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

68.2°F
Partly cloudy
Partly cloudy
68.2°F
69.6°F
94%
NNE 4 mph
8.5 mph
69.6°F
63.8°F
0 in
50%
10 mi
989 mbar
0

Five Day Weather Forecast

Sunny
Sat
H: 81°F
L: 65°F
Sunny
Sun
H: 75°F
L: 65°F
Sunny
Mon
H: 76°F
L: 58°F
Sunny
Tue
H: 72°F
L: 58°F
Sunny
Wed
H: 71°F
L: 56°F

Air Quality

AQI: 1 - Good
PM2.5: 20.8 μg/m3
PM10: 21.5 μg/m3
Carbon Monoxide: 174 μg/m3
Nitrogen Dioxide: 10.6 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 66 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:14 PM
Sunset: 8:49 PM
Daylight: 15 hrs 9 mins
Moonrise: 6:41 PM
Moon Transit: 10:29 PM
Moonset: 1:31 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

9:17 AM - 11:47 AM
12:00 AM - 12:00 AM

Minor Periods

6:11 PM - 7:41 PM
1:01 AM - 2:31 AM

Action Rating: 2 out of 5

Heat Advisory issued July 25 at 2:18PM CDT until July 26 at 9:00PM CDT by NWS Duluth MN

Effective: Sat July 25, 2026, 2:18 PM
Expires: Sun July 26, 2026, 2:30 AM

* WHAT...Heat index values up to 95 expected. * WHERE...North St. Louis, Cook and Lake Counties. This includes the Tribal Lands of the Bois Forte Band, Nett Lake area and the Grand Portage Reservation. Other locations including Voyageurs National Park. The entire Boundary Waters is also included. * WHEN...From 11 AM to 9 PM CDT Sunday. * 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.


Heat Advisory issued July 25 at 11:52AM CDT until July 26 at 9:00PM CDT by NWS Duluth MN

Effective: Sat July 25, 2026, 11:52 AM
Expires: Sun July 26, 2026, 12:00 AM

* WHAT...Heat index values up to 95 expected. * WHERE...North St. Louis, Cook and Lake Counties. This includes the Tribal Lands of the Bois Forte Band, Nett Lake area and the Grand Portage Reservation. Other locations including Voyageurs National Park. The entire Boundary Waters is also included. * WHEN...From 11 AM to 9 PM CDT Sunday. * 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.
Saturday, July 25, 2026

Weather Forecast

Sunny
81.1°F
65.1°F
70.6°F
71%
0.13 in
61%
0%
13 mph
6.8


Air Quality

AQI: 1 - Good
PM2.5: 12.91 μg/m3
PM10: 13.48 μg/m3
Carbon Monoxide: 148.33 μg/m3
Nitrogen Dioxide: 5.08 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 90.25 μg/m3

Astronomical

Sunrise: 5:40 AM
Sun Transit: 1:14 PM
Sunset: 8:49 PM
Daylight: 15 hrs 9 mins
Moonrise: 6:41 PM
Moon Transit: 10:29 PM
Moonset: 1:31 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

9:17 AM - 11:47 AM
12:00 AM - 12:00 AM

Minor Periods

6:11 PM - 7:41 PM
1:01 AM - 2:31 AM

Action Rating: 2 out of 5

Sunday, July 26, 2026

Weather Forecast

Sunny
75°F
65.2°F
69.1°F
82%
0.03 in
45%
0%
8.7 mph
7.4


Air Quality

AQI: 2 - Moderate
PM2.5: 19.81 μg/m3
PM10: 20.58 μg/m3
Carbon Monoxide: 179.04 μg/m3
Nitrogen Dioxide: 7.73 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 105.38 μg/m3

Astronomical

Sunrise: 5:41 AM
Sun Transit: 1:14 PM
Sunset: 8:48 PM
Daylight: 15 hrs 6 mins
Moonrise: 7:29 PM
Moon Transit: 11:21 PM
Moonset: 2:19 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 92.3%

Best Times for Fishing or Hunting

Major Periods

10:08 AM - 12:38 AM
12:00 AM - 12:00 AM

Minor Periods

6:59 PM - 8:29 PM
1:49 AM - 3:19 AM

Action Rating: 3 out of 5

Monday, July 27, 2026

Weather Forecast

Sunny
76.2°F
58.1°F
67°F
86%
0.01 in
28%
0%
10.3 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 5.23 μg/m3
PM10: 5.4 μg/m3
Carbon Monoxide: 133.54 μg/m3
Nitrogen Dioxide: 4.61 μg/m3
Sulphur Dioxide: 0.76 μg/m3
Ozone: 71.92 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
71.7°F
57.7°F
63.7°F
83%
0 in
17%
0%
13 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 3.78 μg/m3
PM10: 3.87 μg/m3
Carbon Monoxide: 146.17 μg/m3
Nitrogen Dioxide: 2.82 μg/m3
Sulphur Dioxide: 0.45 μg/m3
Ozone: 67 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
70.6°F
56.2°F
63.6°F
73%
0 in
7%
0%
11.9 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 2.27 μg/m3
PM10: 2.37 μg/m3
Carbon Monoxide: 117 μg/m3
Nitrogen Dioxide: 2.4 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 62 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

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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