Water Temperature of Lake Superior Near Duluth, MN

Current Water Temperature

55.2°F

Measurement Time: Tuesday, October 14, 2025, 1:10 PM 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

35.6°F
Clear
Clear
30.3°F
43.8°F
100%
E 6.3 mph
13.2 mph
40.1°F
35.8°F
0 in
0%
9 mi
1005 mbar
0

Five Day Weather Forecast

Moderate rain
Fri
H: 54°F
L: 33°F
Cloudy
Sat
H: 41°F
L: 23°F
Sunny
Sun
H: 46°F
L: 29°F
Sunny
Mon
H: 59°F
L: 25°F
Sunny
Tue
H: 58°F
L: 35°F

Air Quality

AQI: 1 - Good
PM2.5: 5.05 μg/m3
PM10: 5.55 μg/m3
Carbon Monoxide: 187.85 μg/m3
Nitrogen Dioxide: 4.35 μg/m3
Sulphur Dioxide: 1.65 μg/m3
Ozone: 84 μg/m3

Astronomical

Sunrise: 6:16 AM
Sun Transit: 1:07 PM
Sunset: 7:59 PM
Daylight: 13 hrs 43 mins
Moonrise: 5:59 AM
Moon Transit: 1:15 PM
Moonset: 8:51 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

12:02 AM - 2:32 AM
12:45 AM - 3:15 PM

Minor Periods

8:21 PM - 9:51 PM
5:29 AM - 6:59 AM

Action Rating: 4 out of 5

Friday, April 17, 2026

Weather Forecast

Moderate rain
54.3°F
32.5°F
43.3°F
78%
0.42 in
86%
0%
15.4 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 4.4 μg/m3
PM10: 4.88 μg/m3
Carbon Monoxide: 173.89 μg/m3
Nitrogen Dioxide: 3.97 μg/m3
Sulphur Dioxide: 1.4 μg/m3
Ozone: 88.2 μg/m3

Astronomical

Sunrise: 6:16 AM
Sun Transit: 1:07 PM
Sunset: 7:59 PM
Daylight: 13 hrs 43 mins
Moonrise: 5:59 AM
Moon Transit: 1:15 PM
Moonset: 8:51 PM
Moon Phase: New
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

12:02 AM - 2:32 AM
12:45 AM - 3:15 PM

Minor Periods

8:21 PM - 9:51 PM
5:29 AM - 6:59 AM

Action Rating: 4 out of 5

Saturday, April 18, 2026

Weather Forecast

Cloudy
41.4°F
23°F
30.9°F
59%
0 in
0%
0%
17.4 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 2.31 μg/m3
PM10: 2.62 μg/m3
Carbon Monoxide: 158.17 μg/m3
Nitrogen Dioxide: 1.98 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 90.8 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 1:07 PM
Sunset: 8:01 PM
Daylight: 13 hrs 46 mins
Moonrise: 6:24 AM
Moon Transit: 2:11 PM
Moonset: 10:18 PM
Moon Phase: New
Moon Illumination: 1.2%

Best Times for Fishing or Hunting

Major Periods

12:56 AM - 3:26 AM
1:41 PM - 4:11 PM

Minor Periods

9:48 PM - 11:18 PM
5:54 AM - 7:24 AM

Action Rating: 4 out of 5

Sunday, April 19, 2026

Weather Forecast

Sunny
46.2°F
28.8°F
36.2°F
48%
0 in
0%
0%
9.8 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 3.45 μg/m3
PM10: 4.19 μg/m3
Carbon Monoxide: 162.29 μg/m3
Nitrogen Dioxide: 2 μg/m3
Sulphur Dioxide: 1.73 μg/m3
Ozone: 94.28 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 1:06 PM
Sunset: 8:02 PM
Daylight: 13 hrs 49 mins
Moonrise: 6:57 AM
Moon Transit: 3:12 PM
Moonset: 11:43 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%

Best Times for Fishing or Hunting

Major Periods

1:55 AM - 4:25 AM
2:42 PM - 5:12 PM

Minor Periods

12:00 AM - 12:00 AM
6:27 AM - 7:57 AM

Action Rating: 3 out of 5

Monday, April 20, 2026

Weather Forecast

Sunny
58.5°F
25.4°F
41.8°F
54%
0 in
0%
0%
17 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 3.86 μg/m3
PM10: 4.89 μg/m3
Carbon Monoxide: 190.73 μg/m3
Nitrogen Dioxide: 3.01 μg/m3
Sulphur Dioxide: 1.82 μg/m3
Ozone: 90.52 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 1:06 PM
Sunset: 8:03 PM
Daylight: 13 hrs 52 mins
Moonrise: 7:42 AM
Moon Transit: 4:17 PM
Moonset: 12:43 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%

Best Times for Fishing or Hunting

Major Periods

2:58 AM - 5:28 AM
3:47 PM - 6:17 PM

Minor Periods

7:12 AM - 8:42 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Tuesday, April 21, 2026

Weather Forecast

Sunny
57.9°F
35.3°F
43.8°F
70%
0 in
0%
0%
13.4 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 5.33 μg/m3
PM10: 6.01 μg/m3
Carbon Monoxide: 174.35 μg/m3
Nitrogen Dioxide: 3.9 μg/m3
Sulphur Dioxide: 1.9 μg/m3
Ozone: 91.77 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 1:06 PM
Sunset: 8:05 PM
Daylight: 13 hrs 55 mins
Moonrise: 8:42 AM
Moon Transit: 5:22 PM
Moonset: 12:58 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%

Best Times for Fishing or Hunting

Major Periods

4:03 AM - 6:33 AM
4:52 PM - 7:22 PM

Minor Periods

8:12 AM - 9:42 AM
12:28 AM - 1:58 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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