution. The Air Quality Index (AQI) is expected to reach the Red or Unhealthy category. * WHERE...All of Minnesota. * WHEN...Until 6 PM CDT Monday. * IMPACTS...Some members of the general public may experience health effects. Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older adults, may experience health effects. * ADDITIONAL DETAILS...A cold front will continue to drag smoke from large wildfires in Manitoba and Saskatchewan southward into Minnesota. The highest concentration of smoke is expected through Saturday morning and afternoon. Air quality is expected to improve Sunday before additional smoke arrives on Monday.
Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older adults, should avoid prolonged or heavy exertion. The general public should limit prolonged or heavy exertion. Reduce or eliminate activities that contribute to air pollution, such as outdoor burning, and use of residential wood burning devices. Reduce vehicle trips and vehicle idling as much as possible. Keep windows closed overnight to prevent smoke from getting indoors.
Air Quality Alert issued May 30 at 10:38AM CDT by NWS Duluth MN
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Fri May 30, 2025, 10:38 AM
Expires: Mon June 2, 2025, 6:00 PM
* WHAT...The Minnesota Pollution Control Agency has issued an Air Quality Alert for fine particles pollution. The Air Quality Index (AQI) is expected to reach the Red or Unhealthy category. * WHERE...All of Minnesota. * WHEN...Until 6 PM CDT Monday. * IMPACTS...Some members of the general public may experience health effects. Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older adults, may experience health effects. * ADDITIONAL DETAILS...A cold front will continue to drag smoke from large wildfires in Manitoba and Saskatchewan southward into Minnesota. The highest concentration of smoke is expected through Saturday morning and afternoon. Air quality is expected to improve Sunday before additional smoke arrives on Monday.
Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older adults, should avoid prolonged or heavy exertion. The general public should limit prolonged or heavy exertion. Reduce or eliminate activities that contribute to air pollution, such as outdoor burning, and use of residential wood burning devices. Reduce vehicle trips and vehicle idling as much as possible. Keep windows closed overnight to prevent smoke from getting indoors.
Air Quality Alert issued May 30 at 10:38AM CDT by NWS Duluth MN
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Fri May 30, 2025, 10:38 AM
Expires: Mon June 2, 2025, 6:00 PM
* WHAT...The Minnesota Pollution Control Agency has issued an Air Quality Alert for fine particles pollution. The Air Quality Index (AQI) is expected to reach the Red or Unhealthy category. * WHERE...All of Minnesota. * WHEN...Until 6 PM CDT Monday. * IMPACTS...Some members of the general public may experience health effects. Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older adults, may experience health effects. * ADDITIONAL DETAILS...A cold front will continue to drag smoke from large wildfires in Manitoba and Saskatchewan southward into Minnesota. The highest concentration of smoke is expected through Saturday morning and afternoon. Air quality is expected to improve Sunday before additional smoke arrives on Monday.
Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older adults, should avoid prolonged or heavy exertion. The general public should limit prolonged or heavy exertion. Reduce or eliminate activities that contribute to air pollution, such as outdoor burning, and use of residential wood burning devices. Reduce vehicle trips and vehicle idling as much as possible. Keep windows closed overnight to prevent smoke from getting indoors.
Air Quality Alert issued May 30 at 10:38AM CDT by NWS Duluth MN
Non-Weather Emergency Message. Not sent to IPAWS.
Effective: Fri May 30, 2025, 10:38 AM
Expires: Mon June 2, 2025, 6:00 PM
* WHAT...The Minnesota Pollution Control Agency has issued an Air Quality Alert for fine particles pollution. The Air Quality Index (AQI) is expected to reach the Red or Unhealthy category. * WHERE...All of Minnesota. * WHEN...Until 6 PM CDT Monday. * IMPACTS...Some members of the general public may experience health effects. Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older adults, may experience health effects. * ADDITIONAL DETAILS...A cold front will continue to drag smoke from large wildfires in Manitoba and Saskatchewan southward into Minnesota. The highest concentration of smoke is expected through Saturday morning and afternoon. Air quality is expected to improve Sunday before additional smoke arrives on Monday.
