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

55.9°F
Sunny
Sunny
54.1°F
76.4°F
82%
E 7.6 mph
11.2 mph
72.6°F
61.5°F
0 in
0%
9 mi
1016 mbar
5.7

Five Day Weather Forecast

Sunny
Sat
H: 75°F
L: 54°F
Patchy rain nearby
Sun
H: 69°F
L: 50°F
Patchy rain nearby
Mon
H: 73°F
L: 56°F
Patchy rain nearby
Tue
H: 85°F
L: 57°F
Heavy rain
Wed
H: 85°F
L: 59°F

Air Quality

AQI: 1 - Good
PM2.5: 5 μg/m3
PM10: 5.3 μg/m3
Carbon Monoxide: 104 μg/m3
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 1:10 PM
Sunset: 9:06 PM
Daylight: 15 hrs 51 mins
Moonrise: 7:51 PM
Moon Transit: 11:43 PM
Moonset: 2:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.2%

Best Times for Fishing or Hunting

Major Periods

10:31 AM - 1:01 PM
12:00 AM - 12:00 AM

Minor Periods

7:21 PM - 8:51 PM
2:22 AM - 3:52 AM

Action Rating: 3 out of 5

Small Craft Advisory issued June 27 at 1:45AM CDT until June 27 at 10:00PM CDT by NWS Duluth MN

Effective: Sat June 27, 2026, 1:45 AM
Expires: Sat June 27, 2026, 1:45 PM

* WHAT...Winds 15 to 20 kts with gusts to 25 kts and waves 2 to 3 ft expected. * WHERE...Two Harbors to Duluth MN and Duluth MN to Port Wing WI. * WHEN...From 4 PM this afternoon to 10 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft.

Anyone operating a smaller vessel should avoid navigating in hazardous conditions.


Small Craft Advisory issued June 27 at 3:50AM CDT until June 27 at 10:00PM CDT by NWS Duluth MN

Effective: Sat June 27, 2026, 3:50 AM
Expires: Sat June 27, 2026, 4:00 PM

* WHAT...Winds 15 to 20 kts with gusts to 25 kts and waves 2 to 3 ft expected. * WHERE...Two Harbors to Duluth MN and Duluth MN to Port Wing WI. * WHEN...From 4 PM this afternoon to 10 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft.

Anyone operating a smaller vessel should avoid navigating in hazardous conditions.


Small Craft Advisory issued June 27 at 10:33AM CDT until June 27 at 10:00PM CDT by NWS Duluth MN

Effective: Sat June 27, 2026, 10:33 AM
Expires: Sat June 27, 2026, 10:00 PM

* WHAT...Northeast winds 10 to 15 kt with gusts up to 25 kt and waves 2 to 3 ft expected. * WHERE...Two Harbors to Duluth MN and Duluth MN to Port Wing WI. * WHEN...From 4 PM this afternoon to 10 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft.

Anyone operating a smaller vessel should avoid navigating in hazardous conditions.


Small Craft Advisory issued June 27 at 2:40PM CDT until June 27 at 10:00PM CDT by NWS Duluth MN

Effective: Sat June 27, 2026, 2:40 PM
Expires: Sat June 27, 2026, 10:00 PM

* WHAT...Northeast winds 10 to 15 kt with gusts up to 25 kt and waves 2 to 3 ft expected. * WHERE...Two Harbors to Duluth MN and Duluth MN to Port Wing WI. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Conditions will be hazardous to small craft.

