Water Temperature of Lake Superior in Duluth, MN
Current Water Temperature
Measurement Time: Saturday, September 16, 2023, 12:00 AM CDT
Temperature Locations
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Local Points of Interest
Lakewood, MNStation 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

Five Day Weather Forecast

Sun
H: 48°F
L: 40°F

Mon
H: 60°F
L: 40°F

Tue
H: 44°F
L: 40°F

Wed
H: 54°F
L: 39°F

Thu
H: 59°F
L: 36°F
Air Quality
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 58 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:39 PM
Daylight: 15 hrs 9 mins
Moon Transit: 1:58 PM
Moonset: 10:36 PM
Moon Phase: New
Moon Illumination: 0.2%
Best Times for Fishing or Hunting
Major Periods
12:39 AM - 3:09 AM1:28 PM - 3:58 PM
Minor Periods
10:06 PM - 11:36 PM5:01 AM - 6:31 AM
Action Rating: 4 out of 5
Special Weather Statement issued May 16 at 9:57AM CDT by NWS Duluth MN
Effective: Sat May 16, 2026, 9:57 AM
Expires: Sat May 16, 2026, 9:00 PM
Dry conditions and gusty winds will lead to near-critical fire weather conditions Saturday. West winds of 5 to 15 mph with gusts of 20 to 25 mph are forecast, gradually turning northwest this afternoon as a cold front moves through the area. Minimum relative humidity values of 18 to 26 percent are also expected. Together, these conditions could lead to the rapid spread of fires. Check burning restrictions and fire danger before burning. For more information on burning restrictions for Wisconsin, see apps.dnr.wi.gov/wisburn.
Red Flag Warning issued May 16 at 9:54AM CDT until May 16 at 9:00PM CDT by NWS Duluth MN
Effective: Sat May 16, 2026, 9:54 AM
Expires: Sat May 16, 2026, 9:00 PM
The National Weather Service in Duluth has issued a Red Flag Warning for wind and low relative humidity, which is in effect until 9 PM CDT this evening. * AFFECTED AREA...In Minnesota, South Cass, Crow Wing, Northern Aitkin, South Aitkin, Carlton and South St. Louis and Pine. * WINDS...Northwest 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 22 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.86 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 63.68 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:39 PM
Daylight: 15 hrs 9 mins
Moon Transit: 1:58 PM
Moonset: 10:36 PM
Moon Phase: New
Moon Illumination: 0.2%
Best Times for Fishing or Hunting
Major Periods
12:39 AM - 3:09 AM1:28 PM - 3:58 PM
Minor Periods
10:06 PM - 11:36 PM5:01 AM - 6:31 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.69 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 62.12 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:40 PM
Daylight: 15 hrs 11 mins
Moon Transit: 3:05 PM
Moonset: 11:45 PM
Moon Phase: New
Moon Illumination: 2.6%
Best Times for Fishing or Hunting
Major Periods
1:45 AM - 4:15 AM2:35 PM - 5:05 PM
Minor Periods
12:00 AM - 12:00 AM5:56 AM - 7:26 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.15 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 61.08 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:42 PM
Daylight: 15 hrs 14 mins
Moon Transit: 4:11 PM
Moonset: 12:45 AM
Moon Phase: Waxing Crescent
Moon Illumination: 7.4%
Best Times for Fishing or Hunting
Major Periods
2:52 AM - 5:22 AM3:41 PM - 6:11 PM
Minor Periods
7:05 AM - 8:35 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.59 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 74 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:43 PM
Daylight: 15 hrs 16 mins
Moon Transit: 5:13 PM
Moonset: 12:38 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%
Best Times for Fishing or Hunting
Major Periods
3:56 AM - 6:26 AM4:43 PM - 7:13 PM
Minor Periods
8:25 AM - 9:55 AM12:08 AM - 1:38 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 1:04 PM
Sunset: 8:44 PM
Daylight: 15 hrs 18 mins
Moon Transit: 6:09 PM
Moonset: 1:15 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%
Best Times for Fishing or Hunting
Major Periods
4:55 AM - 7:25 AM5:39 PM - 8:09 PM
Minor Periods
9:48 AM - 11:18 AM12:45 AM - 2:15 AM
Action Rating: 2 out of 5
