Water Temperature of Lake Superior Near Duluth, MN

Current Water Temperature

37.9°F

Measurement Time: Monday, June 8, 2026, 9:40 AM CDT

Temperature Locations

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Local Points of Interest

McQuade Harbor; Lakewood, MN

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°F
Fog
Fog
49°F
62.5°F
100%
ENE 8.5 mph
17.9 mph
62.4°F
62.6°F
0 in
100%
0 mi
1010 mbar
0

Five Day Weather Forecast

Mist
Tue
H: 73°F
L: 55°F
Heavy rain
Wed
H: 72°F
L: 55°F
Moderate rain
Thu
H: 69°F
L: 52°F
Partly Cloudy
Fri
H: 67°F
L: 52°F
Partly Cloudy
Sat
H: 67°F
L: 49°F

Air Quality

AQI: 1 - Good
PM2.5: 3.8 μg/m3
PM10: 4.1 μg/m3
Carbon Monoxide: 136 μg/m3
Nitrogen Dioxide: 3.2 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 1:07 PM
Sunset: 9:01 PM
Daylight: 15 hrs 48 mins
Moonrise: 1:43 AM
Moon Transit: 5:27 AM
Moonset: 2:34 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%

Best Times for Fishing or Hunting

Major Periods

4:57 AM - 7:27 AM
4:57 AM - 7:27 AM

Minor Periods

2:04 PM - 3:34 PM
1:13 AM - 2:43 AM

Action Rating: 4 out of 5

Dense Fog Advisory issued June 9 at 5:25PM CDT until June 10 at 7:00AM CDT by NWS Duluth MN

Effective: Tue June 9, 2026, 5:25 PM
Expires: Wed June 10, 2026, 5:30 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Minnesota, Carlton and South St. Louis, Southern Cook and Southern Lake Counties. In Wisconsin, Douglas County. This includes the Tribal Lands of the Grand Portage Reservation and the Fond du Lac Band. * WHEN...Until 7 AM CDT Wednesday. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Mainly around Lake Superior.

If driving, slow down, use your low-beam headlights and fog lights, and leave plenty of distance ahead of you.


Dense Fog Advisory issued June 9 at 5:25PM CDT until June 10 at 7:00AM CDT by NWS Duluth MN

Effective: Tue June 9, 2026, 5:25 PM
Expires: Wed June 10, 2026, 5:30 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Ashland, Bayfield, and Iron Counties. This includes the Tribal Lands of the Red Cliff Band, the northwestern area of the Lac du Flambeau Band and the Bad River Reservation. Other locations including the Apostle Islands National Lakeshore and Madeline Island. * WHEN...Until 7 AM CDT Wednesday. * IMPACTS...Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS...Mainly around Lake Superior.

If driving, slow down, use your low-beam headlights and fog lights, and leave plenty of distance ahead of you.
Tuesday, June 9, 2026

Weather Forecast

Mist
72.7°F
54.9°F
62.1°F
96%
0 in
35%
0%
9.6 mph
7.5


Air Quality

AQI: 1 - Good
PM2.5: 5.13 μg/m3
PM10: 5.38 μg/m3
Carbon Monoxide: 160.96 μg/m3
Nitrogen Dioxide: 5.56 μg/m3
Sulphur Dioxide: 0.32 μg/m3
Ozone: 68.04 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 1:07 PM
Sunset: 9:01 PM
Daylight: 15 hrs 48 mins
Moonrise: 1:43 AM
Moon Transit: 5:27 AM
Moonset: 2:34 PM
Moon Phase: Last Quarter
Moon Illumination: 21.6%

Best Times for Fishing or Hunting

Major Periods

4:57 AM - 7:27 AM
4:57 AM - 7:27 AM

Minor Periods

2:04 PM - 3:34 PM
1:13 AM - 2:43 AM

Action Rating: 4 out of 5

Wednesday, June 10, 2026

Weather Forecast

Heavy rain
71.8°F
55°F
60.9°F
96%
0.87 in
90%
0%
13.9 mph
3.5


Air Quality

AQI: 1 - Good
PM2.5: 1.64 μg/m3
PM10: 1.79 μg/m3
Carbon Monoxide: 137.75 μg/m3
Nitrogen Dioxide: 2.89 μg/m3
Sulphur Dioxide: 0.24 μg/m3
Ozone: 70.92 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 1:07 PM
Sunset: 9:01 PM
Daylight: 15 hrs 48 mins
Moonrise: 2:01 AM
Moon Transit: 8:47 AM
Moonset: 3:51 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.1%

Best Times for Fishing or Hunting

Major Periods

8:17 AM - 10:47 AM
8:26 PM - 10:56 PM

Minor Periods

3:21 PM - 4:51 PM
1:31 AM - 3:01 AM

Action Rating: 2 out of 5

Thursday, June 11, 2026

Weather Forecast

Moderate rain
68.6°F
51.8°F
58.2°F
88%
0.21 in
78%
0%
10.7 mph
6.5


Air Quality

AQI: 1 - Good
PM2.5: 2.5 μg/m3
PM10: 3.1 μg/m3
Carbon Monoxide: 128.38 μg/m3
Nitrogen Dioxide: 3.15 μg/m3
Sulphur Dioxide: 0.69 μg/m3
Ozone: 74.92 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 1:07 PM
Sunset: 9:02 PM
Daylight: 15 hrs 49 mins
Moonrise: 2:21 AM
Moon Transit: 9:38 AM
Moonset: 5:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.5%

Best Times for Fishing or Hunting

Major Periods

9:19 PM - 11:49 PM
9:08 AM - 11:38 AM

Minor Periods

4:44 PM - 6:14 PM
1:51 AM - 3:21 AM

Action Rating: 3 out of 5

Friday, June 12, 2026

Weather Forecast

Partly Cloudy
66.7°F
52.3°F
58.8°F
68%
0 in
10%
0%
15.4 mph
5.8


Air Quality

AQI: 1 - Good
PM2.5: 2 μg/m3
PM10: 2.1 μg/m3
Carbon Monoxide: 125.33 μg/m3
Nitrogen Dioxide: 2.96 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 68.5 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 1:07 PM
Sunset: 9:03 PM
Daylight: 15 hrs 50 mins
Moonrise: 2:47 AM
Moon Transit: 10:34 AM
Moonset: 6:40 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:04 AM - 12:34 AM

Minor Periods

6:10 PM - 7:40 PM
2:17 AM - 3:47 AM

Action Rating: 2 out of 5

Saturday, June 13, 2026

Weather Forecast

Partly Cloudy
66.6°F
49.3°F
57.3°F
58%
0 in
7%
0%
15 mph
6.6


Air Quality

AQI: 1 - Good
PM2.5: 1.7 μg/m3
PM10: 1.75 μg/m3
Carbon Monoxide: 128.91 μg/m3
Nitrogen Dioxide: 3.05 μg/m3
Sulphur Dioxide: 0.54 μg/m3
Ozone: 64.5 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 1:07 PM
Sunset: 9:03 PM
Daylight: 15 hrs 51 mins
Moonrise: 3:20 AM
Moon Transit: 11:35 AM
Moonset: 8:06 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:05 AM - 1:35 PM

Minor Periods

7:36 PM - 9:06 PM
2:50 AM - 4:20 AM

Action Rating: 3 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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