Water Temperature of Lake Superior Near Duluth, MN

Current Water Temperature

55.2°F

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

36.1°F
Overcast
Overcast
31.1°F
34.3°F
64%
NW 6 mph
12.3 mph
27.3°F
18.3°F
0 in
100%
9 mi
1023 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Tue
H: 44°F
L: 31°F
Moderate or heavy snow showers
Wed
H: 30°F
L: 24°F
Blowing snow
Thu
H: 31°F
L: 27°F
Moderate or heavy snow showers
Fri
H: 29°F
L: 23°F
Blizzard
Sat
H: 32°F
L: 26°F

Air Quality

AQI: 1 - Good
PM2.5: 1.35 μg/m3
PM10: 1.45 μg/m3
Carbon Monoxide: 172.85 μg/m3
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 98 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:11 PM
Sunset: 7:36 PM
Daylight: 12 hrs 47 mins
Moonrise: 6:25 PM
Moon Transit: 12:00 AM
Moonset: 6:09 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:24 AM - 1:54 PM

Minor Periods

5:55 PM - 7:25 PM
5:39 AM - 7:09 AM

Action Rating: 4 out of 5

Winter Storm Watch issued March 31 at 2:24PM CDT until April 3 at 1:00AM CDT by NWS Duluth MN

Effective: Tue March 31, 2026, 2:24 PM
Expires: Wed April 1, 2026, 2:30 AM

* WHAT...Heavy mixed precipitation possible. Total snow and sleet accumulations between 4 and 9 inches except between 7 and 10 inches for the higher terrain of the North Shore and ice accumulations around one tenth of an inch possible. Winds could gust as high as 35 mph. * WHERE...In Minnesota, Pine, Carlton, South and Central St. Louis, Cook and Lake Counties. In Wisconsin, Ashland, Bayfield, Douglas, and Iron Counties. This includes the Tribal Lands of the Red Cliff Band, the Bois Forte Band, Lake Vermilion area, the Fond du Lac Band, the Grand Portage Reservation, the Bad River Reservation, the northwestern area of the Lac du Flambeau Band and the Mille Lacs Band, Hinckley and, Lena Lake areas. Other locations including the Apostle Islands National Lakeshore and Madeline Island. This also includes the Boundary Waters eastern and central area. * WHEN...From Wednesday evening through late Thursday night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Thursday morning and evening commutes.

Monitor the latest forecasts for updates on this situation.
Tuesday, March 31, 2026

Weather Forecast

Patchy rain nearby
43.7°F
30.9°F
36.1°F
67%
0.01 in
74%
0%
17.7 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 4.99 μg/m3
PM10: 6.26 μg/m3
Carbon Monoxide: 183.41 μg/m3
Nitrogen Dioxide: 1.95 μg/m3
Sulphur Dioxide: 1.38 μg/m3
Ozone: 97.76 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:11 PM
Sunset: 7:36 PM
Daylight: 12 hrs 47 mins
Moonrise: 6:25 PM
Moon Transit: 12:00 AM
Moonset: 6:09 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:24 AM - 1:54 PM

Minor Periods

5:55 PM - 7:25 PM
5:39 AM - 7:09 AM

Action Rating: 4 out of 5

Wednesday, April 1, 2026

Weather Forecast

Moderate or heavy snow showers
30°F
23.7°F
27.9°F
84%
0.07 in
81%
3%
18.1 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 1.41 μg/m3
PM10: 1.55 μg/m3
Carbon Monoxide: 165.69 μg/m3
Nitrogen Dioxide: 1.72 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 94.2 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:11 PM
Sunset: 7:37 PM
Daylight: 12 hrs 50 mins
Moonrise: 7:35 PM
Moon Transit: 12:31 AM
Moonset: 6:24 AM
Moon Phase: Full
Moon Illumination: 99.8%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 AM
12:06 AM - 2:36 PM

Minor Periods

7:05 PM - 8:35 PM
5:54 AM - 7:24 AM

Action Rating: 3 out of 5

Thursday, April 2, 2026

Weather Forecast

Blowing snow
31.1°F
26.6°F
28.7°F
92%
2.44 in
76%
66%
25.1 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.51 μg/m3
PM10: 1.78 μg/m3
Carbon Monoxide: 153.53 μg/m3
Nitrogen Dioxide: 1.62 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 95.84 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:11 PM
Sunset: 7:38 PM
Daylight: 12 hrs 53 mins
Moonrise: 8:46 PM
Moon Transit: 1:13 AM
Moonset: 6:40 AM
Moon Phase: Full
Moon Illumination: 99.5%

Best Times for Fishing or Hunting

Major Periods

12:43 AM - 3:13 AM
12:49 AM - 3:19 PM

Minor Periods

8:16 PM - 9:46 PM
6:10 AM - 7:40 AM

Action Rating: 3 out of 5

Friday, April 3, 2026

Weather Forecast

Moderate or heavy snow showers
28.6°F
22.6°F
27.1°F
86%
0.59 in
83%
31%
20.4 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 1.5 μg/m3
PM10: 1.65 μg/m3
Carbon Monoxide: 147.58 μg/m3
Nitrogen Dioxide: 1.56 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 102.6 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 1:10 PM
Sunset: 7:40 PM
Daylight: 12 hrs 57 mins
Moonrise: 9:56 PM
Moon Transit: 1:56 AM
Moonset: 6:57 AM
Moon Phase: Full
Moon Illumination: 96.6%

Best Times for Fishing or Hunting

Major Periods

1:26 AM - 3:56 AM
1:32 PM - 4:02 PM

Minor Periods

9:26 PM - 10:56 PM
6:27 AM - 7:57 AM

Action Rating: 4 out of 5

Saturday, April 4, 2026

Weather Forecast

Blizzard
31.5°F
25.9°F
29.9°F
95%
1.07 in
70%
67%
22.1 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 1.72 μg/m3
PM10: 1.98 μg/m3
Carbon Monoxide: 145.7 μg/m3
Nitrogen Dioxide: 1.45 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 102.38 μg/m3

Astronomical

Sunrise: 6:41 AM
Sun Transit: 1:10 PM
Sunset: 7:41 PM
Daylight: 13 hrs mins
Moonrise: 11:05 PM
Moon Transit: 2:41 AM
Moonset: 7:17 AM
Moon Phase: Full
Moon Illumination: 91.3%

Best Times for Fishing or Hunting

Major Periods

2:11 AM - 4:41 AM
2:18 PM - 4:48 PM

Minor Periods

12:00 AM - 12:00 AM
6:47 AM - 8:17 AM

Action Rating: 4 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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