Water Temperature of Lake Superior in Superior, WI

Current Water Temperature

53.7°F

Measurement Time: Sunday, May 3, 2026, 7:15 PM CDT

Temperature Locations

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Local Points of Interest

Lake Superior Estuarium; Lake Superior National Estuarine Research Reserve (NERR); Barkers Island Beach; Duluth, MN

Lake Superior

Station Name: Superior
Data Source: USGS

Elevation Above Sea Level: 587 feet

Nearest Address:
182 Marina Dr
Superior, WI 54880
Douglas County

GPS Coordinates: 46.7217, -92.0635

Nearby Water Temperatures

Duluth Harbor, Duluth, MN (4 mi)
Lake Superior, Duluth, MN (10.9 mi)
Lake Superior, Duluth, MN (11.5 mi)
Lake Superior, Duluth, MN (12.8 mi)
St. Louis River, Scanlon, MN (16.9 mi)
Knife River, Knife River, MN (20.2 mi)
Bois Brule River, Maple, WI (21.9 mi)
Lake Superior, Two Harbors, MN (27.8 mi)
St. Croix River, Danbury, WI (45.5 mi)
Namekagon River, Cable, WI (51.6 mi)
Saint Louis River, Hoyt Lakes, MN (52.5 mi)
Chequamegon Bay, Ashland, WI (56.9 mi)
Baptism River, Illgen City, MN (58.9 mi)
Partrige River, Babbitt, MN (62.4 mi)
Dunka River, Babbitt, MN (66 mi)

Weather for Superior, Wisconsin

Current Weather

44.4°F
Overcast
Overcast
38.6°F
44.4°F
63%
WNW 11 mph
15.8 mph
38.6°F
32.7°F
0 in
98%
6 mi
1021 mbar
0

Five Day Weather Forecast

Moderate rain
Tue
H: 49°F
L: 43°F
Sunny
Wed
H: 54°F
L: 36°F
Sunny
Thu
H: 56°F
L: 36°F
Patchy rain nearby
Fri
H: 54°F
L: 38°F
Moderate rain
Sat
H: 48°F
L: 42°F

Air Quality

AQI: 1 - Good
PM2.5: 3.75 μg/m3
PM10: 3.95 μg/m3
Carbon Monoxide: 148.85 μg/m3
Nitrogen Dioxide: 8.15 μg/m3
Sulphur Dioxide: 1.65 μg/m3
Ozone: 52 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 1:04 PM
Sunset: 8:41 PM
Daylight: 15 hrs 13 mins
Moonrise: 7:36 AM
Moon Transit: 4:11 PM
Moonset: 12:44 AM
Moon Phase: Waxing Crescent
Moon Illumination: 7.4%

Best Times for Fishing or Hunting

Major Periods

2:51 AM - 5:21 AM
3:41 PM - 6:11 PM

Minor Periods

7:06 AM - 8:36 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Frost Advisory issued May 19 at 2:09PM CDT until May 20 at 8:00AM CDT by NWS Duluth MN

Effective: Tue May 19, 2026, 2:09 PM
Expires: Wed May 20, 2026, 2:15 AM

* WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...In Minnesota, Pine County. In Wisconsin, Price, Ashland, Bayfield, Burnett, Douglas, Iron, Sawyer, and Washburn Counties. This includes the Tribal Lands of the Red Cliff Band, the Bad River Reservation, the St. Croix Band in Burnett County, the Lac Courte Oreilles 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. * WHEN...From 3 AM to 8 AM CDT Wednesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.


Freeze Warning issued May 19 at 2:09PM CDT until May 20 at 8:00AM CDT by NWS Duluth MN

Effective: Tue May 19, 2026, 2:09 PM
Expires: Wed May 20, 2026, 2:15 AM

* WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...Crow Wing, Aitkin, Koochiching, Cass, Itasca, Carlton, St. Louis, Cook and Lake Counties. This includes the Tribal Lands of the Grand Portage Reservation, the Fond du Lac Band, the Mille Lacs Band, East Lake and, Big Sandy Lake areas and the Bois Forte Band, Deer Creek, Lake Vermilion and, Nett Lake areas. Other locations including Voyageurs National Park. The entire Boundary Waters is also included. * WHEN...From midnight tonight to 8 AM CDT Wednesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.

