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: 51°F
L: 37°F

Mon
H: 51°F
L: 35°F

Tue
H: 39°F
L: 34°F

Wed
H: 42°F
L: 34°F

Thu
H: 48°F
L: 33°F
Air Quality
Nitrogen Dioxide: 5.15 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 62 μg/m3
Astronomical
Sun Transit: 1:08 PM
Sunset: 7:52 PM
Daylight: 13 hrs 26 mins
Moon Transit: 9:16 AM
Moonset: 2:17 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%
Best Times for Fishing or Hunting
Major Periods
8:46 AM - 11:16 AM8:53 PM - 11:23 PM
Minor Periods
1:47 PM - 3:17 PM3:56 AM - 5:26 AM
Action Rating: 2 out of 5
Flood Watch issued April 12 at 3:16AM CDT until April 15 at 7:00AM CDT by NWS Duluth MN
Effective: Sun April 12, 2026, 3:16 AM
Expires: Mon April 13, 2026, 3:30 AM
Heavy rain on top of the existing snowpack may increase the rate of snowmelt. The resultant runoff may cause water levels in area rivers to increase and flooding is possible. * WHAT...Flooding caused by rain and snowmelt continues to be possible. * WHERE...In Wisconsin, Ashland, Bayfield and Iron Counties. This includes the Tribal Lands of the Red Cliff Band, the northwestern county of the Lac du Flambeau Band and the Bad River Reservation. Other locations including the Apostle Islands National Lakeshore and Madeline Island. * WHEN...Through Wednesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Around 1 to 3 inches of rain is expected to fall over several inches of lingering snowpack along the South Shore of Lake Superior. Areas of minor flooding are possible in the Bayfield Peninsula and east over northern Ashland and Iron counties. - Flood safety information can be found at www.weather.gov/safety/flood.
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Flood Watch issued April 12 at 3:35PM CDT until April 15 at 7:00AM CDT by NWS Duluth MN
Effective: Sun April 12, 2026, 3:35 PM
Expires: Mon April 13, 2026, 7:00 AM
Heavy rain on top of the existing snowpack may increase the rate of snowmelt. The resultant runoff may cause water levels in area rivers to increase and flooding is possible. * WHAT...Flooding caused by rain and snowmelt continues to be possible. * WHERE...In Wisconsin, Ashland, Bayfield and Iron Counties. This includes the Tribal Lands of the Bad River Reservation, the northwestern county of the Lac du Flambeau Band and the Red Cliff Band. Other locations including Madeline Island and the Apostle Islands National Lakeshore. * WHEN...Through Wednesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Around 1 to 3 inches of rain is expected to fall over several inches of lingering snowpack along the South Shore of Lake Superior. Areas of minor flooding are possible in the Bayfield Peninsula and east over northern Ashland and Iron counties. - Flood safety information can be found at www.weather.gov/safety/flood.
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.16 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 83 μg/m3
Astronomical
Sun Transit: 1:08 PM
Sunset: 7:52 PM
Daylight: 13 hrs 26 mins
Moon Transit: 9:16 AM
Moonset: 2:17 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%
Best Times for Fishing or Hunting
Major Periods
8:46 AM - 11:16 AM8:53 PM - 11:23 PM
Minor Periods
1:47 PM - 3:17 PM3:56 AM - 5:26 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.3 μg/m3
Sulphur Dioxide: 1.87 μg/m3
Ozone: 71.12 μg/m3
Astronomical
Sun Transit: 1:08 PM
Sunset: 7:54 PM
Daylight: 13 hrs 30 mins
Moon Transit: 10:02 AM
Moonset: 3:31 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:32 AM - 12:02 AM
Minor Periods
3:01 PM - 4:31 PM4:16 AM - 5:46 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 88.36 μg/m3
Astronomical
Sun Transit: 1:08 PM
Sunset: 7:55 PM
Daylight: 13 hrs 33 mins
Moon Transit: 10:47 AM
Moonset: 4:47 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM10:17 AM - 12:47 AM
Minor Periods
4:17 PM - 5:47 PM4:33 AM - 6:03 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.49 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 83.56 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 7:56 PM
Daylight: 13 hrs 36 mins
Moon Transit: 10:33 AM
Moonset: 6:05 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%
Best Times for Fishing or Hunting
Major Periods
10:03 AM - 12:33 AM10:03 AM - 12:33 AM
Minor Periods
5:35 PM - 7:05 PM4:50 AM - 6:20 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.57 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 76.08 μg/m3
Astronomical
Sun Transit: 1:07 PM
Sunset: 7:58 PM
Daylight: 13 hrs 39 mins
Moon Transit: 12:23 AM
Moonset: 7:25 PM
Moon Phase: New
Moon Illumination: 0.8%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM11:53 AM - 2:23 PM
Minor Periods
6:55 PM - 8:25 PM5:08 AM - 6:38 AM
Action Rating: 5 out of 5
