Water Temperature of Duluth Harbor in Duluth, MN
Current Water Temperature
Measurement Time: Monday, November 24, 2025, 6:18 AM CST
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: 75%
Feels Like: 40°F
Wind: WSW 5.8 mph
Wind Gusts: 9.7 mph
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0.3
Five Day Weather Forecast

Mon
H: 53°F
L: 35°F

Tue
H: 40°F
L: 34°F

Wed
H: 33°F
L: 24°F

Thu
H: 29°F
L: 20°F

Fri
H: 26°F
L: 16°F
Air Quality
Nitrogen Dioxide: 9.15 μg/m3
Sulphur Dioxide: 6.15 μg/m3
Ozone: 41 μg/m3
Astronomical
Sun Transit: 11:55 AM
Sunset: 4:26 PM
Daylight: 9 hrs 2 mins
Moon Transit: 3:36 PM
Moonset: 7:46 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.9%
Best Times for Fishing or Hunting
Major Periods
2:23 AM - 4:53 AM3:06 PM - 5:36 PM
Minor Periods
7:16 PM - 8:46 PM11:02 AM - 12:32 AM
Action Rating: 2 out of 5
Winter Storm Watch issued November 23 at 9:54PM CST until November 27 at 12:00AM CST by NWS Duluth MN
Effective: Sun November 23, 2025, 9:54 PM
Expires: Mon November 24, 2025, 10:00 AM
* WHAT...Heavy snow possible. Total snow accumulations between 3 and 8 inches possible. Winds could gust as high as 35 mph. * WHERE...Bayfield and Douglas Counties. This includes the Tribal Lands of the Red Cliff Band. Other locations including the Apostle Islands National Lakeshore. * WHEN...From Tuesday evening through Wednesday evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. The hazardous conditions could impact the Wednesday morning and evening commutes. * ADDITIONAL DETAILS...A corridor of locally higher snowfall amounts are possible somewhere in the watch area. Blustery winds gusting up to 35 mph may result in areas of blowing and drifting snow.
Monitor the latest forecasts for updates on this situation.
Winter Storm Watch issued November 24 at 2:45AM CST until November 27 at 12:00AM CST by NWS Duluth MN
Effective: Mon November 24, 2025, 2:45 AM
Expires: Mon November 24, 2025, 2:45 PM
* WHAT...Heavy snow possible. Total snow accumulations between 5 and 10 inches except between 8 and 11 inches for northern Bayfield County possible. Winds could gust as high as 35 mph. * WHERE...Bayfield and Douglas Counties. This includes the Tribal Lands of the Red Cliff Band. Other locations including the Apostle Islands National Lakeshore. * WHEN...From Tuesday evening through Wednesday evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. The hazardous conditions could impact the Wednesday morning and evening commutes. * ADDITIONAL DETAILS...A corridor of locally higher snowfall amounts are possible somewhere in the watch area. Blustery winds gusting up to 35 mph may result in areas of blowing and drifting snow.
Monitor the latest forecasts for updates on this situation.
Winter Storm Watch issued November 23 at 9:54PM CST until November 27 at 12:00AM CST by NWS Duluth MN
Effective: Sun November 23, 2025, 9:54 PM
Expires: Mon November 24, 2025, 10:00 AM
* WHAT...Heavy snow possible. Total snow accumulations between 4 and 9 inches possible. Winds could gust as high as 35 mph. * WHERE...Carlton, St. Louis, Cook and Lake Counties. This includes the Tribal Lands of the Grand Portage Reservation, the Fond du Lac Band and the Bois Forte Band, Nett Lake and, Lake Vermilion areas. Other locations including Voyageurs National Park. The entire Boundary Waters is also included. * WHEN...From Tuesday afternoon through Wednesday evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. * ADDITIONAL DETAILS...A corridor of locally higher snowfall amounts are possible somewhere in the watch area. Blustery winds gusting up to 35 mph may result in areas of blowing and drifting snow.
Monitor the latest forecasts for updates on this situation.
