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

Fri
H: 34°F
L: 29°F

Sat
H: 44°F
L: 27°F

Sun
H: 48°F
L: 32°F

Mon
H: 40°F
L: 27°F

Tue
H: 26°F
L: 23°F
Air Quality
Nitrogen Dioxide: 3.35 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 67 μg/m3
Astronomical
Sun Transit: 12:19 AM
Sunset: 6:01 PM
Daylight: 11 hrs 23 mins
Moon Transit: 2:19 AM
Moonset: 7:34 AM
Moon Phase: Waning Gibbous
Moon Illumination: 87.6%
Best Times for Fishing or Hunting
Major Periods
1:49 AM - 4:19 AM1:54 PM - 4:24 PM
Minor Periods
9:33 PM - 11:03 PM7:04 AM - 8:34 AM
Action Rating: 3 out of 5
Winter Weather Advisory issued March 6 at 11:31AM CST until March 6 at 1:00PM CST by NWS Duluth MN
Effective: Fri March 6, 2026, 11:31 AM
Expires: Fri March 6, 2026, 11:45 PM
* WHAT...For the first Winter Weather Advisory, freezing drizzle. For the second Winter Weather Advisory, mixed precipitation expected. Total snow accumulations up to one inch and ice accumulations up to 0.10". * WHERE...Carlton and South St. Louis, Southern Cook and Southern Lake Counties. This includes the Tribal Lands of the Fond du Lac Band and the Grand Portage Reservation. * WHEN...For the first Winter Weather Advisory, until 1 PM CST this afternoon. For the second Winter Weather Advisory, from 4 PM this afternoon to 3 AM CST Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute. Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...For this evening, temperatures will fall below freezing in the west first and transition to below freezing eastward through the evening.
Slow down and use caution while traveling. Call 511 or visit www.511mn.org for Minnesota road information.
Winter Weather Advisory issued March 6 at 11:31AM CST until March 7 at 3:00AM CST by NWS Duluth MN
Effective: Fri March 6, 2026, 11:31 AM
Expires: Fri March 6, 2026, 11:45 PM
* WHAT...For the first Winter Weather Advisory, freezing drizzle. For the second Winter Weather Advisory, mixed precipitation expected. Total snow accumulations up to one inch and ice accumulations up to 0.10". * WHERE...Carlton and South St. Louis, Southern Cook and Southern Lake Counties. This includes the Tribal Lands of the Fond du Lac Band and the Grand Portage Reservation. * WHEN...For the first Winter Weather Advisory, until 1 PM CST this afternoon. For the second Winter Weather Advisory, from 4 PM this afternoon to 3 AM CST Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute. Roads, and especially bridges and overpasses, will likely become slick and hazardous. * ADDITIONAL DETAILS...For this evening, temperatures will fall below freezing in the west first and transition to below freezing eastward through the evening.
Slow down and use caution while traveling. Call 511 or visit www.511mn.org for Minnesota road information.
Dense Fog Advisory issued March 6 at 11:10AM CST until March 6 at 9:00PM CST by NWS Duluth MN
Effective: Fri March 6, 2026, 11:10 AM
Expires: Fri March 6, 2026, 9:00 PM
* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Carlton and South St. Louis, Southern Cook and Southern Lake Counties. This includes the Tribal Lands of the Fond du Lac Band and the Grand Portage Reservation. * WHEN...Until 9 PM CST this evening. * IMPACTS...Low visibility could make driving conditions hazardous. In areas where temperatures are near or below freezing, the fog could result in icy roads, sidewalks, and other surfaces. * ADDITIONAL DETAILS...Temperatures will rise above freezing after 1 PM this afternoon ending the freezing fog threat.
If driving, slow down, use your low-beam headlights and fog lights, and leave plenty of distance ahead of you.
Winter Weather Advisory issued March 6 at 1:08PM CST until March 7 at 3:00AM CST by NWS Duluth MN
Effective: Fri March 6, 2026, 1:08 PM
Expires: Sat March 7, 2026, 1:15 AM
* WHAT...Mixed precipitation expected. Total snow accumulations up to one inch and ice accumulations around a light glaze. * WHERE...Carlton and South St. Louis, Southern Cook and Southern Lake Counties. This includes the Tribal Lands of the Fond du Lac Band and the Grand Portage Reservation. * WHEN...Until 3 AM CST Saturday. * IMPACTS...Roads, and especially bridges and overpasses, will likely become slick and hazardous. Plan on slippery road conditions. The hazardous conditions could impact the Friday evening commute. * ADDITIONAL DETAILS...For this evening, temperatures will fall below freezing in the west first and transition to below freezing eastward through the evening.
Slow down and use caution while traveling. Call 511 or visit www.511mn.org for Minnesota road information.
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.34 μg/m3
Sulphur Dioxide: 1.54 μg/m3
Ozone: 62.72 μg/m3
Astronomical
Sun Transit: 12:19 AM
Sunset: 6:01 PM
Daylight: 11 hrs 23 mins
Moon Transit: 2:19 AM
Moonset: 7:34 AM
Moon Phase: Waning Gibbous
Moon Illumination: 87.6%
Best Times for Fishing or Hunting
Major Periods
1:49 AM - 4:19 AM1:54 PM - 4:24 PM
Minor Periods
9:33 PM - 11:03 PM7:04 AM - 8:34 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.59 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 72.84 μg/m3
Astronomical
Sun Transit: 12:18 AM
Sunset: 6:02 PM
Daylight: 11 hrs 26 mins
Moon Transit: 3:02 AM
Moonset: 7:53 AM
Moon Phase: Waning Gibbous
Moon Illumination: 79.2%
Best Times for Fishing or Hunting
Major Periods
2:32 AM - 5:02 AM2:38 PM - 5:08 PM
Minor Periods
12:00 AM - 12:00 AM7:23 AM - 8:53 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.53 μg/m3
Sulphur Dioxide: 2.03 μg/m3
Ozone: 78.72 μg/m3
Astronomical
Sun Transit: 12:18 AM
Sunset: 6:04 PM
Daylight: 11 hrs 29 mins
Moon Transit: 3:47 AM
Moonset: 8:15 AM
Moon Phase: Waning Gibbous
Moon Illumination: 69.3%
Best Times for Fishing or Hunting
Major Periods
3:17 AM - 5:47 AM3:24 PM - 5:54 PM
Minor Periods
7:45 AM - 9:15 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.97 μg/m3
Sulphur Dioxide: 1.79 μg/m3
Ozone: 87.08 μg/m3
Astronomical
Sun Transit: 12:00 AM
Sunset: 6:05 PM
Daylight: 11 hrs 33 mins
Moon Transit: 4:35 AM
Moonset: 8:42 AM
Moon Phase: Waning Gibbous
Moon Illumination: 58.5%
Best Times for Fishing or Hunting
Major Periods
4:05 AM - 6:35 AM4:13 PM - 6:43 PM
Minor Periods
8:12 AM - 9:42 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.58 μg/m3
Sulphur Dioxide: 1.73 μg/m3
Ozone: 82.5 μg/m3
Astronomical
Sun Transit: 12:00 AM
Sunset: 6:07 PM
Daylight: 11 hrs 36 mins
Moon Transit: 5:24 AM
Moonset: 9:17 AM
Moon Phase: Last Quarter
Moon Illumination: 47.2%
Best Times for Fishing or Hunting
Major Periods
4:54 AM - 7:24 AM5:03 PM - 7:33 PM
Minor Periods
8:47 AM - 10:17 AM12:58 AM - 2:28 AM
Action Rating: 2 out of 5
