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

Wed
H: 33°F
L: 26°F

Thu
H: 28°F
L: 26°F

Fri
H: 32°F
L: 21°F

Sat
H: 33°F
L: 25°F

Sun
H: 35°F
L: 15°F
Air Quality
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 91 μg/m3
Astronomical
Sun Transit: 1:11 PM
Sunset: 7:37 PM
Daylight: 12 hrs 50 mins
Moon Transit: 12:31 AM
Moonset: 6:24 AM
Moon Phase: Full
Moon Illumination: 99.8%
Best Times for Fishing or Hunting
Major Periods
12:01 AM - 2:31 AM12:06 AM - 2:36 PM
Minor Periods
7:05 PM - 8:35 PM5:54 AM - 7:24 AM
Action Rating: 3 out of 5
Winter Storm Watch issued March 31 at 2:24PM CDT until April 3 at 1:00AM CDT by NWS Duluth MN
Effective: Tue March 31, 2026, 2:24 PM
Expires: Wed April 1, 2026, 2:30 AM
* WHAT...Heavy mixed precipitation possible. Total snow and sleet accumulations between 4 and 9 inches except between 7 and 10 inches for the higher terrain of the North Shore and ice accumulations around one tenth of an inch possible. Winds could gust as high as 35 mph. * WHERE...In Minnesota, Pine, Carlton, South and Central St. Louis, Cook and Lake Counties. In Wisconsin, Ashland, Bayfield, Douglas, and Iron Counties. This includes the Tribal Lands of the Red Cliff Band, the Bois Forte Band, Lake Vermilion area, the Fond du Lac Band, the Grand Portage Reservation, the Bad River Reservation, the northwestern area of the Lac du Flambeau Band and the Mille Lacs Band, Hinckley and, Lena Lake areas. Other locations including the Apostle Islands National Lakeshore and Madeline Island. This also includes the Boundary Waters eastern and central area. * WHEN...From Wednesday evening through late Thursday night. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Thursday morning and evening commutes.
Monitor the latest forecasts for updates on this situation.
Winter Weather Advisory issued April 1 at 1:13AM CDT until April 3 at 7:00AM CDT by NWS Duluth MN
Effective: Wed April 1, 2026, 1:13 AM
Expires: Wed April 1, 2026, 1:15 PM
* WHAT...Mixed precipitation expected. Total snow and sleet accumulations between 3 and 5 inches except between 4 and 6 inches for the higher terrain of the North Shore and ice accumulations around one tenth of an inch. Winds gusting as high as 35 mph. * WHERE...In Minnesota, Pine and Carlton and South St. Louis Counties. In Wisconsin, Douglas County. This includes the Tribal Lands of the Fond du Lac Band and the Mille Lacs Band, Hinckley and, Lena Lake areas. * WHEN...From 1 AM Thursday to 7 AM CDT Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Thursday morning and evening commutes. * ADDITIONAL DETAILS...Worst conditions will be closer to Lake Superior as strong winds off of the Lake will lead to higher snow totals and greater reductions in visibilities. The majority of the snowfall is expected to fall during the daytime hours. With the high sun angle and temperatures hovering just above freezing, snowfall will have a difficult time accumulating on warm surfaces leading to a slushy mess.
Slow down and use caution while traveling. In Minnesota, call 511 or visit www.511mn.org for Minnesota road information. In Wisconsin, call 511 or visit www.511wi.gov for Wisconsin road information.
Winter Weather Advisory issued April 1 at 1:13AM CDT until April 3 at 7:00AM CDT by NWS Duluth MN
Effective: Wed April 1, 2026, 1:13 AM
Expires: Wed April 1, 2026, 1:15 PM
* WHAT...Mixed precipitation expected. Total snow and sleet accumulations between 3 and 5 inches except between 5 and 7 inches for northern Bayfield County and between 3 and 5 inches for northern Iron County and ice accumulations around one quarter of an inch. Winds gusting as high as 35 mph. * WHERE...Ashland, Bayfield, and Iron Counties. This includes the Tribal Lands of the northwestern area of the Lac du Flambeau Band, the Bad River Reservation and the Red Cliff Band. Other locations including Madeline Island and the Apostle Islands National Lakeshore. * WHEN...From 1 AM Thursday to 7 AM CDT Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Thursday morning and evening commutes. * ADDITIONAL DETAILS...The majority of the snowfall is expected to fall during the daytime hours. With the high sun angle and temperatures hovering just above freezing, snowfall will have a difficult time accumulating on warm surfaces leading to a slushy mess.
Slow down and use caution while traveling. Call 511 or visit www.511wi.gov for Wisconsin road information.
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.79 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 95.08 μg/m3
Astronomical
Sun Transit: 1:11 PM
Sunset: 7:37 PM
Daylight: 12 hrs 50 mins
Moon Transit: 12:31 AM
Moonset: 6:24 AM
Moon Phase: Full
Moon Illumination: 99.8%
Best Times for Fishing or Hunting
Major Periods
12:01 AM - 2:31 AM12:06 AM - 2:36 PM
Minor Periods
7:05 PM - 8:35 PM5:54 AM - 7:24 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.73 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 97 μg/m3
Astronomical
Sun Transit: 1:11 PM
Sunset: 7:38 PM
Daylight: 12 hrs 53 mins
Moon Transit: 1:13 AM
Moonset: 6:40 AM
Moon Phase: Full
Moon Illumination: 99.5%
Best Times for Fishing or Hunting
Major Periods
12:43 AM - 3:13 AM12:49 AM - 3:19 PM
Minor Periods
8:16 PM - 9:46 PM6:10 AM - 7:40 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 101.12 μg/m3
Astronomical
Sun Transit: 1:11 PM
Sunset: 7:40 PM
Daylight: 12 hrs 57 mins
Moon Transit: 1:56 AM
Moonset: 6:57 AM
Moon Phase: Full
Moon Illumination: 96.6%
Best Times for Fishing or Hunting
Major Periods
1:26 AM - 3:56 AM1:32 PM - 4:02 PM
Minor Periods
9:26 PM - 10:56 PM6:27 AM - 7:57 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.6 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 97.84 μg/m3
Astronomical
Sun Transit: 1:10 PM
Sunset: 7:41 PM
Daylight: 13 hrs mins
Moon Transit: 2:41 AM
Moonset: 7:18 AM
Moon Phase: Full
Moon Illumination: 91.3%
Best Times for Fishing or Hunting
Major Periods
2:11 AM - 4:41 AM2:18 PM - 4:48 PM
Minor Periods
12:00 AM - 12:00 AM6:48 AM - 8:18 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.09 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 95.46 μg/m3
Astronomical
Sun Transit: 1:10 PM
Sunset: 7:43 PM
Daylight: 13 hrs 3 mins
Moon Transit: 3:27 AM
Moonset: 7:43 AM
Moon Phase: Waning Gibbous
Moon Illumination: 83.9%
Best Times for Fishing or Hunting
Major Periods
2:57 AM - 5:27 AM3:05 PM - 5:35 PM
Minor Periods
7:13 AM - 8:43 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
