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

50.2°F
Clear
Clear
50.6°F
56.2°F
100%
SSE 2.2 mph
2.8 mph
56.7°F
46.3°F
0 in
0%
9 mi
999 mbar
0

Five Day Weather Forecast

Heavy rain
Wed
H: 55°F
L: 50°F
Partly Cloudy
Thu
H: 63°F
L: 48°F
Patchy rain nearby
Fri
H: 65°F
L: 42°F
Sunny
Sat
H: 67°F
L: 43°F
Sunny
Sun
H: 60°F
L: 43°F

Air Quality

AQI: 1 - Good
PM2.5: 3.3 μg/m3
PM10: 3.8 μg/m3
Carbon Monoxide: 122 μg/m3
Nitrogen Dioxide: 6.9 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 65 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 1:08 PM
Sunset: 9:05 PM
Daylight: 15 hrs 52 mins
Moonrise: 7:53 AM
Moon Transit: 3:56 PM
Moonset: 12:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 4.6%

Best Times for Fishing or Hunting

Major Periods

2:40 AM - 5:10 AM
3:26 PM - 5:56 PM

Minor Periods

7:23 AM - 8:53 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Small Craft Advisory issued June 16 at 9:52PM CDT until June 18 at 1:00AM CDT by NWS Duluth MN

Effective: Tue June 16, 2026, 9:52 PM
Expires: Wed June 17, 2026, 10:00 AM

* WHAT...Northeast winds 10 to 20 kt with gusts up to 30 kt and waves 1 to 4 ft expected. * WHERE...Two Harbors to Duluth MN and Duluth MN to Port Wing WI. * WHEN...From 11 AM Wednesday to 1 AM CDT Thursday. * IMPACTS...Conditions will be hazardous to small craft.

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


Small Craft Advisory issued June 16 at 1:09PM CDT until June 18 at 1:00AM CDT by NWS Duluth MN

Effective: Tue June 16, 2026, 1:09 PM
Expires: Wed June 17, 2026, 4:00 AM

* WHAT...Northeast winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft expected. * WHERE...Two Harbors to Duluth MN and Duluth MN to Port Wing WI. * WHEN...From 11 AM Wednesday to 1 AM CDT Thursday. * IMPACTS...Conditions will be hazardous to small craft.

Anyone operating a smaller vessel should avoid navigating in hazardous conditions.
Wednesday, June 17, 2026

Weather Forecast

Heavy rain
55.4°F
50.3°F
53.2°F
89%
0.85 in
88%
0%
11.4 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 2.84 μg/m3
PM10: 3.33 μg/m3
Carbon Monoxide: 114.58 μg/m3
Nitrogen Dioxide: 3.3 μg/m3
Sulphur Dioxide: 0.38 μg/m3
Ozone: 61.83 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 1:08 PM
Sunset: 9:05 PM
Daylight: 15 hrs 52 mins
Moonrise: 7:53 AM
Moon Transit: 3:56 PM
Moonset: 12:09 AM
Moon Phase: Waxing Crescent
Moon Illumination: 4.6%

Best Times for Fishing or Hunting

Major Periods

2:40 AM - 5:10 AM
3:26 PM - 5:56 PM

Minor Periods

7:23 AM - 8:53 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Thursday, June 18, 2026

Weather Forecast

Partly Cloudy
62.5°F
47.7°F
54.6°F
69%
0 in
9%
0%
13 mph
6.7


Air Quality

AQI: 1 - Good
PM2.5: 2.97 μg/m3
PM10: 3.23 μg/m3
Carbon Monoxide: 119.25 μg/m3
Nitrogen Dioxide: 3.38 μg/m3
Sulphur Dioxide: 0.58 μg/m3
Ozone: 58.29 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 1:08 PM
Sunset: 9:05 PM
Daylight: 15 hrs 53 mins
Moonrise: 9:17 AM
Moon Transit: 4:51 PM
Moonset: 12:42 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%

Best Times for Fishing or Hunting

Major Periods

3:38 AM - 6:08 AM
4:21 PM - 6:51 PM

Minor Periods

8:47 AM - 10:17 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, June 19, 2026

Weather Forecast

Patchy rain nearby
64.5°F
42°F
52.8°F
80%
0.17 in
74%
0%
11.6 mph
6.3


Air Quality

AQI: 1 - Good
PM2.5: 3.18 μg/m3
PM10: 3.23 μg/m3
Carbon Monoxide: 128.63 μg/m3
Nitrogen Dioxide: 5.25 μg/m3
Sulphur Dioxide: 0.77 μg/m3
Ozone: 57.75 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 1:09 PM
Sunset: 9:05 PM
Daylight: 15 hrs 53 mins
Moonrise: 10:38 AM
Moon Transit: 5:40 PM
Moonset: 12:07 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.3%

Best Times for Fishing or Hunting

Major Periods

4:30 AM - 7:00 AM
5:10 PM - 7:40 PM

Minor Periods

10:08 AM - 11:38 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, June 20, 2026

Weather Forecast

Sunny
67.2°F
42.7°F
54.5°F
71%
0 in
8%
0%
8.5 mph
6.6


Air Quality

AQI: 1 - Good
PM2.5: 2.36 μg/m3
PM10: 2.4 μg/m3
Carbon Monoxide: 121.43 μg/m3
Nitrogen Dioxide: 3.73 μg/m3
Sulphur Dioxide: 0.59 μg/m3
Ozone: 58.21 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 1:09 PM
Sunset: 9:06 PM
Daylight: 15 hrs 53 mins
Moonrise: 11:54 AM
Moon Transit: 6:25 PM
Moonset: 12:27 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

5:17 AM - 7:47 AM
5:55 PM - 8:25 PM

Minor Periods

11:24 AM - 12:54 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Sunday, June 21, 2026

Weather Forecast

Sunny
59.5°F
42.7°F
50.4°F
73%
0 in
7%
0%
9.8 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 1.88 μg/m3
PM10: 1.89 μg/m3
Carbon Monoxide: 129.13 μg/m3
Nitrogen Dioxide: 5.91 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 41.38 μg/m3

Astronomical

Sunrise: 5:13 AM
Sun Transit: 1:09 PM
Sunset: 9:06 PM
Daylight: 15 hrs 53 mins
Moonrise: 1:06 PM
Moon Transit: 7:09 PM
Moonset: 12:44 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%

Best Times for Fishing or Hunting

Major Periods

6:01 AM - 8:31 AM
6:39 PM - 9:09 PM

Minor Periods

12:36 AM - 2:06 PM
12:14 AM - 1:44 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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