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

30.9°F
Mist
Mist
20.7°F
30.2°F
100%
ENE 13.6 mph
15.8 mph
19°F
30.5°F
0 in
100%
0 mi
1018 mbar
1

Five Day Weather Forecast

Light freezing rain
Thu
H: 32°F
L: 24°F
Freezing fog
Fri
H: 34°F
L: 25°F
Partly Cloudy
Sat
H: 42°F
L: 27°F
Cloudy
Sun
H: 48°F
L: 30°F
Patchy rain nearby
Mon
H: 47°F
L: 31°F

Air Quality

AQI: 1 - Good
PM2.5: 1.45 μg/m3
PM10: 1.45 μg/m3
Carbon Monoxide: 188.85 μg/m3
Nitrogen Dioxide: 2.55 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 82 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 12:19 AM
Sunset: 5:59 PM
Daylight: 11 hrs 19 mins
Moonrise: 8:53 PM
Moon Transit: 1:36 AM
Moonset: 7:18 AM
Moon Phase: Full
Moon Illumination: 94.0%

Best Times for Fishing or Hunting

Major Periods

1:06 AM - 3:36 AM
1:11 PM - 3:41 PM

Minor Periods

8:23 PM - 9:53 PM
6:48 AM - 8:18 AM

Action Rating: 4 out of 5

Dense Fog Advisory issued March 4 at 6:05PM CST until March 5 at 12:00PM CST by NWS Duluth MN

Effective: Wed March 4, 2026, 6:05 PM
Expires: Thu March 5, 2026, 12:00 PM

* WHAT...Visibility less than one quarter mile in dense fog. * WHERE...In Minnesota, Carlton and South St. Louis Counties. In Wisconsin, Douglas County. This includes the Tribal Lands of the Fond du Lac Band. * WHEN...Until noon CST Thursday. * IMPACTS...Low visibility could make driving conditions hazardous.

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 4 at 9:13PM CST until March 5 at 12:00PM CST by NWS Duluth MN

Effective: Wed March 4, 2026, 9:13 PM
Expires: Thu March 5, 2026, 12:00 PM

* WHAT...Freezing drizzle. Ice accumulation up to five hundredths of an inch. * WHERE...In Minnesota, Carlton and South St. Louis, Southern Cook and Southern Lake Counties. In Wisconsin, Douglas County. This includes the Tribal Lands of the Grand Portage Reservation and the Fond du Lac Band. * WHEN...Until noon CST Thursday. * IMPACTS...Very slippery sidewalks, roads and bridges are possible. The hazardous conditions could impact the Thursday morning commute.

Slow down and use caution while traveling. Prepare for possible power outages. 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. Use caution while traveling, especially along Highway 61 on the North Shore.


Winter Weather Advisory issued March 5 at 3:09AM CST until March 5 at 12:00PM CST by NWS Duluth MN

Effective: Thu March 5, 2026, 3:09 AM
Expires: Thu March 5, 2026, 12:00 PM

* WHAT...Freezing drizzle. Ice accumulation up to five hundredths of an inch. * WHERE...In Minnesota, Carlton and South St. Louis, Southern Cook and Southern Lake Counties. In Wisconsin, Douglas County. This includes the Tribal Lands of the Grand Portage Reservation and the Fond du Lac Band. * WHEN...Until noon CST today. * IMPACTS...Very slippery sidewalks, roads and bridges are possible. The hazardous conditions could impact the Thursday morning commute. * ADDITIONAL DETAILS...Advisory may need to be extended through this evening depending on temperature trends and onshore flow from Lake Superior.

Slow down and use caution while traveling. Prepare for possible power outages. 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. Use caution while traveling, especially along Highway 61 on the North Shore.


Dense Fog Advisory issued March 5 at 3:07AM CST until March 5 at 12:00PM CST by NWS Duluth MN

Effective: Thu March 5, 2026, 3:07 AM
Expires: Thu March 5, 2026, 12:00 PM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Minnesota, Carlton and South St. Louis, Southern Cook and Southern Lake Counties. In Wisconsin, Douglas County. This includes the Tribal Lands of the Grand Portage Reservation and the Fond du Lac Band. * WHEN...Until noon CST today. * IMPACTS...Low visibility could make driving conditions hazardous.

