Water Temperature of Lake Superior in Duluth, MN

Current Water Temperature

63.0°F

Measurement Time: Saturday, September 16, 2023, 12:00 AM CDT

Temperature Locations

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Local Points of Interest

Lakewood, MN

Lake Superior

Station Name: Lakewood Water Plant
Data Source: USGS

Elevation Above Sea Level: 614 feet

Nearest Address:
8126 Congdon Blvd
Duluth, MN 55804
St. Louis County

GPS Coordinates: 46.8619, -91.9600

Nearby Water Temperatures

Lake Superior, Duluth, MN (1.4 mi)
Lake Superior, Duluth, MN (7 mi)
Duluth Harbor, Duluth, MN (8.6 mi)
Knife River, Knife River, MN (9.9 mi)
Lake Superior, Superior, WI (10.9 mi)
Lake Superior, Two Harbors, MN (17.6 mi)
Bois Brule River, Maple, WI (20.1 mi)
St. Louis River, Scanlon, MN (24.3 mi)
Saint Louis River, Hoyt Lakes, MN (42.9 mi)
Baptism River, Illgen City, MN (48.6 mi)
Partrige River, Babbitt, MN (52.4 mi)
Chequamegon Bay, Ashland, WI (54.1 mi)
Dunka River, Babbitt, MN (55.8 mi)
St. Croix River, Danbury, WI (56 mi)
Namekagon River, Cable, WI (56.3 mi)

Weather for Duluth, Minnesota

Current Weather

16.3°F
Patchy light snow
Patchy light snow
4.5°F
15.1°F
85%
S 9.6 mph
12.3 mph
3°F
10.8°F
0 in
100%
1 mi
1013 mbar
0

Five Day Weather Forecast

Light freezing rain
Tue
H: 23°F
L: 1°F
Patchy moderate snow
Wed
H: 42°F
L: 15°F
Fog
Thu
H: 43°F
L: 33°F
Overcast
Fri
H: 40°F
L: 35°F
Patchy rain nearby
Sat
H: 36°F
L: 31°F

Air Quality

AQI: 1 - Good
PM2.5: 6.95 μg/m3
PM10: 7.55 μg/m3
Carbon Monoxide: 214.85 μg/m3
Nitrogen Dioxide: 3.05 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 95 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:00 AM
Sunset: 7:16 PM
Daylight: 12 hrs mins
Moonrise: 6:43 AM
Moon Transit: 12:12 AM
Moonset: 5:56 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:42 AM - 2:12 PM

Minor Periods

5:26 PM - 6:56 PM
6:13 AM - 7:43 AM

Action Rating: 5 out of 5

Tuesday, March 17, 2026

Weather Forecast

Light freezing rain
23.4°F
1°F
12°F
56%
0.01 in
85%
16%
9.6 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 4.62 μg/m3
PM10: 5.48 μg/m3
Carbon Monoxide: 220.09 μg/m3
Nitrogen Dioxide: 2.46 μg/m3
Sulphur Dioxide: 1.92 μg/m3
Ozone: 87.12 μg/m3

Astronomical

Sunrise: 7:16 AM
Sun Transit: 12:00 AM
Sunset: 7:16 PM
Daylight: 12 hrs mins
Moonrise: 6:43 AM
Moon Transit: 12:12 AM
Moonset: 5:56 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:42 AM - 2:12 PM

Minor Periods

5:26 PM - 6:56 PM
6:13 AM - 7:43 AM

Action Rating: 5 out of 5

Wednesday, March 18, 2026

Weather Forecast

Patchy moderate snow
42.4°F
14.5°F
28.9°F
87%
0.02 in
77%
33%
8.7 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 7.87 μg/m3
PM10: 8.59 μg/m3
Carbon Monoxide: 225.29 μg/m3
Nitrogen Dioxide: 4.06 μg/m3
Sulphur Dioxide: 1.98 μg/m3
Ozone: 95.6 μg/m3

Astronomical

Sunrise: 7:14 AM
Sun Transit: 12:00 AM
Sunset: 7:18 PM
Daylight: 12 hrs 3 mins
Moonrise: 7:00 AM
Moon Transit: 12:58 AM
Moonset: 7:12 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:28 AM - 2:58 PM

Minor Periods

6:42 PM - 8:12 PM
6:30 AM - 8:00 AM

Action Rating: 3 out of 5

Thursday, March 19, 2026

Weather Forecast

Fog
42.8°F
33.1°F
38.4°F
98%
0 in
0%
0%
6.3 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 3.22 μg/m3
PM10: 3.6 μg/m3
Carbon Monoxide: 212.45 μg/m3
Nitrogen Dioxide: 4.01 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 96.44 μg/m3

Astronomical

Sunrise: 7:12 AM
Sun Transit: 12:00 AM
Sunset: 7:19 PM
Daylight: 12 hrs 7 mins
Moonrise: 7:17 AM
Moon Transit: 12:31 AM
Moonset: 8:32 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 AM
12:01 AM - 2:31 AM

Minor Periods

8:02 PM - 9:32 PM
6:47 AM - 8:17 AM

Action Rating: 4 out of 5

Friday, March 20, 2026

Weather Forecast

Overcast
40.3°F
34.5°F
37.3°F
97%
0 in
0%
0%
8.3 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 11.64 μg/m3
PM10: 12.21 μg/m3
Carbon Monoxide: 211.34 μg/m3
Nitrogen Dioxide: 5.31 μg/m3
Sulphur Dioxide: 2.2 μg/m3
Ozone: 96.84 μg/m3

Astronomical

Sunrise: 7:10 AM
Sun Transit: 9:27 AM
Sunset: 7:20 PM
Daylight: 12 hrs 10 mins
Moonrise: 7:36 AM
Moon Transit: 2:35 PM
Moonset: 9:53 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:05 PM - 4:35 PM

Minor Periods

9:23 PM - 10:53 PM
7:06 AM - 8:36 AM

Action Rating: 4 out of 5

Saturday, March 21, 2026

Weather Forecast

Patchy rain nearby
36.3°F
31°F
33.9°F
96%
0.01 in
89%
10%
9.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 5.31 μg/m3
PM10: 6.19 μg/m3
Carbon Monoxide: 181.23 μg/m3
Nitrogen Dioxide: 7.85 μg/m3
Sulphur Dioxide: 2.33 μg/m3
Ozone: 76.62 μg/m3

Astronomical

Sunrise: 7:08 AM
Sun Transit: 12:00 AM
Sunset: 7:22 PM
Daylight: 12 hrs 13 mins
Moonrise: 7:57 AM
Moon Transit: 3:28 PM
Moonset: 11:17 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

2:15 AM - 4:45 AM
2:58 PM - 5:28 PM

Minor Periods

12:00 AM - 12:00 AM
7:27 AM - 8:57 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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