Anyone operating a smaller vessel should avoid navigating in hazardous conditions.
Saturday, June 27, 2026

Weather Forecast

Sunny
74.5°F
54°F
64°F
70%
0 in
6%
0%
11.2 mph
7.4


Air Quality

AQI: 1 - Good
PM2.5: 5.18 μg/m3
PM10: 5.6 μg/m3
Carbon Monoxide: 104.25 μg/m3
Nitrogen Dioxide: 2.39 μg/m3
Sulphur Dioxide: 0.23 μg/m3
Ozone: 67.04 μg/m3

Astronomical

Sunrise: 5:15 AM
Sun Transit: 1:10 PM
Sunset: 9:06 PM
Daylight: 15 hrs 51 mins
Moonrise: 7:51 PM
Moon Transit: 11:43 PM
Moonset: 2:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.2%

Best Times for Fishing or Hunting

Major Periods

10:31 AM - 1:01 PM
12:00 AM - 12:00 AM

Minor Periods

7:21 PM - 8:51 PM
2:22 AM - 3:52 AM

Action Rating: 3 out of 5

Sunday, June 28, 2026

Weather Forecast

Patchy rain nearby
69°F
50.4°F
58.6°F
84%
0.03 in
51%
0%
12.8 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 4.53 μg/m3
PM10: 4.66 μg/m3
Carbon Monoxide: 104.92 μg/m3
Nitrogen Dioxide: 2.11 μg/m3
Sulphur Dioxide: 0.36 μg/m3
Ozone: 74.83 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 1:11 PM
Sunset: 9:06 PM
Daylight: 15 hrs 51 mins
Moonrise: 8:46 PM
Moon Transit: 12:00 AM
Moonset: 3:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:22 AM - 1:52 PM

Minor Periods

8:16 PM - 9:46 PM
3:03 AM - 4:33 AM

Action Rating: 2 out of 5

Monday, June 29, 2026

Weather Forecast

Patchy rain nearby
72.6°F
56.3°F
60.4°F
96%
0.04 in
73%
0%
13.9 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 2.21 μg/m3
PM10: 2.35 μg/m3
Carbon Monoxide: 133.83 μg/m3
Nitrogen Dioxide: 2.94 μg/m3
Sulphur Dioxide: 0.45 μg/m3
Ozone: 81.33 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 1:11 PM
Sunset: 9:06 PM
Daylight: 15 hrs 50 mins
Moonrise: 9:31 PM
Moon Transit: 12:34 AM
Moonset: 4:24 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:04 AM - 2:34 AM
12:14 AM - 2:44 PM

Minor Periods

9:01 PM - 10:31 PM
3:54 AM - 5:24 AM

Action Rating: 5 out of 5

Tuesday, June 30, 2026

Weather Forecast

Patchy rain nearby
84.5°F
57°F
68.8°F
84%
0.17 in
76%
0%
14.8 mph
8.8


Air Quality

AQI: 1 - Good
PM2.5: 3.25 μg/m3
PM10: 3.73 μg/m3
Carbon Monoxide: 131.32 μg/m3
Nitrogen Dioxide: 3.06 μg/m3
Sulphur Dioxide: 0.53 μg/m3
Ozone: 82.42 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 1:11 PM
Sunset: 9:06 PM
Daylight: 15 hrs 49 mins
Moonrise: 10:07 PM
Moon Transit: 1:25 AM
Moonset: 5:24 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

12:55 AM - 3:25 AM
1:04 PM - 3:34 PM

Minor Periods

9:37 PM - 11:07 PM
4:54 AM - 6:24 AM

Action Rating: 4 out of 5

Wednesday, July 1, 2026

Weather Forecast

Heavy rain
85.3°F
59.1°F
71.7°F
69%
0.95 in
66%
0%
11.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.68 μg/m3
PM10: 1.7 μg/m3
Carbon Monoxide: 134.88 μg/m3
Nitrogen Dioxide: 4.4 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 56.75 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 1:11 PM
Sunset: 9:06 PM
Daylight: 15 hrs 48 mins
Moonrise: 10:35 PM
Moon Transit: 2:15 AM
Moonset: 6:31 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

1:45 AM - 4:15 AM
1:53 PM - 4:23 PM

Minor Periods

10:05 PM - 11:35 PM
6:01 AM - 7:31 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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