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

30.7°F
Overcast
Overcast
19.8°F
29.8°F
86%
ENE 15.4 mph
19.5 mph
18.8°F
26.4°F
0 in
100%
9 mi
1021 mbar
0

Five Day Weather Forecast

Blowing snow
Thu
H: 33°F
L: 24°F
Moderate or heavy snow showers
Fri
H: 31°F
L: 25°F
Fog
Sat
H: 35°F
L: 30°F
Light freezing rain
Sun
H: 35°F
L: 21°F
Light freezing rain
Mon
H: 35°F
L: 22°F

Air Quality

AQI: 1 - Good
PM2.5: 1.25 μg/m3
PM10: 1.35 μg/m3
Carbon Monoxide: 161.85 μg/m3
Nitrogen Dioxide: 1.65 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 96 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

Winter Weather Advisory issued April 1 at 12:23PM CDT until April 3 at 7:00AM CDT by NWS Duluth MN

Effective: Wed April 1, 2026, 12:23 PM
Expires: Thu April 2, 2026, 3:30 AM

* WHAT...Mixed precipitation expected. Total snow and sleet accumulations between 3 and 5 inches except between 5 and 7 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 Storm Watch issued April 1 at 1:59PM CDT until April 4 at 7:00AM CDT by NWS Duluth MN

Effective: Wed April 1, 2026, 1:59 PM
Expires: Thu April 2, 2026, 2:00 AM

* WHAT...For the Winter Weather Advisory, mixed precipitation expected. Total snow and sleet accumulations between 3 and 5 inches and ice accumulations around a light glaze. For the Winter Storm Watch, heavy mixed precipitation possible. Total snow and sleet accumulations up to two inches and ice accumulations between one tenth and two tenths of an inch possible. * WHERE...Douglas County. * WHEN...For the Winter Weather Advisory, from 1 AM Thursday to 7 AM CDT Friday. For the Winter Storm Watch, from Friday afternoon through Saturday morning. * IMPACTS...Plan on slippery road conditions. 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.

Monitor the latest forecasts for updates on this situation. 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 1:59PM CDT until April 3 at 7:00AM CDT by NWS Duluth MN

Effective: Wed April 1, 2026, 1:59 PM
Expires: Thu April 2, 2026, 2:00 AM

* WHAT...For the Winter Weather Advisory, mixed precipitation expected. Total snow and sleet accumulations between 3 and 5 inches and ice accumulations around a light glaze. For the Winter Storm Watch, heavy mixed precipitation possible. Total snow and sleet accumulations up to two inches and ice accumulations between one tenth and two tenths of an inch possible. * WHERE...Douglas County. * WHEN...For the Winter Weather Advisory, from 1 AM Thursday to 7 AM CDT Friday. For the Winter Storm Watch, from Friday afternoon through Saturday morning. * IMPACTS...Plan on slippery road conditions. 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.

Monitor the latest forecasts for updates on this situation. 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 1:59PM CDT until April 3 at 7:00AM CDT by NWS Duluth MN

Effective: Wed April 1, 2026, 1:59 PM
Expires: Thu April 2, 2026, 2:00 AM

* WHAT...For the Winter Weather Advisory, mixed precipitation expected. Total snow and sleet accumulations between 2 and 4 inches and ice accumulations around a light glaze. Winds gusting as high as 35 mph. For the Winter Storm Watch, heavy mixed precipitation possible. Total snow accumulations between 2 and 4 inches and ice accumulations around one tenth of an inch possible. * WHERE...Pine and Carlton and South St. Louis Counties. This includes the Tribal Lands of the Fond du Lac Band and the Mille Lacs Band, Hinckley and, Lena Lake areas. * WHEN...For the Winter Weather Advisory, from 1 AM Thursday to 7 AM CDT Friday. For the Winter Storm Watch, from Friday afternoon through late Saturday night. * IMPACTS...Plan on slippery road conditions. 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.

Monitor the latest forecasts for updates on this situation. 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 Storm Watch issued April 1 at 1:59PM CDT until April 5 at 1:00AM CDT by NWS Duluth MN

Effective: Wed April 1, 2026, 1:59 PM
Expires: Thu April 2, 2026, 2:00 AM

* WHAT...For the Winter Weather Advisory, mixed precipitation expected. Total snow and sleet accumulations between 2 and 4 inches and ice accumulations around a light glaze. Winds gusting as high as 35 mph. For the Winter Storm Watch, heavy mixed precipitation possible. Total snow accumulations between 2 and 4 inches and ice accumulations around one tenth of an inch possible. * WHERE...Pine and Carlton and South St. Louis Counties. This includes the Tribal Lands of the Fond du Lac Band and the Mille Lacs Band, Hinckley and, Lena Lake areas. * WHEN...For the Winter Weather Advisory, from 1 AM Thursday to 7 AM CDT Friday. For the Winter Storm Watch, from Friday afternoon through late Saturday night. * IMPACTS...Plan on slippery road conditions. 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.

Monitor the latest forecasts for updates on this situation. 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.


Thursday, April 2, 2026

Weather Forecast

Blowing snow
32.9°F
24.3°F
29.4°F
92%
0.71 in
66%
70%
24.8 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.56 μg/m3
PM10: 1.77 μg/m3
Carbon Monoxide: 161.57 μg/m3
Nitrogen Dioxide: 1.78 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 95.32 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
30.7°F
24.8°F
27.7°F
85%
0.37 in
61%
22%
18.1 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 1.35 μg/m3
PM10: 1.43 μg/m3
Carbon Monoxide: 153.45 μg/m3
Nitrogen Dioxide: 1.64 μg/m3
Sulphur Dioxide: 1.27 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

Saturday, April 4, 2026

Weather Forecast

Fog
34.8°F
30.2°F
32.7°F
95%
1.14 in
81%
35%
23.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.28 μg/m3
PM10: 1.31 μg/m3
Carbon Monoxide: 157.45 μg/m3
Nitrogen Dioxide: 2.12 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 97.24 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

Light freezing rain
34.9°F
21°F
30°F
90%
0.01 in
79%
12%
14.5 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 2.69 μg/m3
PM10: 3.79 μg/m3
Carbon Monoxide: 160.82 μg/m3
Nitrogen Dioxide: 2.41 μg/m3
Sulphur Dioxide: 1.92 μg/m3
Ozone: 102.76 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

Monday, April 6, 2026

Weather Forecast

Light freezing rain
35.1°F
21.7°F
29.9°F
91%
0.04 in
68%
61%
13.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 4.59 μg/m3
PM10: 5.72 μg/m3
Carbon Monoxide: 165.13 μg/m3
Nitrogen Dioxide: 3.84 μg/m3
Sulphur Dioxide: 1.84 μg/m3
Ozone: 101.85 μg/m3

Astronomical

Sunrise: 6:37 AM
Sun Transit: 1:10 PM
Sunset: 7:44 PM
Daylight: 13 hrs 7 mins
Moonrise: 12:14 AM
Moon Transit: 4:16 AM
Moonset: 8:15 AM
Moon Phase: Waning Gibbous
Moon Illumination: 74.7%

Best Times for Fishing or Hunting

Major Periods

3:46 AM - 6:16 AM
3:55 PM - 6:25 PM

Minor Periods

7:45 AM - 9:15 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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