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

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Lake Superior

Station Name: Lakewood Water Plant
Data Source: USGS

Elevation Above Sea Level: 614 feet / 187 meters

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 (7.0 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 (56.0 mi)
Namekagon River, Cable, WI (56.3 mi)

Weather for Duluth, Minnesota

Current Weather

61°F
Partly cloudy
Conditions: Partly cloudy
Humidity: 100%
Feels Like: 61°F
Wind: ENE 15.2 mph
Wind Gusts: 24.8 mph
Pressure: 30.08 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Overcast
Thu
H: 59°F
L: 54°F
Overcast
Fri
H: 55°F
L: 51°F
Moderate rain
Sat
H: 61°F
L: 53°F
Patchy rain nearby
Sun
H: 65°F
L: 56°F
Moderate rain
Mon
H: 66°F
L: 58°F

Air Quality

AQI: 1 - Good
PM2.5: 1.3 μg/m3
PM10: 1.48 μg/m3
Carbon Monoxide: 299.7 μg/m3
Nitrogen Dioxide: 1.67 μg/m3
Sulphur Dioxide: 0.74 μg/m3
Ozone: 49 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:01 PM
Sunset: 7:13 PM
Daylight: 12 hrs 23 mins
Moonrise: 3:04 AM
Moon Transit: 10:45 AM
Moonset: 6:10 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:15 AM - 12:45 AM

Minor Periods

5:40 PM - 7:10 PM
2:34 AM - 4:04 AM

Action Rating: 3 out of 5

Thursday, September 18, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 57.3°F
Average Humidity: 91%
Chance of Rain: 0%
Wind: 19.7 mph
UV Index: 0.6

Air Quality

AQI: 1 - Good
PM2.5: 5.99 μg/m3
PM10: 6.3 μg/m3
Carbon Monoxide: 331.37 μg/m3
Nitrogen Dioxide: 4.22 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 66.36 μg/m3

Astronomical

Sunrise: 6:50 AM
Sun Transit: 1:01 PM
Sunset: 7:13 PM
Daylight: 12 hrs 23 mins
Moonrise: 3:04 AM
Moon Transit: 10:45 AM
Moonset: 6:10 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:15 AM - 12:45 AM

Minor Periods

5:40 PM - 7:10 PM
2:34 AM - 4:04 AM

Action Rating: 3 out of 5

Friday, September 19, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 52.9°F
Average Humidity: 96%
Chance of Rain: 0%
Wind: 19.7 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 3.22 μg/m3
PM10: 3.36 μg/m3
Carbon Monoxide: 284.09 μg/m3
Nitrogen Dioxide: 1.87 μg/m3
Sulphur Dioxide: 0.57 μg/m3
Ozone: 55.88 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:01 PM
Sunset: 7:11 PM
Daylight: 12 hrs 19 mins
Moonrise: 4:19 AM
Moon Transit: 11:31 AM
Moonset: 6:28 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:01 AM - 1:31 PM

Minor Periods

5:58 PM - 7:28 PM
3:49 AM - 5:19 AM

Action Rating: 3 out of 5

Saturday, September 20, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 57.1°F
Average Humidity: 97%
Chance of Rain: 84%
Wind: 14.5 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 4.27 μg/m3
PM10: 4.4 μg/m3
Carbon Monoxide: 310.95 μg/m3
Nitrogen Dioxide: 3.69 μg/m3
Sulphur Dioxide: 0.56 μg/m3
Ozone: 65 μg/m3

Astronomical

Sunrise: 6:53 AM
Sun Transit: 1:01 PM
Sunset: 7:09 PM
Daylight: 12 hrs 16 mins
Moonrise: 5:30 AM
Moon Transit: 12:14 AM
Moonset: 6:44 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:44 AM - 2:14 PM

Minor Periods

6:14 PM - 7:44 PM
5:00 AM - 6:30 AM

Action Rating: 3 out of 5

Sunday, September 21, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 59.7°F
Average Humidity: 94%
Chance of Rain: 85%
Wind: 5.8 mph
UV Index: 0.7

Air Quality

AQI: 1 - Good
PM2.5: 9.44 μg/m3
PM10: 9.64 μg/m3
Carbon Monoxide: 357.2 μg/m3
Nitrogen Dioxide: 7.58 μg/m3
Sulphur Dioxide: 1.32 μg/m3
Ozone: 80.32 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:00 PM
Sunset: 7:07 PM
Daylight: 12 hrs 13 mins
Moonrise: 6:40 AM
Moon Transit: 12:55 AM
Moonset: 6:58 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:25 AM - 2:55 PM

Minor Periods

6:28 PM - 7:58 PM
6:10 AM - 7:40 AM

Action Rating: 3 out of 5

Monday, September 22, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 60.7°F
Average Humidity: 97%
Chance of Rain: 83%
Wind: 10.3 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 9.82 μg/m3
PM10: 10 μg/m3
Carbon Monoxide: 367.15 μg/m3
Nitrogen Dioxide: 14.94 μg/m3
Sulphur Dioxide: 4.2 μg/m3
Ozone: 60.85 μg/m3

Astronomical

Sunrise: 6:55 AM
Sun Transit: 1:00 PM
Sunset: 7:05 PM
Daylight: 12 hrs 9 mins
Moonrise: 7:48 AM
Moon Transit: 1:36 PM
Moonset: 7:13 PM
Moon Phase: New
Moon Illumination: 2.9%

Best Times for Fishing or Hunting

Major Periods

12:30 AM - 3:00 AM
1:06 PM - 3:36 PM

Minor Periods

6:43 PM - 8:13 PM
7:18 AM - 8:48 AM

Action Rating: 5 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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