Water Temperature of Duluth Harbor in Duluth, MN

Current Water Temperature

55.6°F

Measurement Time: Wednesday, November 4, 2026, 10:18 AM CST

Temperature Locations

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Local Points of Interest

Lake Superior; Park Point; Coast Guard Basin; Duluth Canal

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Duluth Harbor

Station Name: 9099064 - Duluth, MN
Station Type: Fixed
Data Source: National Data Buoy Center

Elevation Above Sea Level: 597 feet

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 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

50°F
Mist
Conditions: Mist
Humidity: 100%
Feels Like: 44.6°F
Wind: NE 15.4 mph
Wind Gusts: 25.3 mph
Pressure: 29.49 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 1 mi
UV Index: 0.2

Weather Forecast

Light rain
Wed
H: 52°F
L: 50°F
Overcast
Thu
H: 50°F
L: 36°F
Sunny
Fri
H: 41°F
L: 34°F

Air Quality

AQI: 1 - Good
PM2.5: 0.4 μg/m3
PM10: 0.4 μg/m3
Carbon Monoxide: 160 μg/m3
Nitrogen Dioxide: 1.8 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 62 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 11:51 AM
Sunset: 4:48 PM
Daylight: 9 hrs 53 mins
Moonrise: 1:47 AM
Moon Transit: 8:21 AM
Moonset: 2:41 PM
Moon Phase: Last Quarter
Moon Illumination: 18.5%

Best Times for Fishing or Hunting

Major Periods

7:51 AM - 10:21 AM
7:56 PM - 10:26 PM

Minor Periods

2:11 PM - 3:41 PM
1:17 AM - 2:47 AM

Action Rating: 2 out of 5

Small Craft Advisory issued November 3 at 11:31PM CST until November 4 at 3:00PM CST by NWS Duluth MN

Effective: Tue November 3, 2026, 11:31 PM
Expires: Wed November 4, 2026, 3:00 PM

* WHAT...Northeast winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft. * WHERE...Grand Marais to Taconite Harbor MN, Taconite Harbor to Silver Bay Harbor MN, Silver Bay Harbor to Two Harbors MN and Two Harbors to Duluth MN. * WHEN...Until 3 PM CST Wednesday. * IMPACTS...Conditions will be hazardous to small craft.
Wednesday, November 4, 2026

Weather Forecast

Conditions: Light rain
Average Temperature: 50.5°F
Average Humidity: 95%
Chance of Rain: 94%
Wind: 22.1 mph
UV Index: 0.4

Astronomical

Sunrise: 6:55 AM
Sun Transit: 11:51 AM
Sunset: 4:48 PM
Daylight: 9 hrs 53 mins
Moonrise: 1:47 AM
Moon Transit: 8:21 AM
Moonset: 2:41 PM
Moon Phase: Last Quarter
Moon Illumination: 18.5%

Best Times for Fishing or Hunting

Major Periods

7:51 AM - 10:21 AM
7:56 PM - 10:26 PM

Minor Periods

2:11 PM - 3:41 PM
1:17 AM - 2:47 AM

Action Rating: 2 out of 5

Thursday, November 5, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 43°F
Average Humidity: 73%
Chance of Rain: 71%
Wind: 15.7 mph
UV Index: 1.4

Astronomical

Sunrise: 6:57 AM
Sun Transit: 11:51 AM
Sunset: 4:47 PM
Daylight: 9 hrs 50 mins
Moonrise: 3:00 AM
Moon Transit: 9:05 AM
Moonset: 2:57 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.6%

Best Times for Fishing or Hunting

Major Periods

8:35 AM - 11:05 AM
8:39 PM - 11:09 PM

Minor Periods

2:27 PM - 3:57 PM
2:30 AM - 4:00 AM

Action Rating: 2 out of 5

Friday, November 6, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 36.6°F
Average Humidity: 72%
Chance of Rain: 9%
Wind: 7.4 mph
UV Index: 1.8

Astronomical

Sunrise: 6:58 AM
Sun Transit: 11:52 AM
Sunset: 4:46 PM
Daylight: 9 hrs 47 mins
Moonrise: 4:12 AM
Moon Transit: 9:49 AM
Moonset: 3:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.7%

Best Times for Fishing or Hunting

Major Periods

9:23 PM - 11:53 PM
9:19 AM - 11:49 AM

Minor Periods

2:44 PM - 4:14 PM
3:42 AM - 5:12 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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