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

75.9°F
Clear
Clear
78.9°F
81.7°F
89%
WSW 9.6 mph
20.2 mph
78.4°F
68.4°F
0 in
0%
9 mi
1018 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 99°F
L: 74°F
Sunny
Wed
H: 77°F
L: 62°F
Sunny
Thu
H: 76°F
L: 59°F
Light rain shower
Fri
H: 71°F
L: 58°F
Sunny
Sat
H: 83°F
L: 62°F

Air Quality

AQI: 1 - Good
PM2.5: 2.9 μg/m3
PM10: 3.1 μg/m3
Carbon Monoxide: 134 μg/m3
Nitrogen Dioxide: 4.1 μg/m3
Sulphur Dioxide: 0.9 μg/m3
Ozone: 86 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 1:13 PM
Sunset: 8:59 PM
Daylight: 15 hrs 32 mins
Moonrise: 5:20 AM
Moon Transit: 1:37 PM
Moonset: 9:38 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:20 AM - 2:50 AM
1:07 PM - 3:37 PM

Minor Periods

9:08 PM - 10:38 PM
4:50 AM - 6:20 AM

Action Rating: 4 out of 5

Tuesday, July 14, 2026

Weather Forecast

Sunny
99°F
73.9°F
84.4°F
56%
0 in
3%
0%
13.2 mph
9.2


Air Quality

AQI: 1 - Good
PM2.5: 5.17 μg/m3
PM10: 5.35 μg/m3
Carbon Monoxide: 136.17 μg/m3
Nitrogen Dioxide: 4.06 μg/m3
Sulphur Dioxide: 1.03 μg/m3
Ozone: 106.08 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 1:13 PM
Sunset: 8:59 PM
Daylight: 15 hrs 32 mins
Moonrise: 5:20 AM
Moon Transit: 1:37 PM
Moonset: 9:38 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:20 AM - 2:50 AM
1:07 PM - 3:37 PM

Minor Periods

9:08 PM - 10:38 PM
4:50 AM - 6:20 AM

Action Rating: 4 out of 5

Wednesday, July 15, 2026

Weather Forecast

Sunny
77.3°F
62°F
70.5°F
50%
0 in
2%
0%
12.8 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 6.67 μg/m3
PM10: 6.93 μg/m3
Carbon Monoxide: 118.13 μg/m3
Nitrogen Dioxide: 3.73 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 80.83 μg/m3

Astronomical

Sunrise: 5:28 AM
Sun Transit: 1:13 PM
Sunset: 8:58 PM
Daylight: 15 hrs 30 mins
Moonrise: 6:48 AM
Moon Transit: 2:36 PM
Moonset: 10:07 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

1:21 AM - 3:51 AM
2:06 PM - 4:36 PM

Minor Periods

9:37 PM - 11:07 PM
6:18 AM - 7:48 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
75.5°F
58.7°F
65.5°F
72%
0.07 in
57%
0%
17 mph
7.9


Air Quality

AQI: 1 - Good
PM2.5: 7.6 μg/m3
PM10: 8.16 μg/m3
Carbon Monoxide: 127.5 μg/m3
Nitrogen Dioxide: 3.31 μg/m3
Sulphur Dioxide: 0.41 μg/m3
Ozone: 75.88 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 1:13 PM
Sunset: 8:58 PM
Daylight: 15 hrs 28 mins
Moonrise: 8:12 AM
Moon Transit: 3:29 PM
Moonset: 10:29 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

2:17 AM - 4:47 AM
2:59 PM - 5:29 PM

Minor Periods

9:59 PM - 11:29 PM
7:42 AM - 9:12 AM

Action Rating: 3 out of 5

Friday, July 17, 2026

Weather Forecast

Light rain shower
71.1°F
57.8°F
63.3°F
97%
0.62 in
91%
0%
10.1 mph
2.1


Air Quality

AQI: 1 - Good
PM2.5: 4.41 μg/m3
PM10: 4.72 μg/m3
Carbon Monoxide: 137.28 μg/m3
Nitrogen Dioxide: 2.08 μg/m3
Sulphur Dioxide: 0.34 μg/m3
Ozone: 83.75 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 1:13 PM
Sunset: 8:57 PM
Daylight: 15 hrs 26 mins
Moonrise: 9:32 AM
Moon Transit: 4:17 PM
Moonset: 10:47 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

3:08 AM - 5:38 AM
3:47 PM - 6:17 PM

Minor Periods

10:17 PM - 11:47 PM
9:02 AM - 10:32 AM

Action Rating: 3 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
83°F
62.2°F
71.4°F
72%
0.01 in
22%
0%
12.8 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 5.63 μg/m3
PM10: 5.86 μg/m3
Carbon Monoxide: 163.75 μg/m3
Nitrogen Dioxide: 3.4 μg/m3
Sulphur Dioxide: 0.54 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 1:14 PM
Sunset: 8:56 PM
Daylight: 15 hrs 24 mins
Moonrise: 10:48 AM
Moon Transit: 5:03 PM
Moonset: 11:04 PM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

3:54 AM - 6:24 AM
4:33 PM - 7:03 PM

Minor Periods

12:00 AM - 12:00 AM
10:18 AM - 11:48 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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