Winter Storm Watch issued November 24 at 2:45AM CST until November 27 at 12:00AM CST by NWS Duluth MN
Effective: Mon November 24, 2025, 2:45 AM
Expires: Mon November 24, 2025, 2:45 PM
* WHAT...Heavy snow possible. Total snow accumulations between 5 and 10 inches possible. Winds could gust as high as 35 mph. * WHERE...Carlton, St. Louis, Cook and Lake Counties. This includes the Tribal Lands of the Grand Portage Reservation, the Fond du Lac Band and the Bois Forte Band, Lake Vermilion and, Nett Lake areas. Other locations including Voyageurs National Park. The entire Boundary Waters is also included. * WHEN...From Tuesday afternoon through Wednesday evening. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Travel could be very difficult. The hazardous conditions could impact the Tuesday evening and Wednesday morning commutes. * ADDITIONAL DETAILS...A corridor of locally higher snowfall amounts are possible somewhere in the watch area. Blustery winds gusting up to 35 mph may result in areas of blowing and drifting snow.
Monitor the latest forecasts for updates on this situation.
Weather Forecast
Average Temperature: 42.6°F
Average Humidity: 77%
Wind: 9.6 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 10.64 μg/m3
Sulphur Dioxide: 3.91 μg/m3
Ozone: 42.76 μg/m3
Astronomical
Sun Transit: 11:55 AM
Sunset: 4:26 PM
Daylight: 9 hrs 2 mins
Moon Transit: 3:36 PM
Moonset: 7:46 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.9%
Best Times for Fishing or Hunting
Major Periods
2:23 AM - 4:53 AM3:06 PM - 5:36 PM
Minor Periods
7:16 PM - 8:46 PM11:02 AM - 12:32 AM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 37.7°F
Average Humidity: 97%
Wind: 15.9 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 6.09 μg/m3
Sulphur Dioxide: 2.31 μg/m3
Ozone: 49.96 μg/m3
Astronomical
Sun Transit: 11:55 AM
Sunset: 4:25 PM
Daylight: 9 hrs mins
Moon Transit: 4:25 PM
Moonset: 8:57 PM
Moon Phase: Waxing Crescent
Moon Illumination: 25.0%
Best Times for Fishing or Hunting
Major Periods
3:14 AM - 5:44 AM3:55 PM - 6:25 PM
Minor Periods
8:27 PM - 9:57 PM11:32 AM - 1:02 PM
Action Rating: 2 out of 5
Weather Forecast
Average Temperature: 29.3°F
Average Humidity: 74%
Wind: 17.2 mph
UV Index: 0.1
Air Quality
Nitrogen Dioxide: 1.69 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 75.4 μg/m3
Astronomical
Sun Transit: 11:55 AM
Sunset: 4:25 PM
Daylight: 8 hrs 58 mins
Moon Transit: 5:13 PM
Moonset: 10:10 PM
Moon Phase: First Quarter
Moon Illumination: 35.3%
Best Times for Fishing or Hunting
Major Periods
4:02 AM - 6:32 AM4:43 PM - 7:13 PM
Minor Periods
9:40 PM - 11:10 PM11:56 AM - 1:26 PM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 23.7°F
Average Humidity: 79%
Wind: 12.8 mph
UV Index: 0.2
Air Quality
Nitrogen Dioxide: 1.89 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 71.56 μg/m3
Astronomical
Sun Transit: 11:56 AM
Sunset: 4:24 PM
Daylight: 8 hrs 56 mins
Moon Transit: 5:58 PM
Moonset: 11:23 PM
Moon Phase: First Quarter
Moon Illumination: 46.5%
Best Times for Fishing or Hunting
Major Periods
4:48 AM - 7:18 AM5:28 PM - 7:58 PM
Minor Periods
12:00 AM - 12:00 AM12:16 AM - 1:46 PM
Action Rating: 3 out of 5
Weather Forecast
Average Temperature: 20.2°F
Average Humidity: 86%
Wind: 10.3 mph
UV Index: 0
Air Quality
Nitrogen Dioxide: 2.5 μg/m3
Sulphur Dioxide: 1.53 μg/m3
Ozone: 68.15 μg/m3
Astronomical
Sun Transit: 11:56 AM
Sunset: 4:24 PM
Daylight: 8 hrs 54 mins
Moon Transit: 6:44 PM
Moonset: 12:23 AM
Moon Phase: First Quarter
Moon Illumination: 57.8%
Best Times for Fishing or Hunting
Major Periods
5:34 AM - 8:04 AM6:14 PM - 8:44 PM
Minor Periods
12:34 AM - 2:04 PM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
