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

80.8°F
Moderate rain at times
Conditions: Moderate rain at times
Humidity: 62%
Feels Like: 86.4°F
Wind: WSW 6.3 mph
Wind Gusts: 8.7 mph
Pressure: 29.89 in
Precipitation: 0.15 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 1.8

Five Day Weather Forecast

Moderate rain
Fri
H: 79°F
L: 66°F
Partly Cloudy
Sat
H: 67°F
L: 55°F
Overcast
Sun
H: 58°F
L: 53°F
Sunny
Mon
H: 69°F
L: 46°F
Sunny
Tue
H: 74°F
L: 52°F

Air Quality

AQI: 1 - Good
PM2.5: 12.95 μg/m3
PM10: 12.95 μg/m3
Carbon Monoxide: 331.15 μg/m3
Nitrogen Dioxide: 10.18 μg/m3
Sulphur Dioxide: 3.89 μg/m3
Ozone: 76 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 1:10 PM
Sunset: 8:05 PM
Daylight: 13 hrs 50 mins
Moonrise: 5:18 AM
Moon Transit: 12:49 AM
Moonset: 8:05 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:19 AM - 2:49 PM

Minor Periods

7:35 PM - 9:05 PM
4:48 AM - 6:18 AM

Action Rating: 4 out of 5

Severe Thunderstorm Warning issued August 22 at 1:25PM CDT until August 22 at 1:45PM CDT by NWS Duluth MN

Effective: Fri August 22, 2025, 1:25 PM
Expires: Fri August 22, 2025, 1:45 PM

At 125 PM CDT, a severe thunderstorm was located near Sanborn, or 33 miles north of Chippewa Flowage East, moving northeast at 30 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. This severe storm will be near... Sanborn around 130 PM CDT. Other locations in the path of this severe thunderstorm include Marengo.

For your protection move to an interior room on the lowest floor of a building.
Friday, August 22, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 71.5°F
Average Humidity: 84%
Chance of Rain: 69%
Wind: 11.9 mph
UV Index: 0.6

Air Quality

AQI: 1 - Good
PM2.5: 13.2 μg/m3
PM10: 13.65 μg/m3
Carbon Monoxide: 340.47 μg/m3
Nitrogen Dioxide: 7.98 μg/m3
Sulphur Dioxide: 3.52 μg/m3
Ozone: 89.32 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 1:10 PM
Sunset: 8:05 PM
Daylight: 13 hrs 50 mins
Moonrise: 5:18 AM
Moon Transit: 12:49 AM
Moonset: 8:05 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:19 AM - 2:49 PM

Minor Periods

7:35 PM - 9:05 PM
4:48 AM - 6:18 AM

Action Rating: 4 out of 5

Saturday, August 23, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 62.3°F
Average Humidity: 68%
Chance of Rain: 0%
Wind: 17 mph
UV Index: 1.2

Air Quality

AQI: 1 - Good
PM2.5: 5.76 μg/m3
PM10: 5.82 μg/m3
Carbon Monoxide: 284.83 μg/m3
Nitrogen Dioxide: 4.83 μg/m3
Sulphur Dioxide: 2.49 μg/m3
Ozone: 69.72 μg/m3

Astronomical

Sunrise: 6:16 AM
Sun Transit: 1:10 PM
Sunset: 8:04 PM
Daylight: 13 hrs 47 mins
Moonrise: 6:34 AM
Moon Transit: 1:35 PM
Moonset: 8:22 PM
Moon Phase: New
Moon Illumination: 1.4%

Best Times for Fishing or Hunting

Major Periods

12:26 AM - 2:56 AM
1:05 PM - 3:35 PM

Minor Periods

7:52 PM - 9:22 PM
6:04 AM - 7:34 AM

Action Rating: 5 out of 5

Sunday, August 24, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 56.2°F
Average Humidity: 73%
Chance of Rain: 0%
Wind: 15 mph
UV Index: 1

Air Quality

AQI: 1 - Good
PM2.5: 1.7 μg/m3
PM10: 1.72 μg/m3
Carbon Monoxide: 260.11 μg/m3
Nitrogen Dioxide: 3.2 μg/m3
Sulphur Dioxide: 1.7 μg/m3
Ozone: 59.24 μg/m3

Astronomical

Sunrise: 6:18 AM
Sun Transit: 1:10 PM
Sunset: 8:02 PM
Daylight: 13 hrs 44 mins
Moonrise: 7:45 AM
Moon Transit: 2:18 PM
Moonset: 8:38 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

1:11 AM - 3:41 AM
1:48 PM - 4:18 PM

Minor Periods

8:08 PM - 9:38 PM
7:15 AM - 8:45 AM

Action Rating: 4 out of 5

Monday, August 25, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 57.3°F
Average Humidity: 59%
Chance of Rain: 0%
Wind: 9.6 mph
UV Index: 1.5

Air Quality

AQI: 1 - Good
PM2.5: 3.54 μg/m3
PM10: 3.59 μg/m3
Carbon Monoxide: 263.51 μg/m3
Nitrogen Dioxide: 2.46 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 63.28 μg/m3

Astronomical

Sunrise: 6:19 AM
Sun Transit: 1:09 PM
Sunset: 8:00 PM
Daylight: 13 hrs 41 mins
Moonrise: 8:54 AM
Moon Transit: 3:00 PM
Moonset: 8:52 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

1:52 AM - 4:22 AM
2:30 PM - 5:00 PM

Minor Periods

8:22 PM - 9:52 PM
8:24 AM - 9:54 AM

Action Rating: 4 out of 5

Tuesday, August 26, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 62.7°F
Average Humidity: 49%
Chance of Rain: 0%
Wind: 8.3 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 5.66 μg/m3
PM10: 5.71 μg/m3
Carbon Monoxide: 285.47 μg/m3
Nitrogen Dioxide: 6.2 μg/m3
Sulphur Dioxide: 2.58 μg/m3
Ozone: 54.85 μg/m3

Astronomical

Sunrise: 6:20 AM
Sun Transit: 1:09 PM
Sunset: 7:58 PM
Daylight: 13 hrs 38 mins
Moonrise: 10:02 AM
Moon Transit: 3:39 PM
Moonset: 9:06 PM
Moon Phase: Waxing Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

2:33 AM - 5:03 AM
3:09 PM - 5:39 PM

Minor Periods

8:36 PM - 10:06 PM
9:32 AM - 11:02 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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