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: 18°F
L: 7°F

Thu
H: 5°F
L: -17°F

Fri
H: -6°F
L: -20°F

Sat
H: 3°F
L: -17°F

Sun
H: 2°F
L: -13°F
Air Quality
Nitrogen Dioxide: 2.25 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 73 μg/m3
Astronomical
Sun Transit: 12:19 AM
Sunset: 4:55 PM
Daylight: 9 hrs 11 mins
Moon Transit: 2:39 PM
Moonset: 8:17 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%
Best Times for Fishing or Hunting
Major Periods
1:31 AM - 4:01 AM2:09 PM - 4:39 PM
Minor Periods
7:47 PM - 9:17 PM8:45 AM - 10:15 AM
Action Rating: 3 out of 5
Extreme Cold Watch issued January 21 at 2:13AM CST until January 24 at 12:00PM CST by NWS Duluth MN
Effective: Wed January 21, 2026, 2:13 AM
Expires: Wed January 21, 2026, 5:00 PM
* WHAT...Dangerously cold wind chills as low as 46 below zero possible. * WHERE...Price, Ashland, Bayfield, Burnett, Douglas, Iron, Sawyer, and Washburn Counties. This includes the Tribal Lands of the St. Croix Band in Burnett County, the Lac Courte Oreilles Reservation, the northwestern area of the Lac du Flambeau Band, the Red Cliff Band and the Bad River Reservation. Other locations including the Apostle Islands National Lakeshore and Madeline Island. * WHEN...From Thursday evening through Saturday morning. * IMPACTS...The dangerously cold wind chills as low as 45 below zero could cause frostbite on exposed skin in as little as 10 minutes. * ADDITIONAL DETAILS...Additional cold weather headlines will likely be needed for Sunday and Monday morning.
Dress in layers including a hat, face mask, and gloves if you must go outside. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.
Cold Weather Advisory issued January 21 at 2:13AM CST until January 22 at 6:00PM CST by NWS Duluth MN
Effective: Wed January 21, 2026, 2:13 AM
Expires: Wed January 21, 2026, 5:00 PM
* WHAT...For the Cold Weather Advisory, very cold wind chills as low as 35 below zero expected. For the Extreme Cold Watch, dangerously cold wind chills as low as 50 below zero possible. * WHERE...Crow Wing, Aitkin, Cass, South Itasca, and Carlton and South St. Louis Counties. This includes the Tribal Lands of the Fond du Lac Band and the Mille Lacs Band, Big Sandy Lake and, East Lake areas. * WHEN...For the Cold Weather Advisory, from midnight tonight to 6 PM CST Thursday. For the Extreme Cold Watch, from Thursday evening through Saturday morning. * IMPACTS...The dangerously cold wind chills as low as 50 below zero could cause frostbite on exposed skin in as little as 5 minutes. * ADDITIONAL DETAILS...Additional cold weather headlines will likely be needed for Sunday and Monday morning.
Dress in layers including a hat, face mask, and gloves if you must go outside. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.
Extreme Cold Watch issued January 21 at 2:13AM CST until January 24 at 12:00PM CST by NWS Duluth MN
Effective: Wed January 21, 2026, 2:13 AM
Expires: Wed January 21, 2026, 5:00 PM
* WHAT...For the Cold Weather Advisory, very cold wind chills as low as 35 below zero expected. For the Extreme Cold Watch, dangerously cold wind chills as low as 50 below zero possible. * WHERE...Crow Wing, Aitkin, Cass, South Itasca, and Carlton and South St. Louis Counties. This includes the Tribal Lands of the Fond du Lac Band and the Mille Lacs Band, Big Sandy Lake and, East Lake areas. * WHEN...For the Cold Weather Advisory, from midnight tonight to 6 PM CST Thursday. For the Extreme Cold Watch, from Thursday evening through Saturday morning. * IMPACTS...The dangerously cold wind chills as low as 50 below zero could cause frostbite on exposed skin in as little as 5 minutes. * ADDITIONAL DETAILS...Additional cold weather headlines will likely be needed for Sunday and Monday morning.
Dress in layers including a hat, face mask, and gloves if you must go outside. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.46 μg/m3
Sulphur Dioxide: 2.56 μg/m3
Ozone: 66.16 μg/m3
Astronomical
Sun Transit: 12:19 AM
Sunset: 4:55 PM
Daylight: 9 hrs 11 mins
Moon Transit: 2:39 PM
Moonset: 8:17 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%
Best Times for Fishing or Hunting
Major Periods
1:31 AM - 4:01 AM2:09 PM - 4:39 PM
Minor Periods
7:47 PM - 9:17 PM8:45 AM - 10:15 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.64 μg/m3
Sulphur Dioxide: 1.79 μg/m3
Ozone: 71.64 μg/m3
Astronomical
Sun Transit: 12:19 AM
Sunset: 4:56 PM
Daylight: 9 hrs 13 mins
Moon Transit: 12:00 AM
Moonset: 9:30 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM2:16 AM - 4:46 AM
Minor Periods
9:00 PM - 10:30 PM9:02 AM - 10:32 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.14 μg/m3
Sulphur Dioxide: 1.48 μg/m3
Ozone: 62.28 μg/m3
Astronomical
Sun Transit: 12:19 AM
Sunset: 4:58 PM
Daylight: 9 hrs 16 mins
Moon Transit: 8:54 AM
Moonset: 10:46 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%
Best Times for Fishing or Hunting
Major Periods
8:24 AM - 10:54 AM8:24 AM - 10:54 AM
Minor Periods
10:16 PM - 11:46 PM9:18 AM - 10:48 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.61 μg/m3
Sulphur Dioxide: 2.34 μg/m3
Ozone: 59.68 μg/m3
Astronomical
Sun Transit: 12:20 AM
Sunset: 4:59 PM
Daylight: 9 hrs 18 mins
Moon Transit: 4:55 PM
Moonset: 12:02 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%
Best Times for Fishing or Hunting
Major Periods
3:45 AM - 6:15 AM4:25 PM - 6:55 PM
Minor Periods
12:00 AM - 12:00 AM9:36 AM - 11:06 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 9.72 μg/m3
Sulphur Dioxide: 2.77 μg/m3
Ozone: 53.23 μg/m3
Astronomical
Sun Transit: 12:20 AM
Sunset: 5:01 PM
Daylight: 9 hrs 21 mins
Moon Transit: 5:44 PM
Moonset: 12:02 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%
Best Times for Fishing or Hunting
Major Periods
4:33 AM - 7:03 AM5:14 PM - 7:44 PM
Minor Periods
9:55 AM - 11:25 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
