Water Temperature of Lake Superior Near Duluth, MN

Current Water Temperature

35.8°F

Measurement Time: Saturday, May 9, 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

52.2°F
Partly cloudy
Partly cloudy
48.3°F
53.6°F
35%
NNW 11.2 mph
12.9 mph
49.6°F
25.2°F
0 in
75%
9 mi
1006 mbar
5.3

Five Day Weather Forecast

Sunny
Sat
H: 57°F
L: 43°F
Partly Cloudy
Sun
H: 52°F
L: 31°F
Sunny
Mon
H: 51°F
L: 30°F
Patchy rain nearby
Tue
H: 59°F
L: 37°F
Patchy rain nearby
Wed
H: 62°F
L: 40°F

Air Quality

AQI: 1 - Good
PM2.5: 1.85 μg/m3
PM10: 1.95 μg/m3
Carbon Monoxide: 141.85 μg/m3
Nitrogen Dioxide: 1.85 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 85 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:04 PM
Sunset: 8:29 PM
Daylight: 14 hrs 49 mins
Moonrise: 2:28 AM
Moon Transit: 7:08 AM
Moonset: 11:59 AM
Moon Phase: Last Quarter
Moon Illumination: 36.7%

Best Times for Fishing or Hunting

Major Periods

6:38 AM - 9:08 AM
6:45 PM - 9:15 PM

Minor Periods

11:29 AM - 12:59 AM
1:58 AM - 3:28 AM

Action Rating: 2 out of 5

Special Weather Statement issued May 9 at 5:43AM CDT by NWS Duluth MN

Effective: Sat May 9, 2026, 5:43 AM
Expires: Sat May 9, 2026, 10:00 AM

Dry conditions and breezy winds will lead to near critical fire weather conditions today. Northwest winds of 10 to 15 mph with gusts of 20 to 25 mph are forecast for this afternoon into the evening. Minimum relative humidity values of 20 to 25 percent are also expected. Together, these conditions could lead to the rapid spread of fires. Check burning restrictions and fire danger before burning. For more information on burning restrictions for Minnesota, see www.dnr.state.mn.us/forestry/fire/firerating_restrictions.html.


Saturday, May 9, 2026

Weather Forecast

Sunny
57.2°F
42.6°F
50°F
37%
0 in
0%
0%
14.8 mph
5.8


Air Quality

AQI: 1 - Good
PM2.5: 8.09 μg/m3
PM10: 9.25 μg/m3
Carbon Monoxide: 162.69 μg/m3
Nitrogen Dioxide: 3.96 μg/m3
Sulphur Dioxide: 2.07 μg/m3
Ozone: 81.56 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:04 PM
Sunset: 8:29 PM
Daylight: 14 hrs 49 mins
Moonrise: 2:28 AM
Moon Transit: 7:08 AM
Moonset: 11:59 AM
Moon Phase: Last Quarter
Moon Illumination: 36.7%

Best Times for Fishing or Hunting

Major Periods

6:38 AM - 9:08 AM
6:45 PM - 9:15 PM

Minor Periods

11:29 AM - 12:59 AM
1:58 AM - 3:28 AM

Action Rating: 2 out of 5

Sunday, May 10, 2026

Weather Forecast

Partly Cloudy
51.7°F
31.1°F
40.5°F
58%
0 in
0%
0%
10.3 mph
5.3


Air Quality

AQI: 1 - Good
PM2.5: 1.77 μg/m3
PM10: 1.81 μg/m3
Carbon Monoxide: 142.01 μg/m3
Nitrogen Dioxide: 2.82 μg/m3
Sulphur Dioxide: 1.72 μg/m3
Ozone: 75.76 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:04 PM
Sunset: 8:30 PM
Daylight: 14 hrs 51 mins
Moonrise: 2:48 AM
Moon Transit: 7:54 AM
Moonset: 1:11 PM
Moon Phase: Last Quarter
Moon Illumination: 26.2%

Best Times for Fishing or Hunting

Major Periods

7:24 AM - 9:54 AM
7:30 PM - 10:00 PM

Minor Periods

12:41 AM - 2:11 PM
2:18 AM - 3:48 AM

Action Rating: 2 out of 5

Monday, May 11, 2026

Weather Forecast

Sunny
51.2°F
29.5°F
40.7°F
59%
0 in
0%
0%
8.7 mph
6.3


Air Quality

AQI: 1 - Good
PM2.5: 4.92 μg/m3
PM10: 5.03 μg/m3
Carbon Monoxide: 142.21 μg/m3
Nitrogen Dioxide: 5.86 μg/m3
Sulphur Dioxide: 2.16 μg/m3
Ozone: 71.84 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:04 PM
Sunset: 8:32 PM
Daylight: 14 hrs 54 mins
Moonrise: 3:06 AM
Moon Transit: 8:38 AM
Moonset: 2:24 PM
Moon Phase: Last Quarter
Moon Illumination: 16.9%

Best Times for Fishing or Hunting

Major Periods

8:08 AM - 10:38 AM
8:14 PM - 10:44 PM

Minor Periods

1:54 PM - 3:24 PM
2:36 AM - 4:06 AM

Action Rating: 3 out of 5

Tuesday, May 12, 2026

Weather Forecast

Patchy rain nearby
58.5°F
36.5°F
46.2°F
86%
0.14 in
85%
0%
17.4 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 3.15 μg/m3
PM10: 3.43 μg/m3
Carbon Monoxide: 139.51 μg/m3
Nitrogen Dioxide: 3.09 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 70.96 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:04 PM
Sunset: 8:33 PM
Daylight: 14 hrs 57 mins
Moonrise: 3:23 AM
Moon Transit: 8:41 PM
Moonset: 3:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.3%

Best Times for Fishing or Hunting

Major Periods

8:11 PM - 10:41 PM
8:11 PM - 10:41 PM

Minor Periods

3:08 PM - 4:38 PM
2:53 AM - 4:23 AM

Action Rating: 4 out of 5

Wednesday, May 13, 2026

Weather Forecast

Patchy rain nearby
61.5°F
40.3°F
49.2°F
66%
0 in
87%
0%
15.2 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 7.6 μg/m3
PM10: 8.6 μg/m3
Carbon Monoxide: 152.95 μg/m3
Nitrogen Dioxide: 4.93 μg/m3
Sulphur Dioxide: 2.08 μg/m3
Ozone: 63.62 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:04 PM
Sunset: 8:34 PM
Daylight: 14 hrs 59 mins
Moonrise: 3:40 AM
Moon Transit: 10:10 AM
Moonset: 4:56 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:40 AM - 12:10 AM

Minor Periods

4:26 PM - 5:56 PM
3:10 AM - 4:40 AM

Action Rating: 2 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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