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

10.9°F
Clear
Clear
-1.6°F
7.5°F
64%
NW 8.9 mph
13.9 mph
-8.2°F
-0.8°F
0 in
0%
9 mi
1015 mbar
0

Five Day Weather Forecast

Overcast
Sat
H: 18°F
L: 3°F
Sunny
Sun
H: 23°F
L: 3°F
Overcast
Mon
H: 31°F
L: 9°F
Moderate snow
Tue
H: 33°F
L: 22°F
Overcast
Wed
H: 38°F
L: 25°F

Air Quality

PM2.5: 3.25 μg/m3
PM10: 3.65 μg/m3
Carbon Monoxide: 164.85 μg/m3
Nitrogen Dioxide: 2.05 μg/m3
Sulphur Dioxide: 1.65 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 12:20 AM
Sunset: 5:52 PM
Daylight: 11 hrs 3 mins
Moonrise: 2:37 PM
Moon Transit: 10:31 PM
Moonset: 5:40 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.1%

Best Times for Fishing or Hunting

Major Periods

9:18 AM - 11:48 AM
12:00 AM - 12:00 AM

Minor Periods

2:07 PM - 3:37 PM
5:10 AM - 6:40 AM

Action Rating: 3 out of 5

Wind Advisory issued February 27 at 12:10PM CST until February 28 at 12:00AM CST by NWS Duluth MN

Effective: Fri February 27, 2026, 12:10 PM
Expires: Sat February 28, 2026, 12:00 AM

* WHAT...West winds 15 to 25 mph with gusts up to 50 mph. * WHERE...In Minnesota, Carlton, South and Central St. Louis, North Cook and Lake Counties. In Wisconsin, Bayfield and Douglas Counties. This includes the Tribal Lands of the Bois Forte Band, Lake Vermilion area, the Fond du Lac Band and the Red Cliff Band. Other locations including the Apostle Islands National Lakeshore. This also includes the Boundary Waters eastern and central area. * WHEN...Until midnight CST tonight. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.


Wind Advisory issued February 27 at 5:11PM CST until February 28 at 12:00AM CST by NWS Duluth MN

Effective: Fri February 27, 2026, 5:11 PM
Expires: Sat February 28, 2026, 12:00 AM

* WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph. * WHERE...In Minnesota, Carlton and South St. Louis, Central St. Louis, Northern Cook and Lake, and Southern Lake Counties. In Wisconsin, Bayfield and Douglas Counties. This includes the Tribal Lands of the Fond du Lac Band, the Bois Forte Band, Lake Vermilion area and the Red Cliff Band. Recreation spots such as the Apostle Islands National Lakeshore. This also includes the Boundary Waters eastern and central area. * WHEN...Until midnight CST tonight. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.
Saturday, February 28, 2026

Weather Forecast

Overcast
18°F
2.7°F
10.7°F
67%
0 in
0%
0%
11 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 3.2 μg/m3
PM10: 3.57 μg/m3
Carbon Monoxide: 169.29 μg/m3
Nitrogen Dioxide: 2.03 μg/m3
Sulphur Dioxide: 1.88 μg/m3
Ozone: 82.56 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 12:20 AM
Sunset: 5:52 PM
Daylight: 11 hrs 3 mins
Moonrise: 2:37 PM
Moon Transit: 10:31 PM
Moonset: 5:40 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.1%

Best Times for Fishing or Hunting

Major Periods

9:18 AM - 11:48 AM
12:00 AM - 12:00 AM

Minor Periods

2:07 PM - 3:37 PM
5:10 AM - 6:40 AM

Action Rating: 3 out of 5

Sunday, March 1, 2026

Weather Forecast

Sunny
23°F
3.4°F
12.5°F
58%
0 in
0%
0%
4.9 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 3.59 μg/m3
PM10: 4.08 μg/m3
Carbon Monoxide: 199.73 μg/m3
Nitrogen Dioxide: 3.43 μg/m3
Sulphur Dioxide: 2.31 μg/m3
Ozone: 85.44 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 12:20 AM
Sunset: 5:53 PM
Daylight: 11 hrs 6 mins
Moonrise: 3:58 PM
Moon Transit: 11:21 PM
Moonset: 6:07 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.8%

Best Times for Fishing or Hunting

Major Periods

10:11 AM - 12:41 AM
12:00 AM - 12:00 AM

Minor Periods

3:28 PM - 4:58 PM
5:37 AM - 7:07 AM

Action Rating: 3 out of 5

Monday, March 2, 2026

Weather Forecast

Overcast
31.1°F
8.6°F
19°F
74%
0 in
0%
0%
14.1 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 7.36 μg/m3
PM10: 7.87 μg/m3
Carbon Monoxide: 235.43 μg/m3
Nitrogen Dioxide: 6.19 μg/m3
Sulphur Dioxide: 2.67 μg/m3
Ozone: 79.88 μg/m3

Astronomical

Sunrise: 6:46 AM
Sun Transit: 12:19 AM
Sunset: 5:55 PM
Daylight: 11 hrs 9 mins
Moonrise: 5:15 PM
Moon Transit: 12:00 AM
Moonset: 6:29 AM
Moon Phase: Full
Moon Illumination: 99.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:59 AM - 1:29 PM

Minor Periods

4:45 PM - 6:15 PM
5:59 AM - 7:29 AM

Action Rating: 4 out of 5

Tuesday, March 3, 2026

Weather Forecast

Moderate snow
32.5°F
22.2°F
28.2°F
96%
0.06 in
67%
57%
5.4 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 10.35 μg/m3
PM10: 11.03 μg/m3
Carbon Monoxide: 192.63 μg/m3
Nitrogen Dioxide: 4.96 μg/m3
Sulphur Dioxide: 2.1 μg/m3
Ozone: 85 μg/m3

Astronomical

Sunrise: 6:44 AM
Sun Transit: 12:19 AM
Sunset: 5:56 PM
Daylight: 11 hrs 13 mins
Moonrise: 6:30 PM
Moon Transit: 12:09 AM
Moonset: 6:47 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:45 AM - 2:15 PM

Minor Periods

6:00 PM - 7:30 PM
6:17 AM - 7:47 AM

Action Rating: 5 out of 5

Wednesday, March 4, 2026

Weather Forecast

Overcast
37.9°F
25.3°F
29.5°F
96%
0 in
0%
39%
4.9 mph
1


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:42 AM
Sun Transit: 12:19 AM
Sunset: 5:58 PM
Daylight: 11 hrs 16 mins
Moonrise: 7:42 PM
Moon Transit: 12:53 AM
Moonset: 7:02 AM
Moon Phase: Full
Moon Illumination: 98.2%

Best Times for Fishing or Hunting

Major Periods

12:23 AM - 2:53 AM
12:30 AM - 3:00 PM

Minor Periods

7:12 PM - 8:42 PM
6:32 AM - 8:02 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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