Water Temperature of Lake Superior in Duluth, MN

Current Water Temperature

63.0°F

Measurement Time: Saturday, September 16, 2023, 12:00 AM CDT

Temperature Locations

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Local Points of Interest

Lakewood, MN

Lake Superior

Station 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

32.7°F
Partly cloudy
Partly cloudy
26.7°F
27.2°F
74%
NNW 6.5 mph
10 mph
19°F
18.2°F
0 in
75%
9 mi
1024 mbar
0

Five Day Weather Forecast

Moderate or heavy snow showers
Wed
H: 33°F
L: 26°F
Blowing snow
Thu
H: 28°F
L: 26°F
Moderate or heavy snow showers
Fri
H: 32°F
L: 21°F
Heavy snow
Sat
H: 33°F
L: 25°F
Partly Cloudy
Sun
H: 35°F
L: 15°F

Air Quality

AQI: 1 - Good
PM2.5: 1.25 μg/m3
PM10: 1.35 μg/m3
Carbon Monoxide: 173.85 μg/m3
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 91 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:11 PM
Sunset: 7:37 PM
Daylight: 12 hrs 50 mins
Moonrise: 7:35 PM
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 AM
12:06 AM - 2:36 PM

Minor Periods

7:05 PM - 8:35 PM
5:54 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.


Wednesday, April 1, 2026

Weather Forecast

Moderate or heavy snow showers
33.3°F
25.5°F
29.1°F
78%
0.62 in
65%
14%
18.8 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 1.48 μg/m3
PM10: 1.61 μg/m3
Carbon Monoxide: 175.01 μg/m3
Nitrogen Dioxide: 1.79 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 95.08 μg/m3

Astronomical

Sunrise: 6:47 AM
Sun Transit: 1:11 PM
Sunset: 7:37 PM
Daylight: 12 hrs 50 mins
Moonrise: 7:35 PM
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 AM
12:06 AM - 2:36 PM

Minor Periods

7:05 PM - 8:35 PM
5:54 AM - 7:24 AM

Action Rating: 3 out of 5

Thursday, April 2, 2026

Weather Forecast

Blowing snow
28.4°F
26.2°F
27.5°F
92%
2.45 in
64%
79%
25.9 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.73 μg/m3
PM10: 2.02 μg/m3
Carbon Monoxide: 158.89 μg/m3
Nitrogen Dioxide: 1.73 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 97 μg/m3

Astronomical

Sunrise: 6:45 AM
Sun Transit: 1:11 PM
Sunset: 7:38 PM
Daylight: 12 hrs 53 mins
Moonrise: 8:46 PM
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 AM
12:49 AM - 3:19 PM

Minor Periods

8:16 PM - 9:46 PM
6:10 AM - 7:40 AM

Action Rating: 3 out of 5

Friday, April 3, 2026

Weather Forecast

Moderate or heavy snow showers
31.6°F
20.8°F
27.4°F
88%
0.55 in
60%
27%
15.4 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 1.26 μg/m3
PM10: 1.31 μg/m3
Carbon Monoxide: 153.97 μg/m3
Nitrogen Dioxide: 1.7 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 101.12 μg/m3

Astronomical

Sunrise: 6:43 AM
Sun Transit: 1:11 PM
Sunset: 7:40 PM
Daylight: 12 hrs 57 mins
Moonrise: 9:56 PM
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 AM
1:32 PM - 4:02 PM

Minor Periods

9:26 PM - 10:56 PM
6:27 AM - 7:57 AM

Action Rating: 4 out of 5

Saturday, April 4, 2026

Weather Forecast

Heavy snow
32.5°F
25°F
29.7°F
94%
1.34 in
85%
65%
17.9 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 1.28 μg/m3
PM10: 1.36 μg/m3
Carbon Monoxide: 153.56 μg/m3
Nitrogen Dioxide: 1.6 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 97.84 μg/m3

Astronomical

Sunrise: 6:41 AM
Sun Transit: 1:10 PM
Sunset: 7:41 PM
Daylight: 13 hrs mins
Moonrise: 11:06 PM
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 AM
2:18 PM - 4:48 PM

Minor Periods

12:00 AM - 12:00 AM
6:48 AM - 8:18 AM

Action Rating: 4 out of 5

Sunday, April 5, 2026

Weather Forecast

Partly Cloudy
34.9°F
14.5°F
27.4°F
89%
0 in
0%
12%
13.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.44 μg/m3
PM10: 1.63 μg/m3
Carbon Monoxide: 159.66 μg/m3
Nitrogen Dioxide: 2.09 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 95.46 μg/m3

Astronomical

Sunrise: 6:39 AM
Sun Transit: 1:10 PM
Sunset: 7:43 PM
Daylight: 13 hrs 3 mins
Moonrise: 12:06 AM
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 AM
3:05 PM - 5:35 PM

Minor Periods

7:13 AM - 8:43 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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