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

16.3°F
Light snow
Light snow
1.4°F
16.9°F
67%
WNW 15.2 mph
20.5 mph
3.8°F
8.6°F
0 in
75%
8 mi
1009 mbar
0

Five Day Weather Forecast

Light freezing rain
Wed
H: 18°F
L: 7°F
Overcast
Thu
H: 5°F
L: -17°F
Sunny
Fri
H: -6°F
L: -20°F
Sunny
Sat
H: 3°F
L: -17°F
Freezing fog
Sun
H: 2°F
L: -13°F

Air Quality

AQI: 1 - Good
PM2.5: 2.05 μg/m3
PM10: 2.15 μg/m3
Carbon Monoxide: 159.85 μg/m3
Nitrogen Dioxide: 2.25 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 73 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 12:19 AM
Sunset: 4:55 PM
Daylight: 9 hrs 11 mins
Moonrise: 9:15 AM
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 AM
2:09 PM - 4:39 PM

Minor Periods

7:47 PM - 9:17 PM
8:45 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.


Wednesday, January 21, 2026

Weather Forecast

Light freezing rain
18.1°F
7.3°F
12.4°F
72%
0.01 in
71%
32%
16.8 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 7.74 μg/m3
PM10: 8.55 μg/m3
Carbon Monoxide: 219.93 μg/m3
Nitrogen Dioxide: 5.46 μg/m3
Sulphur Dioxide: 2.56 μg/m3
Ozone: 66.16 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 12:19 AM
Sunset: 4:55 PM
Daylight: 9 hrs 11 mins
Moonrise: 9:15 AM
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 AM
2:09 PM - 4:39 PM

Minor Periods

7:47 PM - 9:17 PM
8:45 AM - 10:15 AM

Action Rating: 3 out of 5

Thursday, January 22, 2026

Weather Forecast

Overcast
5°F
-16.7°F
-2.4°F
66%
0 in
0%
0%
18.8 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.97 μg/m3
PM10: 2.09 μg/m3
Carbon Monoxide: 162.97 μg/m3
Nitrogen Dioxide: 2.64 μg/m3
Sulphur Dioxide: 1.79 μg/m3
Ozone: 71.64 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 12:19 AM
Sunset: 4:56 PM
Daylight: 9 hrs 13 mins
Moonrise: 9:32 AM
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 AM
2:16 AM - 4:46 AM

Minor Periods

9:00 PM - 10:30 PM
9:02 AM - 10:32 AM

Action Rating: 2 out of 5

Friday, January 23, 2026

Weather Forecast

Sunny
-6.2°F
-20.4°F
-14.3°F
61%
0 in
0%
0%
14.5 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.56 μg/m3
PM10: 1.64 μg/m3
Carbon Monoxide: 161.01 μg/m3
Nitrogen Dioxide: 2.14 μg/m3
Sulphur Dioxide: 1.48 μg/m3
Ozone: 62.28 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 12:19 AM
Sunset: 4:58 PM
Daylight: 9 hrs 16 mins
Moonrise: 9:48 AM
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 AM
8:24 AM - 10:54 AM

Minor Periods

10:16 PM - 11:46 PM
9:18 AM - 10:48 AM

Action Rating: 2 out of 5

Saturday, January 24, 2026

Weather Forecast

Sunny
2.8°F
-17.3°F
-8.8°F
73%
0 in
0%
0%
7.8 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 3.03 μg/m3
PM10: 3.17 μg/m3
Carbon Monoxide: 194.22 μg/m3
Nitrogen Dioxide: 4.61 μg/m3
Sulphur Dioxide: 2.34 μg/m3
Ozone: 59.68 μg/m3

Astronomical

Sunrise: 7:41 AM
Sun Transit: 12:20 AM
Sunset: 4:59 PM
Daylight: 9 hrs 18 mins
Moonrise: 10:06 AM
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 AM
4:25 PM - 6:55 PM

Minor Periods

12:00 AM - 12:00 AM
9:36 AM - 11:06 AM

Action Rating: 2 out of 5

Sunday, January 25, 2026

Weather Forecast

Freezing fog
2.2°F
-13.3°F
-6.1°F
89%
0 in
0%
22%
8.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 5.4 μg/m3
PM10: 5.61 μg/m3
Carbon Monoxide: 214.52 μg/m3
Nitrogen Dioxide: 9.72 μg/m3
Sulphur Dioxide: 2.77 μg/m3
Ozone: 53.23 μg/m3

Astronomical

Sunrise: 7:40 AM
Sun Transit: 12:20 AM
Sunset: 5:01 PM
Daylight: 9 hrs 21 mins
Moonrise: 10:25 AM
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 AM
5:14 PM - 7:44 PM

Minor Periods

9:55 AM - 11:25 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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