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

34.2°F
Sunny
Sunny
23.7°F
37.2°F
80%
ENE 16.8 mph
21.2 mph
27°F
31.7°F
0 in
0%
9 mi
1011 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 50°F
L: 29°F
Moderate or heavy snow showers
Tue
H: 34°F
L: 26°F
Moderate or heavy snow showers
Wed
H: 29°F
L: 27°F
Blowing snow
Thu
H: 28°F
L: 26°F
Light snow
Fri
H: 31°F
L: 25°F

Air Quality

AQI: 1 - Good
PM2.5: 7.05 μg/m3
PM10: 8.25 μg/m3
Carbon Monoxide: 184.85 μg/m3
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 95 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:12 PM
Sunset: 7:34 PM
Daylight: 12 hrs 43 mins
Moonrise: 5:14 PM
Moon Transit: 11:48 PM
Moonset: 5:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%

Best Times for Fishing or Hunting

Major Periods

10:40 AM - 1:10 PM
12:00 AM - 12:00 AM

Minor Periods

4:44 PM - 6:14 PM
5:22 AM - 6:52 AM

Action Rating: 3 out of 5

Winter Weather Advisory issued March 30 at 11:09AM CDT until March 31 at 1:00PM CDT by NWS Duluth MN

Effective: Mon March 30, 2026, 11:09 AM
Expires: Tue March 31, 2026, 1:00 AM

* WHAT...Mixed precipitation expected. Total snow accumulations up to one inch and ice accumulations around one tenth of an inch. * WHERE...In Minnesota, Crow Wing, Aitkin, Pine, North Cass, Itasca, Carlton, South and Central St. Louis, and Southern Lake Counties. In Wisconsin, Ashland, Bayfield, Douglas, and Iron Counties. This includes the Tribal Lands of the Fond du Lac Band, the northwestern area of the Lac du Flambeau Band, the Bad River Reservation, the Red Cliff Band, the Mille Lacs Band, Hinckley, Lena Lake, East Lake and, Big Sandy Lake areas and the Bois Forte Band, Lake Vermilion and, Deer Creek areas. Other locations including Madeline Island and the Apostle Islands National Lakeshore. * WHEN...From 1 AM to 1 PM CDT Tuesday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions could impact the Tuesday morning commute.

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.
Monday, March 30, 2026

Weather Forecast

Sunny
49.8°F
28.8°F
36.6°F
61%
0 in
0%
0%
18.1 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 9.66 μg/m3
PM10: 11.1 μg/m3
Carbon Monoxide: 234.41 μg/m3
Nitrogen Dioxide: 5.1 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 83.68 μg/m3

Astronomical

Sunrise: 6:51 AM
Sun Transit: 1:12 PM
Sunset: 7:34 PM
Daylight: 12 hrs 43 mins
Moonrise: 5:14 PM
Moon Transit: 11:48 PM
Moonset: 5:52 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 93.0%

Best Times for Fishing or Hunting

Major Periods

10:40 AM - 1:10 PM
12:00 AM - 12:00 AM

Minor Periods

4:44 PM - 6:14 PM
5:22 AM - 6:52 AM

Action Rating: 3 out of 5

Tuesday, March 31, 2026

Weather Forecast

Moderate or heavy snow showers
33.8°F
25.7°F
31.3°F
89%
0.12 in
66%
12%
19.5 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 5.1 μg/m3
PM10: 6.23 μg/m3
Carbon Monoxide: 184.29 μg/m3
Nitrogen Dioxide: 2.01 μg/m3
Sulphur Dioxide: 1.39 μg/m3
Ozone: 97.28 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 1:11 PM
Sunset: 7:36 PM
Daylight: 12 hrs 47 mins
Moonrise: 6:26 PM
Moon Transit: 12:00 AM
Moonset: 6:09 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:24 AM - 1:54 PM

Minor Periods

5:56 PM - 7:26 PM
5:39 AM - 7:09 AM

Action Rating: 4 out of 5

Wednesday, April 1, 2026

Weather Forecast

Moderate or heavy snow showers
28.9°F
27°F
27.6°F
92%
0.47 in
88%
19%
18.3 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 1.39 μg/m3
PM10: 1.55 μg/m3
Carbon Monoxide: 166.93 μg/m3
Nitrogen Dioxide: 1.59 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 93.48 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
28.2°F
25.9°F
27.3°F
93%
2.78 in
75%
69%
22.1 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 1.59 μg/m3
PM10: 1.96 μg/m3
Carbon Monoxide: 154.35 μg/m3
Nitrogen Dioxide: 1.54 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 93.68 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

Light snow
30.8°F
25°F
28.2°F
91%
0.08 in
71%
72%
16.6 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 1.67 μg/m3
PM10: 1.9 μg/m3
Carbon Monoxide: 153.33 μg/m3
Nitrogen Dioxide: 1.35 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 101 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

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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