Water Temperature of Lake Superior Near Duluth, MN

Current Water Temperature

51.6°F

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

17.8°F
Partly cloudy
Partly cloudy
14.3°F
19.8°F
67%
WNW 2.5 mph
5.2 mph
9.7°F
6.7°F
0 in
75%
9 mi
1032 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 43°F
L: 19°F
Moderate rain
Wed
H: 38°F
L: 30°F
Partly Cloudy
Thu
H: 40°F
L: 33°F
Sunny
Fri
H: 46°F
L: 27°F
Sunny
Sat
H: 48°F
L: 28°F

Air Quality

AQI: 1 - Good
PM2.5: 4.95 μg/m3
PM10: 5.65 μg/m3
Carbon Monoxide: 227.85 μg/m3
Nitrogen Dioxide: 4.65 μg/m3
Sulphur Dioxide: 4.55 μg/m3
Ozone: 90 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:09 PM
Sunset: 7:45 PM
Daylight: 13 hrs 10 mins
Moonrise: 1:16 AM
Moon Transit: 5:06 AM
Moonset: 8:55 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

4:36 AM - 7:06 AM
4:47 PM - 7:17 PM

Minor Periods

8:25 AM - 9:55 AM
12:46 AM - 2:16 AM

Action Rating: 3 out of 5

Tuesday, April 7, 2026

Weather Forecast

Sunny
43°F
19.4°F
29.4°F
53%
0 in
0%
0%
9.2 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 3.87 μg/m3
PM10: 4.54 μg/m3
Carbon Monoxide: 192.05 μg/m3
Nitrogen Dioxide: 3.48 μg/m3
Sulphur Dioxide: 2.36 μg/m3
Ozone: 95.04 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:09 PM
Sunset: 7:45 PM
Daylight: 13 hrs 10 mins
Moonrise: 1:16 AM
Moon Transit: 5:06 AM
Moonset: 8:55 AM
Moon Phase: Waning Gibbous
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

4:36 AM - 7:06 AM
4:47 PM - 7:17 PM

Minor Periods

8:25 AM - 9:55 AM
12:46 AM - 2:16 AM

Action Rating: 3 out of 5

Wednesday, April 8, 2026

Weather Forecast

Moderate rain
38.3°F
29.5°F
34.7°F
91%
0.59 in
88%
9%
14.5 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 7.7 μg/m3
PM10: 9.2 μg/m3
Carbon Monoxide: 186.21 μg/m3
Nitrogen Dioxide: 3.72 μg/m3
Sulphur Dioxide: 2.11 μg/m3
Ozone: 86.12 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:09 PM
Sunset: 7:46 PM
Daylight: 13 hrs 13 mins
Moonrise: 2:11 AM
Moon Transit: 5:58 AM
Moonset: 9:46 AM
Moon Phase: Last Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

5:28 AM - 7:58 AM
5:38 PM - 8:08 PM

Minor Periods

9:16 AM - 10:46 AM
1:41 AM - 3:11 AM

Action Rating: 3 out of 5

Thursday, April 9, 2026

Weather Forecast

Partly Cloudy
40.1°F
33.1°F
36°F
81%
0 in
0%
0%
15 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 2.5 μg/m3
PM10: 2.53 μg/m3
Carbon Monoxide: 175.93 μg/m3
Nitrogen Dioxide: 2.88 μg/m3
Sulphur Dioxide: 1.68 μg/m3
Ozone: 92.36 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:08 PM
Sunset: 7:48 PM
Daylight: 13 hrs 16 mins
Moonrise: 2:57 AM
Moon Transit: 6:49 AM
Moonset: 10:46 AM
Moon Phase: Last Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

6:19 AM - 8:49 AM
6:30 PM - 9:00 PM

Minor Periods

10:16 AM - 11:46 AM
2:27 AM - 3:57 AM

Action Rating: 3 out of 5

Friday, April 10, 2026

Weather Forecast

Sunny
45.7°F
26.7°F
35.7°F
74%
0 in
0%
0%
5.4 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 3.56 μg/m3
PM10: 3.82 μg/m3
Carbon Monoxide: 183.89 μg/m3
Nitrogen Dioxide: 4.24 μg/m3
Sulphur Dioxide: 2.3 μg/m3
Ozone: 94.56 μg/m3

Astronomical

Sunrise: 6:29 AM
Sun Transit: 1:08 PM
Sunset: 7:49 PM
Daylight: 13 hrs 20 mins
Moonrise: 3:33 AM
Moon Transit: 7:39 AM
Moonset: 11:52 AM
Moon Phase: Last Quarter
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

7:09 AM - 9:39 AM
7:19 PM - 9:49 PM

Minor Periods

11:22 AM - 12:52 AM
3:03 AM - 4:33 AM

Action Rating: 3 out of 5

Saturday, April 11, 2026

Weather Forecast

Sunny
47.5°F
28.3°F
35.5°F
81%
0 in
0%
0%
9.4 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 5.28 μg/m3
PM10: 5.56 μg/m3
Carbon Monoxide: 192.17 μg/m3
Nitrogen Dioxide: 8.57 μg/m3
Sulphur Dioxide: 2.48 μg/m3
Ozone: 74.31 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 1:08 PM
Sunset: 7:50 PM
Daylight: 13 hrs 23 mins
Moonrise: 4:02 AM
Moon Transit: 8:28 AM
Moonset: 1:03 PM
Moon Phase: Last Quarter
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

7:58 AM - 10:28 AM
8:07 PM - 10:37 PM

Minor Periods

12:33 AM - 2:03 PM
3:32 AM - 5:02 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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