Water Temperature of Lake Superior Near Duluth, MN

Current Water Temperature

51.3°F 10.7°C
Cold Thermal Gear Required
51.3°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Cold shock risk with rapid dexterity loss (10–15 mins). Wetsuit or drysuit strongly advised for any immersion.

Measurement Time: Tuesday, October 13, 2026, 9:30 AM CDT

Temperature Locations

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Local Points of Interest

McQuade Harbor; Lakewood, MN

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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

43.9°F
Overcast
Conditions: Overcast
Humidity: 65%
Feels Like: 37°F
Wind: NW 7.6 mph
Wind Gusts: 10.3 mph
Pressure: 29.94 in
Precipitation: 0 in
Cloud Cover: 98%
Visibility: 16.6 mi
UV Index: 0

Weather Forecast

Overcast
Wed
H: 48°F
L: 34°F
Overcast
Thu
H: 37°F
L: 30°F
Overcast
Fri
H: 39°F
L: 28°F
Overcast
Sat
H: 40°F
L: 28°F
Overcast
Sun
H: 41°F
L: 32°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
6.4 μg/m³
Good
PM10
6.7 μg/m³
Good
Ozone (O3)
32 μg/m³
Photochemical
NO2
16.6 μg/m³
Nitrogen Dioxide
SO2
1.5 μg/m³
Sulfur Dioxide
CO
141 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 33m daylight
Sunrise 7:05 AM
Solar Noon 11:51 AM
Sunset 4:38 PM
Moon
New • 2%
Moonrise 9:56 AM
Transit 1:48 PM
Moonset 5:40 PM

Best Times for Fishing or Hunting

Major Periods

12:52 AM - 3:22 AM
1:18 PM - 3:48 PM

Minor Periods

9:26 AM - 10:56 AM
5:10 PM - 6:40 PM
Action Rating:
Good Action 3/5
Wednesday, November 11, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 42.6°F
Average Humidity: 68%
Chance of Rain: 31%
Wind: 13 mph
UV Index: 2.4

Air Quality

EPA Index 1 • Good
PM2.5
2.4 μg/m³
Good
PM10
2.6 μg/m³
Good
Ozone (O3)
52.1 μg/m³
Photochemical
NO2
4.9 μg/m³
Nitrogen Dioxide
SO2
0.8 μg/m³
Sulfur Dioxide
CO
128.6 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 33m daylight
Sunrise 7:05 AM
Solar Noon 11:51 AM
Sunset 4:38 PM
Moon
New • 2%
Moonrise 9:56 AM
Transit 1:48 PM
Moonset 5:40 PM

Best Times for Fishing or Hunting

Major Periods

12:52 AM - 3:22 AM
1:18 PM - 3:48 PM

Minor Periods

9:26 AM - 10:56 AM
5:10 PM - 6:40 PM
Action Rating:
Good Action 3/5
Thursday, November 12, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 33.8°F
Average Humidity: 66%
Chance of Rain: 3%
Wind: 10.3 mph
UV Index: 2.2

Air Quality

EPA Index 1 • Good
PM2.5
0.6 μg/m³
Good
PM10
0.7 μg/m³
Good
Ozone (O3)
73.4 μg/m³
Photochemical
NO2
1.3 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
111.5 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 31m daylight
Sunrise 7:06 AM
Solar Noon 11:51 AM
Sunset 4:37 PM
Moon
Waxing Crescent • 6%
Moonrise 10:49 AM
Transit 2:40 PM
Moonset 6:33 PM

Best Times for Fishing or Hunting

Major Periods

1:44 AM - 4:14 AM
2:10 PM - 4:40 PM

Minor Periods

10:19 AM - 11:49 AM
6:03 PM - 7:33 PM
Action Rating:
Good Action 3/5
Friday, November 13, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 31.8°F
Average Humidity: 68%
Chance of Rain: 0%
Wind: 8 mph
UV Index: 2.2

Air Quality

EPA Index 1 • Good
PM2.5
1.5 μg/m³
Good
PM10
1.7 μg/m³
Good
Ozone (O3)
71 μg/m³
Photochemical
NO2
2.9 μg/m³
Nitrogen Dioxide
SO2
0.5 μg/m³
Sulfur Dioxide
CO
115.7 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 28m daylight
Sunrise 7:08 AM
Solar Noon 11:52 AM
Sunset 4:36 PM
Moon
Waxing Crescent • 13%
Moonrise 11:33 AM
Transit 3:30 PM
Moonset 7:32 PM

Best Times for Fishing or Hunting

Major Periods

2:35 AM - 5:05 AM
3:00 PM - 5:30 PM

Minor Periods

11:03 AM - 12:33 PM
7:02 PM - 8:32 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 32.7°F
Average Humidity: 78%
Chance of Rain: 0%
Wind: 5.2 mph
UV Index: 2.3

Air Quality

EPA Index 1 • Good
PM2.5
2.3 μg/m³
Good
PM10
2.5 μg/m³
Good
Ozone (O3)
64.7 μg/m³
Photochemical
NO2
4.2 μg/m³
Nitrogen Dioxide
SO2
0.7 μg/m³
Sulfur Dioxide
CO
134.5 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 25m daylight
Sunrise 7:09 AM
Solar Noon 11:52 AM
Sunset 4:35 PM
Moon
Waxing Crescent • 21%
Moonrise 12:07 PM
Transit 4:19 PM
Moonset 8:38 PM

Best Times for Fishing or Hunting

Major Periods

3:25 AM - 5:55 AM
3:49 PM - 6:19 PM

Minor Periods

11:37 AM - 1:07 PM
8:08 PM - 9:38 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 35.8°F
Average Humidity: 77%
Chance of Rain: 2%
Wind: 5 mph
UV Index: 2.1

Air Quality

EPA Index 1 • Good
PM2.5
0.5 μg/m³
Good
PM10
0.5 μg/m³
Good
Ozone (O3)
62.9 μg/m³
Photochemical
NO2
1.5 μg/m³
Nitrogen Dioxide
SO2
0.2 μg/m³
Sulfur Dioxide
CO
155 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 23m daylight
Sunrise 7:11 AM
Solar Noon 11:52 AM
Sunset 4:34 PM
Moon
Waxing Crescent • 31%
Moonrise 12:35 PM
Transit 5:05 PM
Moonset 9:45 PM

Best Times for Fishing or Hunting

Major Periods

4:12 AM - 6:42 AM
4:35 PM - 7:05 PM

Minor Periods

12:05 PM - 1:35 PM
9:15 PM - 10:45 PM
Action Rating:
Very Good 4/5
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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