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

52°F
Overcast
Overcast
47.3°F
64.4°F
94%
ENE 14.5 mph
16.7 mph
64.4°F
58.9°F
0 in
100%
9 mi
1012 mbar
6.1

Five Day Weather Forecast

Sunny
Sun
H: 69°F
L: 54°F
Patchy rain nearby
Mon
H: 73°F
L: 57°F
Fog
Tue
H: 85°F
L: 58°F
Sunny
Wed
H: 74°F
L: 59°F
Sunny
Thu
H: 83°F
L: 61°F

Air Quality

AQI: 1 - Good
PM2.5: 2.7 μg/m3
PM10: 2.8 μg/m3
Carbon Monoxide: 108 μg/m3
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 1:11 PM
Sunset: 9:06 PM
Daylight: 15 hrs 51 mins
Moonrise: 8:46 PM
Moon Transit: 12:00 AM
Moonset: 3:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:22 AM - 1:52 PM

Minor Periods

8:16 PM - 9:46 PM
3:03 AM - 4:33 AM

Action Rating: 2 out of 5

Beach Hazards Statement issued June 28 at 4:43AM CDT until June 28 at 10:00PM CDT by NWS Duluth MN

Effective: Sun June 28, 2026, 4:43 AM
Expires: Sun June 28, 2026, 10:00 PM

* WHAT...Dangerous swimming conditions are expected along the Lake Superior shoreline due to high wave action and strong rip currents. * WHERE...Minnesota Park Point and Wisconsin Point Beaches. * WHEN...From 10 AM CDT this morning through this evening. * IMPACTS...Life-threatening waves and rip currents are expected. Stay out of the water and stay away from dangerous areas like piers and breakwalls.

Remain out of the water to avoid hazardous swimming conditions.


Heat Advisory issued June 28 at 12:45PM CDT until June 30 at 12:00AM CDT by NWS Duluth MN

Effective: Sun June 28, 2026, 12:45 PM
Expires: Mon June 29, 2026, 12:45 AM

* WHAT...Heat index values of 100 to 105 expected. * WHERE...Douglas County. * WHEN...From 9 AM Monday to midnight CDT Monday Night. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Sunday, June 28, 2026

Weather Forecast

Sunny
68.7°F
54°F
61.5°F
78%
0.01 in
20%
0%
14.5 mph
6.1


Air Quality

AQI: 1 - Good
PM2.5: 2.98 μg/m3
PM10: 3.07 μg/m3
Carbon Monoxide: 109.79 μg/m3
Nitrogen Dioxide: 2.04 μg/m3
Sulphur Dioxide: 0.32 μg/m3
Ozone: 69.25 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 1:11 PM
Sunset: 9:06 PM
Daylight: 15 hrs 51 mins
Moonrise: 8:46 PM
Moon Transit: 12:00 AM
Moonset: 3:33 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:22 AM - 1:52 PM

Minor Periods

8:16 PM - 9:46 PM
3:03 AM - 4:33 AM

Action Rating: 2 out of 5

Monday, June 29, 2026

Weather Forecast

Patchy rain nearby
72.5°F
56.5°F
62.6°F
94%
0.21 in
88%
0%
13.4 mph
3.6


Air Quality

AQI: 1 - Good
PM2.5: 2.57 μg/m3
PM10: 2.77 μg/m3
Carbon Monoxide: 131.71 μg/m3
Nitrogen Dioxide: 2.23 μg/m3
Sulphur Dioxide: 0.45 μg/m3
Ozone: 86.21 μg/m3

Astronomical

Sunrise: 5:16 AM
Sun Transit: 1:11 PM
Sunset: 9:06 PM
Daylight: 15 hrs 50 mins
Moonrise: 9:31 PM
Moon Transit: 12:34 AM
Moonset: 4:24 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:04 AM - 2:34 AM
12:14 AM - 2:44 PM

Minor Periods

9:01 PM - 10:31 PM
3:54 AM - 5:24 AM

Action Rating: 5 out of 5

Tuesday, June 30, 2026

Weather Forecast

Fog
84.5°F
57.5°F
70.4°F
79%
0.07 in
63%
0%
11 mph
8.4


Air Quality

AQI: 1 - Good
PM2.5: 4.6 μg/m3
PM10: 5.23 μg/m3
Carbon Monoxide: 133.25 μg/m3
Nitrogen Dioxide: 3 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 91.71 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 1:11 PM
Sunset: 9:06 PM
Daylight: 15 hrs 49 mins
Moonrise: 10:07 PM
Moon Transit: 1:25 AM
Moonset: 5:24 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

12:55 AM - 3:25 AM
1:04 PM - 3:34 PM

Minor Periods

9:37 PM - 11:07 PM
4:54 AM - 6:24 AM

Action Rating: 4 out of 5

Wednesday, July 1, 2026

Weather Forecast

Sunny
73.6°F
59.3°F
65.8°F
89%
3.28 in
84%
0%
16.3 mph
5.5


Air Quality

AQI: 1 - Good
PM2.5: 9.5 μg/m3
PM10: 10.61 μg/m3
Carbon Monoxide: 163.13 μg/m3
Nitrogen Dioxide: 6.86 μg/m3
Sulphur Dioxide: 0.86 μg/m3
Ozone: 86.5 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 1:11 PM
Sunset: 9:06 PM
Daylight: 15 hrs 48 mins
Moonrise: 10:35 PM
Moon Transit: 2:15 AM
Moonset: 6:31 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

1:45 AM - 4:15 AM
1:53 PM - 4:23 PM

Minor Periods

10:05 PM - 11:35 PM
6:01 AM - 7:31 AM

Action Rating: 3 out of 5

Thursday, July 2, 2026

Weather Forecast

Sunny
82.6°F
60.8°F
70.7°F
84%
0.09 in
66%
0%
4.5 mph
6.4


Air Quality

AQI: 1 - Good
PM2.5: 6.63 μg/m3
PM10: 7.5 μg/m3
Carbon Monoxide: 184.5 μg/m3
Nitrogen Dioxide: 6.18 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 62.13 μg/m3

Astronomical

Sunrise: 5:18 AM
Sun Transit: 1:11 PM
Sunset: 9:05 PM
Daylight: 15 hrs 48 mins
Moonrise: 10:58 PM
Moon Transit: 3:03 AM
Moonset: 7:39 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:33 AM - 5:03 AM
2:40 PM - 5:10 PM

Minor Periods

10:28 PM - 11:58 PM
7:09 AM - 8:39 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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