Water Temperature of Lake Superior Near Duluth, MN

Current Water Temperature

51.3°F

Measurement Time: Tuesday, October 13, 2026, 9:30 AM CDT

Temperature Locations

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Local Points of Interest

McQuade Harbor; Lakewood, MN

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Lake Superior

Station Name: McQuade Harbor Nearshore, MN
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 587 feet

Nearest Address:
Offshore
Duluth, MN 55804
St. Louis County

GPS Coordinates: 46.86, -91.93

Nearby Water Temperatures

Lake Superior, Duluth, MN (1.4 mi)
Lake Superior, Duluth, MN (5.7 mi)
Knife River, Knife River, MN (8.8 mi)
Duluth Harbor, Duluth, MN (9.6 mi)
Lake Superior, Superior, WI (11.5 mi)
Lake Superior, Two Harbors, MN (16.6 mi)
Bois Brule River, Maple, WI (18.8 mi)
St. Louis River, Scanlon, MN (25.5 mi)
Saint Louis River, Hoyt Lakes, MN (43.2 mi)
Baptism River, Illgen City, MN (47.6 mi)
Partrige River, Babbitt, MN (52.5 mi)
Chequamegon Bay, Ashland, WI (52.7 mi)
Namekagon River, Cable, WI (55.5 mi)
Dunka River, Babbitt, MN (55.8 mi)
St. Croix River, Danbury, WI (56.2 mi)

Weather Near Duluth, Minnesota

Current Weather

52.2°F
Light rain
Conditions: Light rain
Humidity: 96%
Feels Like: 48°F
Wind: NNE 9.6 mph
Wind Gusts: 19.6 mph
Pressure: 29.69 in
Precipitation: 0.09 in
Cloud Cover: 100%
Visibility: 5 mi
UV Index: 0

Weather Forecast

Light drizzle
Tue
H: 57°F
L: 51°F
Light drizzle
Wed
H: 52°F
L: 49°F
Overcast
Thu
H: 50°F
L: 39°F

Air Quality

AQI: 1 - Good
PM2.5: 0.5 μg/m3
PM10: 0.5 μg/m3
Carbon Monoxide: 159 μg/m3
Nitrogen Dioxide: 2.1 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 69 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 11:51 AM
Sunset: 4:49 PM
Daylight: 9 hrs 55 mins
Moonrise: 12:32 AM
Moon Transit: 7:34 AM
Moonset: 2:23 PM
Moon Phase: Last Quarter
Moon Illumination: 28.0%

Best Times for Fishing or Hunting

Major Periods

7:04 AM - 9:34 AM
7:12 PM - 9:42 PM

Minor Periods

1:53 PM - 3:23 PM
12:02 AM - 1:32 AM

Action Rating: 3 out of 5

Small Craft Advisory issued November 3 at 11:45AM CST until November 4 at 10:00AM CST by NWS Duluth MN

Effective: Tue November 3, 2026, 11:45 AM
Expires: Tue November 3, 2026, 11:45 PM

* WHAT...Northeast winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 4 ft expected. * 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...From 6 PM this evening to 10 AM CST Wednesday. * IMPACTS...Conditions will be hazardous to small craft.


Dense Fog Advisory issued November 3 at 5:25PM EST until November 4 at 10:00AM EST by NWS Marquette MI

Effective: Tue November 3, 2026, 4:25 PM
Expires: Wed November 4, 2026, 4:30 AM

* WHAT...Dense fog will reduce visibility to less than one nautical mile. * WHERE...Lake Superior west of a line from Saxon Harbor WI to Grand Portage MN beyond 5NM, Saxon Harbor WI to Black River MI and Black River to Ontonagon MI. * WHEN...Until 10 AM EST /9 AM CST/ Wednesday. * IMPACTS...Low visibility will make navigation difficult.
Tuesday, November 3, 2026

Weather Forecast

Conditions: Light drizzle
Average Temperature: 54.3°F
Average Humidity: 95%
Chance of Rain: 94%
Wind: 12.1 mph
UV Index: 0.3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 11:51 AM
Sunset: 4:49 PM
Daylight: 9 hrs 55 mins
Moonrise: 12:32 AM
Moon Transit: 7:34 AM
Moonset: 2:23 PM
Moon Phase: Last Quarter
Moon Illumination: 28.0%

Best Times for Fishing or Hunting

Major Periods

7:04 AM - 9:34 AM
7:12 PM - 9:42 PM

Minor Periods

1:53 PM - 3:23 PM
12:02 AM - 1:32 AM

Action Rating: 3 out of 5

Wednesday, November 4, 2026

Weather Forecast

Conditions: Light drizzle
Average Temperature: 50.8°F
Average Humidity: 95%
Chance of Rain: 94%
Wind: 17.7 mph
UV Index: 0.4

Astronomical

Sunrise: 6:55 AM
Sun Transit: 11:51 AM
Sunset: 4:47 PM
Daylight: 9 hrs 53 mins
Moonrise: 1:46 AM
Moon Transit: 8:20 AM
Moonset: 2:40 PM
Moon Phase: Last Quarter
Moon Illumination: 18.5%

Best Times for Fishing or Hunting

Major Periods

7:50 AM - 10:20 AM
7:56 PM - 10:26 PM

Minor Periods

2:10 PM - 3:40 PM
1:16 AM - 2:46 AM

Action Rating: 2 out of 5

Thursday, November 5, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 44°F
Average Humidity: 74%
Chance of Rain: 79%
Wind: 16.8 mph
UV Index: 1.3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 11:51 AM
Sunset: 4:46 PM
Daylight: 9 hrs 50 mins
Moonrise: 2:59 AM
Moon Transit: 9:04 AM
Moonset: 2:57 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.6%

Best Times for Fishing or Hunting

Major Periods

8:34 AM - 11:04 AM
8:40 PM - 11:10 PM

Minor Periods

2:27 PM - 3:57 PM
2:29 AM - 3:59 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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