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

69.4°F
Clear
Clear
57°F
69.4°F
78%
NW 9.4 mph
19.7 mph
69.4°F
62.4°F
0 in
0%
3 mi
1005 mbar
0

Five Day Weather Forecast

Sunny
Mon
H: 71°F
L: 58°F
Sunny
Tue
H: 73°F
L: 58°F
Sunny
Wed
H: 76°F
L: 58°F
Sunny
Thu
H: 84°F
L: 62°F
Sunny
Fri
H: 81°F
L: 65°F

Air Quality

AQI: 1 - Good
PM2.5: 17.1 μg/m3
PM10: 17.8 μg/m3
Carbon Monoxide: 140 μg/m3
Nitrogen Dioxide: 7.7 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 68 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:14 PM
Sunset: 8:46 PM
Daylight: 15 hrs 4 mins
Moonrise: 8:08 PM
Moon Transit: 12:00 AM
Moonset: 3:16 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:59 AM - 1:29 PM

Minor Periods

7:38 PM - 9:08 PM
2:46 AM - 4:16 AM

Action Rating: 3 out of 5

Heat Advisory issued July 26 at 10:17AM CDT until July 26 at 9:00PM CDT by NWS Duluth MN

Effective: Sun July 26, 2026, 10:17 AM
Expires: Sun July 26, 2026, 9:00 PM

* WHAT...Heat index values up to 95 degrees expected. The dense fog has dissipated, with visibilities improving to a half mile or better. * WHERE...Central St. Louis County. This includes the Tribal Lands of the Bois Forte Band, Lake Vermilion area. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.


Dense Fog Advisory issued July 26 at 9:13AM CDT until July 26 at 10:00AM CDT by NWS Duluth MN

Effective: Sun July 26, 2026, 9:13 AM
Expires: Sun July 26, 2026, 9:00 PM

* WHAT...For the Dense Fog Advisory, visibility one-quarter mile or less in dense fog. For the Heat Advisory, heat index values up to 95 expected. * WHERE...Central St. Louis County. This includes the Tribal Lands of the Bois Forte Band, Lake Vermilion area. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Low visibility could make driving conditions hazardous.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. If driving, slow down, use your low-beam headlights and fog lights, and leave plenty of distance ahead of you.


Heat Advisory issued July 26 at 9:13AM CDT until July 26 at 9:00PM CDT by NWS Duluth MN

Effective: Sun July 26, 2026, 9:13 AM
Expires: Sun July 26, 2026, 9:00 PM

* WHAT...For the Dense Fog Advisory, visibility one-quarter mile or less in dense fog. For the Heat Advisory, heat index values up to 95 expected. * WHERE...Central St. Louis County. This includes the Tribal Lands of the Bois Forte Band, Lake Vermilion area. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Low visibility could make driving conditions hazardous.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. If driving, slow down, use your low-beam headlights and fog lights, and leave plenty of distance ahead of you.
Monday, July 27, 2026

Weather Forecast

Sunny
70.7°F
58.2°F
64.8°F
88%
0.01 in
26%
0%
14.3 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 6.6 μg/m3
PM10: 6.89 μg/m3
Carbon Monoxide: 136.58 μg/m3
Nitrogen Dioxide: 4.19 μg/m3
Sulphur Dioxide: 0.66 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 5:43 AM
Sun Transit: 1:14 PM
Sunset: 8:46 PM
Daylight: 15 hrs 4 mins
Moonrise: 8:08 PM
Moon Transit: 12:00 AM
Moonset: 3:16 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 97.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:59 AM - 1:29 PM

Minor Periods

7:38 PM - 9:08 PM
2:46 AM - 4:16 AM

Action Rating: 3 out of 5

Tuesday, July 28, 2026

Weather Forecast

Sunny
72.6°F
58.2°F
64.4°F
83%
0.19 in
70%
0%
17.9 mph
6.2


Air Quality

AQI: 1 - Good
PM2.5: 9.2 μg/m3
PM10: 9.64 μg/m3
Carbon Monoxide: 126.46 μg/m3
Nitrogen Dioxide: 4.91 μg/m3
Sulphur Dioxide: 0.69 μg/m3
Ozone: 68.17 μg/m3

Astronomical

Sunrise: 5:44 AM
Sun Transit: 1:14 PM
Sunset: 8:45 PM
Daylight: 15 hrs 1 mins
Moonrise: 8:39 PM
Moon Transit: 12:11 AM
Moonset: 4:21 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:49 AM - 2:19 PM

Minor Periods

8:09 PM - 9:39 PM
3:51 AM - 5:21 AM

Action Rating: 4 out of 5

Wednesday, July 29, 2026

Weather Forecast

Sunny
75.7°F
57.5°F
65.5°F
87%
0.02 in
45%
0%
6.9 mph
6.9


Air Quality

AQI: 1 - Good
PM2.5: 8.65 μg/m3
PM10: 8.92 μg/m3
Carbon Monoxide: 114.58 μg/m3
Nitrogen Dioxide: 6.89 μg/m3
Sulphur Dioxide: 0.45 μg/m3
Ozone: 62.63 μg/m3

Astronomical

Sunrise: 5:45 AM
Sun Transit: 1:14 PM
Sunset: 8:44 PM
Daylight: 14 hrs 59 mins
Moonrise: 9:03 PM
Moon Transit: 1:00 AM
Moonset: 5:30 AM
Moon Phase: Full
Moon Illumination: 99.7%

Best Times for Fishing or Hunting

Major Periods

12:30 AM - 3:00 AM
12:37 AM - 3:07 PM

Minor Periods

8:33 PM - 10:03 PM
5:00 AM - 6:30 AM

Action Rating: 4 out of 5

Thursday, July 30, 2026

Weather Forecast

Sunny
84.3°F
62.4°F
71.7°F
79%
0.03 in
42%
0%
10.7 mph
5.3


Air Quality

AQI: 1 - Good
PM2.5: 6.41 μg/m3
PM10: 6.68 μg/m3
Carbon Monoxide: 130.87 μg/m3
Nitrogen Dioxide: 4.45 μg/m3
Sulphur Dioxide: 0.46 μg/m3
Ozone: 71.25 μg/m3

Astronomical

Sunrise: 5:46 AM
Sun Transit: 1:14 PM
Sunset: 8:43 PM
Daylight: 14 hrs 57 mins
Moonrise: 9:23 PM
Moon Transit: 1:47 AM
Moonset: 6:41 AM
Moon Phase: Full
Moon Illumination: 97.1%

Best Times for Fishing or Hunting

Major Periods

1:17 AM - 3:47 AM
1:22 PM - 3:52 PM

Minor Periods

8:53 PM - 10:23 PM
6:11 AM - 7:41 AM

Action Rating: 5 out of 5

Friday, July 31, 2026

Weather Forecast

Sunny
81.4°F
65.4°F
72.3°F
79%
0.01 in
36%
0%
6.3 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 11.11 μg/m3
PM10: 11.25 μg/m3
Carbon Monoxide: 265.38 μg/m3
Nitrogen Dioxide: 9 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 54.38 μg/m3

Astronomical

Sunrise: 5:47 AM
Sun Transit: 1:14 PM
Sunset: 8:41 PM
Daylight: 14 hrs 54 mins
Moonrise: 9:41 PM
Moon Transit: 2:31 AM
Moonset: 7:51 AM
Moon Phase: Full
Moon Illumination: 92.0%

Best Times for Fishing or Hunting

Major Periods

2:01 AM - 4:31 AM
2:06 PM - 4:36 PM

Minor Periods

9:11 PM - 10:41 PM
7:21 AM - 8:51 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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