Water Temperature of Lake Superior Near Duluth, MN

Current Water Temperature

66.6°F

Measurement Time: Wednesday, July 22, 2026, 5:40 PM CDT

Temperature Locations

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Lake Superior

Station Name: Western Lake Superior
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: 46.814, -91.829

Nearby Water Temperatures

Lake Superior, Duluth, MN (5.7 mi)
Lake Superior, Duluth, MN (7 mi)
Knife River, Knife River, MN (9.3 mi)
Duluth Harbor, Duluth, MN (12.7 mi)
Lake Superior, Superior, WI (12.8 mi)
Bois Brule River, Maple, WI (13.1 mi)
Lake Superior, Two Harbors, MN (16.1 mi)
St. Louis River, Scanlon, MN (28.9 mi)
Baptism River, Illgen City, MN (46.7 mi)
Saint Louis River, Hoyt Lakes, MN (47.1 mi)
Chequamegon Bay, Ashland, WI (47.2 mi)
Namekagon River, Cable, WI (50.4 mi)
St. Croix River, Danbury, WI (54.7 mi)
Partrige River, Babbitt, MN (55.8 mi)
Bad River, Ashland, WI (58.3 mi)

Weather Near Duluth, Minnesota

Current Weather

68.4°F
Clear
Clear
68.4°F
67.6°F
60%
SW 5.4 mph
11.3 mph
67.6°F
42.4°F
0 in
0%
9 mi
1018 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 81°F
L: 52°F
Sunny
Thu
H: 83°F
L: 57°F
Sunny
Fri
H: 84°F
L: 60°F
Sunny
Sat
H: 89°F
L: 66°F
Sunny
Sun
H: 75°F
L: 56°F

Air Quality

AQI: 1 - Good
PM2.5: 7.9 μg/m3
PM10: 8.3 μg/m3
Carbon Monoxide: 201 μg/m3
Nitrogen Dioxide: 9.8 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 76 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:13 PM
Sunset: 8:51 PM
Daylight: 15 hrs 16 mins
Moonrise: 3:31 PM
Moon Transit: 8:00 PM
Moonset: 12:57 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

6:51 AM - 9:21 AM
7:30 PM - 10:00 PM

Minor Periods

3:01 PM - 4:31 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Wednesday, July 22, 2026

Weather Forecast

Sunny
80.6°F
51.6°F
65.9°F
52%
0 in
2%
0%
6.3 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 5.38 μg/m3
PM10: 5.69 μg/m3
Carbon Monoxide: 123.42 μg/m3
Nitrogen Dioxide: 3.83 μg/m3
Sulphur Dioxide: 0.69 μg/m3
Ozone: 79.17 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:13 PM
Sunset: 8:51 PM
Daylight: 15 hrs 16 mins
Moonrise: 3:31 PM
Moon Transit: 8:00 PM
Moonset: 12:57 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

6:51 AM - 9:21 AM
7:30 PM - 10:00 PM

Minor Periods

3:01 PM - 4:31 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
82.5°F
57.1°F
71°F
47%
0 in
2%
0%
11.6 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 10.49 μg/m3
PM10: 10.83 μg/m3
Carbon Monoxide: 183 μg/m3
Nitrogen Dioxide: 4.6 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 85.96 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:13 PM
Sunset: 8:50 PM
Daylight: 15 hrs 14 mins
Moonrise: 4:39 PM
Moon Transit: 8:47 PM
Moonset: 12:22 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

7:38 AM - 10:08 AM
8:17 PM - 10:47 PM

Minor Periods

4:09 PM - 5:39 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
83.6°F
59.9°F
73°F
64%
0 in
7%
0%
15.7 mph
7.6


Air Quality

AQI: 1 - Good
PM2.5: 5.83 μg/m3
PM10: 6 μg/m3
Carbon Monoxide: 171.21 μg/m3
Nitrogen Dioxide: 3.51 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 104.75 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:13 PM
Sunset: 8:49 PM
Daylight: 15 hrs 12 mins
Moonrise: 5:43 PM
Moon Transit: 9:37 PM
Moonset: 12:51 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

8:27 AM - 10:57 AM
9:07 PM - 11:37 PM

Minor Periods

5:13 PM - 6:43 PM
12:21 AM - 1:51 AM

Action Rating: 3 out of 5

Saturday, July 25, 2026

Weather Forecast

Sunny
88.8°F
65.8°F
75.3°F
69%
0 in
17%
0%
16.6 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 6.09 μg/m3
PM10: 6.28 μg/m3
Carbon Monoxide: 157.55 μg/m3
Nitrogen Dioxide: 3.65 μg/m3
Sulphur Dioxide: 0.82 μg/m3
Ozone: 103.63 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:13 PM
Sunset: 8:48 PM
Daylight: 15 hrs 9 mins
Moonrise: 6:41 PM
Moon Transit: 10:28 PM
Moonset: 1:29 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

9:18 AM - 11:48 AM
12:00 AM - 12:00 AM

Minor Periods

6:11 PM - 7:41 PM
12:59 AM - 2:29 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
74.6°F
56.1°F
64.2°F
80%
0 in
19%
0%
12.3 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 5.59 μg/m3
PM10: 5.65 μg/m3
Carbon Monoxide: 189.75 μg/m3
Nitrogen Dioxide: 4.93 μg/m3
Sulphur Dioxide: 0.53 μg/m3
Ozone: 51.88 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:13 PM
Sunset: 8:47 PM
Daylight: 15 hrs 7 mins
Moonrise: 7:29 PM
Moon Transit: 11:20 PM
Moonset: 2:18 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

10:09 AM - 12:39 AM
12:00 AM - 12:00 AM

Minor Periods

6:59 PM - 8:29 PM
1:48 AM - 3:18 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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