Water Temperature of Duluth Harbor in Duluth, MN
Current Water Temperature
Measurement Time: Wednesday, June 4, 2025, 6:18 PM CDT
Temperature Locations
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Local Points of Interest
Lake Superior; Park Point; Coast Guard Basin; Duluth CanalSponsored Content
Station Name: 9099064 - Duluth, MN
Station Type: Fixed
Data Source: National Data Buoy Center
Elevation Above Sea Level: 597 feet / 182 meters
Nearest Address:
870 Minnesota Ave
Duluth, MN 55802
St. Louis County
GPS Coordinates: 46.776, -92.092
Nearby Water Temperatures
Lake Superior, Superior, WI (4.0 mi)Lake Superior, Duluth, MN (8.6 mi)
Lake Superior, Duluth, MN (9.6 mi)
Lake Superior, Duluth, MN (12.7 mi)
St. Louis River, Scanlon, MN (16.3 mi)
Knife River, Knife River, MN (18.4 mi)
Bois Brule River, Maple, WI (23.7 mi)
Lake Superior, Two Harbors, MN (26.2 mi)
Saint Louis River, Hoyt Lakes, MN (48.8 mi)
St. Croix River, Danbury, WI (48.9 mi)
Namekagon River, Cable, WI (55.3 mi)
Baptism River, Illgen City, MN (57.2 mi)
Chequamegon Bay, Ashland, WI (58.8 mi)
Partrige River, Babbitt, MN (58.8 mi)
Dunka River, Babbitt, MN (62.5 mi)
Weather for Duluth, Minnesota
Current Weather

Humidity: 46%
Feels Like: 68.7°F
Wind: WNW 3.4 mph
Wind Gusts: 7 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0.1
Five Day Weather Forecast

Wed
H: 72°F
L: 49°F

Thu
H: 70°F
L: 54°F

Fri
H: 58°F
L: 51°F

Sat
H: 63°F
L: 43°F

Sun
H: 59°F
L: 43°F
Air Quality
Nitrogen Dioxide: 6.48 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 60 μg/m3
Astronomical
Sun Transit: 1:06 PM
Sunset: 8:58 PM
Daylight: 15 hrs 42 mins
Moon Transit: 8:33 PM
Moonset: 2:08 AM
Moon Phase: First Quarter
Moon Illumination: 59.8%
Best Times for Fishing or Hunting
Major Periods
7:26 AM - 9:56 AM8:03 PM - 10:33 PM
Minor Periods
2:03 PM - 3:33 PM1:38 AM - 3:08 AM
Action Rating: 2 out of 5
Special Weather Statement issued June 4 at 10:48AM CDT by NWS Duluth MN
Effective: Wed June 4, 2025, 10:48 AM
Expires: Wed June 4, 2025, 6:00 PM
Dry conditions and breezy west winds will lead to near-critical fire weather conditions for the Minnesota Arrowhead region today. West winds of 5 to 10 mph with gusts of 15 to 20 mph are forecast. Minimum relative humidity values of 20 to 30 percent are also expected, with some locations that have not experienced recent rainfall possibly seeing relative humidity values less than 20 percent. Together, these conditions could lead to the rapid spread of fires. Check burning restrictions and fire danger before burning. For more information on burning restrictions for Minnesota, see www.dnr.state.mn.us/forestry/fire/firerating_restrictions.html.
Special Weather Statement issued June 4 at 10:48AM CDT by NWS Duluth MN
Effective: Wed June 4, 2025, 10:48 AM
Expires: Wed June 4, 2025, 6:00 PM
Dry conditions and breezy west winds will lead to near-critical fire weather conditions for the Minnesota Arrowhead region today. West winds of 5 to 10 mph with gusts of 15 to 20 mph are forecast. Minimum relative humidity values of 20 to 30 percent are also expected, with some locations that have not experienced recent rainfall possibly seeing relative humidity values less than 20 percent. Together, these conditions could lead to the rapid spread of fires. Check burning restrictions and fire danger before burning. For more information on burning restrictions for Minnesota, see www.dnr.state.mn.us/forestry/fire/firerating_restrictions.html.
Weather Forecast
Average Temperature: 62.1°F
Average Humidity: 56%
Wind: 13 mph
UV Index: 1.8
Air Quality
Nitrogen Dioxide: 3.29 μg/m3
Sulphur Dioxide: 0.72 μg/m3
Ozone: 79.68 μg/m3
Astronomical
Sun Transit: 1:06 PM
Sunset: 8:58 PM
Daylight: 15 hrs 42 mins
Moon Transit: 8:33 PM
Moonset: 2:08 AM
Moon Phase: First Quarter
Moon Illumination: 59.8%
Best Times for Fishing or Hunting
Major Periods
7:26 AM - 9:56 AM8:03 PM - 10:33 PM
Minor Periods
2:03 PM - 3:33 PM1:38 AM - 3:08 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 62.3°F
Average Humidity: 60%
Wind: 7.6 mph
UV Index: 1.6
Air Quality
Nitrogen Dioxide: 4.06 μg/m3
Sulphur Dioxide: 1.52 μg/m3
Ozone: 82.76 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 8:59 PM
Daylight: 15 hrs 43 mins
Moon Transit: 9:12 PM
Moonset: 2:22 AM
Moon Phase: First Quarter
Moon Illumination: 70.6%
Best Times for Fishing or Hunting
Major Periods
8:05 AM - 10:35 AM8:42 PM - 11:12 PM
Minor Periods
3:08 PM - 4:38 PM1:52 AM - 3:22 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 56.2°F
Average Humidity: 76%
Wind: 9.4 mph
UV Index: 0.7
Air Quality
Nitrogen Dioxide: 3.97 μg/m3
Sulphur Dioxide: 0.67 μg/m3
Ozone: 81.12 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 8:59 PM
Daylight: 15 hrs 44 mins
Moon Transit: 9:53 PM
Moonset: 2:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 80.3%
Best Times for Fishing or Hunting
Major Periods
8:45 AM - 11:15 AM9:23 PM - 11:53 PM
Minor Periods
4:14 PM - 5:44 PM2:07 AM - 3:37 AM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 52.5°F
Average Humidity: 85%
Wind: 7.6 mph
UV Index: 2
Air Quality
Nitrogen Dioxide: 4.48 μg/m3
Sulphur Dioxide: 2.26 μg/m3
Ozone: 93.32 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 9:00 PM
Daylight: 15 hrs 45 mins
Moon Transit: 10:36 PM
Moonset: 2:53 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 88.5%
Best Times for Fishing or Hunting
Major Periods
9:27 AM - 11:57 AM12:00 AM - 12:00 AM
Minor Periods
5:21 PM - 6:51 PM2:23 AM - 3:53 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 51.3°F
Average Humidity: 87%
Wind: 13.6 mph
UV Index: 0.7
Air Quality
Nitrogen Dioxide: 4.4 μg/m3
Sulphur Dioxide: 1.64 μg/m3
Ozone: 96.54 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 9:01 PM
Daylight: 15 hrs 46 mins
Moon Transit: 11:21 PM
Moonset: 3:12 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 94.7%
Best Times for Fishing or Hunting
Major Periods
10:11 AM - 12:41 AM12:00 AM - 12:00 AM
Minor Periods
6:29 PM - 7:59 PM2:42 AM - 4:12 AM
Action Rating: 2 out of 5