Take steps now to protect tender plants from the cold.
Tuesday, May 19, 2026

Weather Forecast

Moderate rain
48.7°F
42.8°F
45.5°F
81%
0.45 in
87%
0%
14.5 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 2.24 μg/m3
PM10: 2.29 μg/m3
Carbon Monoxide: 122.41 μg/m3
Nitrogen Dioxide: 2.99 μg/m3
Sulphur Dioxide: 1.23 μg/m3
Ozone: 58.04 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 1:04 PM
Sunset: 8:41 PM
Daylight: 15 hrs 13 mins
Moonrise: 7:36 AM
Moon Transit: 4:11 PM
Moonset: 12:44 AM
Moon Phase: Waxing Crescent
Moon Illumination: 7.4%

Best Times for Fishing or Hunting

Major Periods

2:51 AM - 5:21 AM
3:41 PM - 6:11 PM

Minor Periods

7:06 AM - 8:36 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, May 20, 2026

Weather Forecast

Sunny
54°F
35.8°F
45.5°F
61%
0 in
0%
0%
8.3 mph
6.5


Air Quality

AQI: 1 - Good
PM2.5: 6.32 μg/m3
PM10: 6.7 μg/m3
Carbon Monoxide: 132.49 μg/m3
Nitrogen Dioxide: 6.65 μg/m3
Sulphur Dioxide: 1.65 μg/m3
Ozone: 61.28 μg/m3

Astronomical

Sunrise: 5:28 AM
Sun Transit: 1:04 PM
Sunset: 8:43 PM
Daylight: 15 hrs 15 mins
Moonrise: 8:56 AM
Moon Transit: 5:13 PM
Moonset: 12:37 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

3:56 AM - 6:26 AM
4:43 PM - 7:13 PM

Minor Periods

8:26 AM - 9:56 AM
12:07 AM - 1:37 AM

Action Rating: 2 out of 5

Thursday, May 21, 2026

Weather Forecast

Sunny
56.1°F
36.4°F
45.7°F
72%
0 in
0%
0%
7.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 5.77 μg/m3
PM10: 6.15 μg/m3
Carbon Monoxide: 132.29 μg/m3
Nitrogen Dioxide: 4.9 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 69.2 μg/m3

Astronomical

Sunrise: 5:27 AM
Sun Transit: 1:04 PM
Sunset: 8:44 PM
Daylight: 15 hrs 17 mins
Moonrise: 10:19 AM
Moon Transit: 6:09 PM
Moonset: 1:15 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

4:55 AM - 7:25 AM
5:39 PM - 8:09 PM

Minor Periods

9:49 AM - 11:19 AM
12:45 AM - 2:15 AM

Action Rating: 2 out of 5

Friday, May 22, 2026

Weather Forecast

Patchy rain nearby
53.6°F
38.1°F
45.4°F
77%
0.02 in
64%
0%
16.3 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 3.27 μg/m3
PM10: 3.51 μg/m3
Carbon Monoxide: 139.32 μg/m3
Nitrogen Dioxide: 3.39 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 66.6 μg/m3

Astronomical

Sunrise: 5:26 AM
Sun Transit: 1:04 PM
Sunset: 8:45 PM
Daylight: 15 hrs 19 mins
Moonrise: 11:39 AM
Moon Transit: 7:00 PM
Moonset: 1:43 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

5:48 AM - 8:18 AM
6:30 PM - 9:00 PM

Minor Periods

11:09 AM - 12:39 AM
1:13 AM - 2:43 AM

Action Rating: 4 out of 5

Saturday, May 23, 2026

Weather Forecast

Moderate rain
47.8°F
41.9°F
43.5°F
94%
0.5 in
65%
0%
11.6 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 3.75 μg/m3
PM10: 4.01 μg/m3
Carbon Monoxide: 139.77 μg/m3
Nitrogen Dioxide: 3.14 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 70.92 μg/m3

Astronomical

Sunrise: 5:25 AM
Sun Transit: 1:05 PM
Sunset: 8:46 PM
Daylight: 15 hrs 21 mins
Moonrise: 12:55 AM
Moon Transit: 7:46 PM
Moonset: 2:04 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

6:36 AM - 9:06 AM
7:16 PM - 9:46 PM

Minor Periods

12:25 AM - 1:55 PM
1:34 AM - 3:04 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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