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 5 at 8:01AM CST until March 6 at 12:00AM CST by NWS Duluth MN

Effective: Thu March 5, 2026, 8:01 AM
Expires: Thu March 5, 2026, 8:15 PM

* WHAT...Freezing drizzle. Additional ice accumulations around one tenth of an inch. * WHERE...In Minnesota, Carlton and South St. Louis, Southern Cook and Southern Lake Counties. In Wisconsin, Bayfield and Douglas Counties. This includes the Tribal Lands of the Fond du Lac Band, the Red Cliff Band and the Grand Portage Reservation. Other locations including the Apostle Islands National Lakeshore. * WHEN...Until midnight CST tonight. * IMPACTS...Difficult travel conditions are possible. The hazardous conditions could impact the Thursday evening commute.

Slow down and use caution while traveling. Prepare for possible power outages. 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. Use caution while traveling, especially along Highway 61 on the North Shore.


Thursday, March 5, 2026

Weather Forecast

Light freezing rain
32.2°F
23.9°F
29.9°F
98%
0.01 in
63%
31%
15 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.7 μg/m3
PM10: 2.87 μg/m3
Carbon Monoxide: 192.61 μg/m3
Nitrogen Dioxide: 2.88 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 77.84 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 12:19 AM
Sunset: 5:59 PM
Daylight: 11 hrs 19 mins
Moonrise: 8:53 PM
Moon Transit: 1:36 AM
Moonset: 7:18 AM
Moon Phase: Full
Moon Illumination: 94.0%

Best Times for Fishing or Hunting

Major Periods

1:06 AM - 3:36 AM
1:11 PM - 3:41 PM

Minor Periods

8:23 PM - 9:53 PM
6:48 AM - 8:18 AM

Action Rating: 4 out of 5

Friday, March 6, 2026

Weather Forecast

Freezing fog
33.8°F
25°F
30.8°F
98%
0.16 in
65%
13%
7.6 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 8.02 μg/m3
PM10: 8.38 μg/m3
Carbon Monoxide: 217.77 μg/m3
Nitrogen Dioxide: 5.55 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 63.52 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 12:19 AM
Sunset: 6:01 PM
Daylight: 11 hrs 23 mins
Moonrise: 10:03 PM
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 AM
1:54 PM - 4:24 PM

Minor Periods

9:33 PM - 11:03 PM
7:04 AM - 8:34 AM

Action Rating: 3 out of 5

Saturday, March 7, 2026

Weather Forecast

Partly Cloudy
41.7°F
26.6°F
32.2°F
81%
0 in
0%
0%
14.1 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 2.97 μg/m3
PM10: 3.26 μg/m3
Carbon Monoxide: 203.97 μg/m3
Nitrogen Dioxide: 4.01 μg/m3
Sulphur Dioxide: 2.13 μg/m3
Ozone: 81.24 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 12:18 AM
Sunset: 6:02 PM
Daylight: 11 hrs 26 mins
Moonrise: 11:12 PM
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 AM
2:38 PM - 5:08 PM

Minor Periods

12:00 AM - 12:00 AM
7:23 AM - 8:53 AM

Action Rating: 2 out of 5

Sunday, March 8, 2026

Weather Forecast

Cloudy
47.7°F
29.6°F
36.6°F
82%
0 in
0%
0%
18.1 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 3.18 μg/m3
PM10: 3.68 μg/m3
Carbon Monoxide: 176.76 μg/m3
Nitrogen Dioxide: 3.49 μg/m3
Sulphur Dioxide: 2.05 μg/m3
Ozone: 82.12 μg/m3

Astronomical

Sunrise: 6:34 AM
Sun Transit: 12:18 AM
Sunset: 6:04 PM
Daylight: 11 hrs 29 mins
Moonrise: 12:12 AM
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 AM
3:24 PM - 5:54 PM

Minor Periods

7:45 AM - 9:15 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, March 9, 2026

Weather Forecast

Patchy rain nearby
46.9°F
31.4°F
39.6°F
74%
0.01 in
86%
0%
19.2 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 2.87 μg/m3
PM10: 3.08 μg/m3
Carbon Monoxide: 157.71 μg/m3
Nitrogen Dioxide: 4.98 μg/m3
Sulphur Dioxide: 2.27 μg/m3
Ozone: 70.75 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 12:00 AM
Sunset: 6:05 PM
Daylight: 11 hrs 33 mins
Moonrise: 12:22 AM
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 AM
4:13 PM - 6:43 PM

Minor Periods

8:12 AM - 9:42 AM
12:00 AM - 12:00 AM

Action Rating: 3 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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