Sensitive groups, such as people with lung disease (including asthma), heart disease, and children and older adults, should avoid prolonged or heavy exertion. The general public should limit prolonged or heavy exertion. Reduce or eliminate activities that contribute to air pollution, such as outdoor burning, and use of residential wood burning devices. Reduce vehicle trips and vehicle idling as much as possible. Keep windows closed overnight to prevent smoke from getting indoors.
Weather Forecast
Average Temperature: 53.1°F
Average Humidity: 62%
Wind: 7.8 mph
UV Index: 2.1
Air Quality
Nitrogen Dioxide: 2 μg/m3
Sulphur Dioxide: 0.27 μg/m3
Ozone: 84.28 μg/m3
Astronomical
Sun Transit: 1:05 PM
Sunset: 8:54 PM
Daylight: 15 hrs 36 mins
Moon Transit: 5:41 PM
Moonset: 12:51 AM
Moon Phase: Waxing Crescent
Moon Illumination: 17.4%
Best Times for Fishing or Hunting
Major Periods
4:30 AM - 7:00 AM5:11 PM - 7:41 PM
Minor Periods
9:20 AM - 10:50 AM12:21 AM - 1:51 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 58.7°F
Average Humidity: 59%
Wind: 7.6 mph
UV Index: 0.7
Air Quality
Nitrogen Dioxide: 2.43 μg/m3
Sulphur Dioxide: 0.41 μg/m3
Ozone: 82.32 μg/m3
Astronomical
Sun Transit: 1:05 PM
Sunset: 8:54 PM
Daylight: 15 hrs 38 mins
Moon Transit: 6:28 PM
Moonset: 1:16 AM
Moon Phase: Waxing Crescent
Moon Illumination: 26.8%
Best Times for Fishing or Hunting
Major Periods
5:20 AM - 7:50 AM5:58 PM - 8:28 PM
Minor Periods
10:36 AM - 12:06 AM12:46 AM - 2:16 AM
Action Rating: 4 out of 5
Weather Forecast
Average Temperature: 69.4°F
Average Humidity: 64%
Wind: 15 mph
UV Index: 2.1
Air Quality
Nitrogen Dioxide: 3.13 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 93.36 μg/m3
Astronomical
Sun Transit: 1:05 PM
Sunset: 8:55 PM
Daylight: 15 hrs 39 mins
Moon Transit: 7:12 PM
Moonset: 1:36 AM
Moon Phase: First Quarter
Moon Illumination: 37.3%
Best Times for Fishing or Hunting
Major Periods
6:05 AM - 8:35 AM6:42 PM - 9:12 PM
Minor Periods
11:48 AM - 1:18 PM1:06 AM - 2:36 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 55°F
Average Humidity: 84%
Wind: 11.9 mph
UV Index: 0.3
Air Quality
Nitrogen Dioxide: 3.18 μg/m3
Sulphur Dioxide: 0.96 μg/m3
Ozone: 105.72 μg/m3
Astronomical
Sun Transit: 1:05 PM
Sunset: 8:56 PM
Daylight: 15 hrs 41 mins
Moon Transit: 7:52 PM
Moonset: 1:52 AM
Moon Phase: First Quarter
Moon Illumination: 48.5%
Best Times for Fishing or Hunting
Major Periods
6:47 AM - 9:17 AM7:22 PM - 9:52 PM
Minor Periods
12:55 AM - 2:25 PM1:22 AM - 2:52 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 61.3°F
Average Humidity: 55%
Wind: 8.7 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 3.42 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 87.62 μg/m3
Astronomical
Sun Transit: 1:05 PM
Sunset: 8:57 PM
Daylight: 15 hrs 42 mins
Moon Transit: 8:32 PM
Moonset: 2:07 AM
Moon Phase: First Quarter
Moon Illumination: 59.8%
Best Times for Fishing or Hunting
Major Periods
7:27 AM - 9:57 AM8:02 PM - 10:32 PM
Minor Periods
2:02 PM - 3:32 PM1:37 AM - 3:07 AM
Action Rating: 2 out of 5