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

86.9°F
Partly cloudy
Partly cloudy
85.7°F
83.6°F
49%
SW 15.4 mph
23.1 mph
84.9°F
52.9°F
0 in
50%
9 mi
1001 mbar
7

Five Day Weather Forecast

Sunny
Mon
H: 85°F
L: 67°F
Partly Cloudy
Tue
H: 71°F
L: 57°F
Sunny
Wed
H: 73°F
L: 49°F
Sunny
Thu
H: 81°F
L: 55°F
Sunny
Fri
H: 82°F
L: 57°F

Air Quality

AQI: 1 - Good
PM2.5: 6.5 μg/m3
PM10: 6.7 μg/m3
Carbon Monoxide: 123 μg/m3
Nitrogen Dioxide: 1.3 μg/m3
Sulphur Dioxide: 0.8 μg/m3
Ozone: 119 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:14 PM
Sunset: 8:54 PM
Daylight: 15 hrs 19 mins
Moonrise: 1:12 PM
Moon Transit: 6:30 PM
Moonset: 12:21 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

5:22 AM - 7:52 AM
6:00 PM - 8:30 PM

Minor Periods

12:42 AM - 2:12 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Special Weather Statement issued July 20 at 6:12AM CDT by NWS Duluth MN

Effective: Mon July 20, 2026, 6:12 AM
Expires: Mon July 20, 2026, 1:00 PM

Dry conditions and very strong west winds will lead to near critical fire weather conditions today. West winds of 10 to 20 mph with gusts of 30 to 35 mph are forecast for the entire day Minimum relative humidity values of 40 to 50 percent are also expected, possibly drier in northern Saint Louis county where overnight showers and storms only brough a few hundreths of an inch of rain. Higher rainfall amounts did fall in northern Cook and Lake Counties on the order of a quarter to half inch, but skies will partially clear out quickly today leading to drying condiitons. Together, these conditions could lead to the rapid spread of fires. Check burning restrictions and fire danger before burning. For more information on burning restrictions for Minnesota, see www.dnr.state.mn.us/forestry/fire/firerating_restrictions.html.


Heat Advisory issued July 20 at 12:13AM CDT until July 20 at 7:00PM CDT by NWS Duluth MN

Effective: Mon July 20, 2026, 12:13 AM
Expires: Mon July 20, 2026, 12:15 PM

* WHAT...Heat index values up to 95 expected. * WHERE...In Minnesota, Crow Wing, Aitkin, Pine, Carlton and South St. Louis, and Southern Lake Counties. In Wisconsin, Price, Ashland, Bayfield, Burnett, Douglas, Iron, Sawyer, and Washburn Counties. This includes the Tribal Lands of the Lac Courte Oreilles Reservation, the Red Cliff Band, the St. Croix Band in Burnett County, the northwestern area of the Lac du Flambeau Band, the Bad River Reservation, the Fond du Lac Band and the Mille Lacs Band, East Lake, Hinckley, Lena Lake and, Big Sandy Lake areas. Other locations including the Apostle Islands National Lakeshore and Madeline Island. * WHEN...From 11 AM this morning to 7 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.
Monday, July 20, 2026

Weather Forecast

Sunny
84.9°F
67.1°F
74.1°F
58%
0.02 in
36%
0%
18.1 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 6.19 μg/m3
PM10: 6.35 μg/m3
Carbon Monoxide: 134.21 μg/m3
Nitrogen Dioxide: 2.75 μg/m3
Sulphur Dioxide: 0.71 μg/m3
Ozone: 102.33 μg/m3

Astronomical

Sunrise: 5:35 AM
Sun Transit: 1:14 PM
Sunset: 8:54 PM
Daylight: 15 hrs 19 mins
Moonrise: 1:12 PM
Moon Transit: 6:30 PM
Moonset: 12:21 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

5:22 AM - 7:52 AM
6:00 PM - 8:30 PM

Minor Periods

12:42 AM - 2:12 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Tuesday, July 21, 2026

Weather Forecast

Partly Cloudy
71.3°F
56.8°F
65.6°F
64%
0 in
10%
0%
16.8 mph
6.4


Air Quality

AQI: 1 - Good
PM2.5: 4.42 μg/m3
PM10: 4.49 μg/m3
Carbon Monoxide: 172.75 μg/m3
Nitrogen Dioxide: 1.83 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 82.58 μg/m3

Astronomical

Sunrise: 5:36 AM
Sun Transit: 1:14 PM
Sunset: 8:53 PM
Daylight: 15 hrs 17 mins
Moonrise: 2:22 PM
Moon Transit: 7:15 PM
Moonset: 12:39 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

6:05 AM - 8:35 AM
6:45 PM - 9:15 PM

Minor Periods

1:52 PM - 3:22 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Wednesday, July 22, 2026

Weather Forecast

Sunny
73°F
49.1°F
62°F
59%
0 in
4%
0%
6 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 9.01 μg/m3
PM10: 9.35 μg/m3
Carbon Monoxide: 182.75 μg/m3
Nitrogen Dioxide: 4.71 μg/m3
Sulphur Dioxide: 0.76 μg/m3
Ozone: 84.17 μg/m3

Astronomical

Sunrise: 5:37 AM
Sun Transit: 1:14 PM
Sunset: 8:52 PM
Daylight: 15 hrs 15 mins
Moonrise: 3:31 PM
Moon Transit: 8:00 PM
Moonset: 12:59 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

6:50 AM - 9:20 AM
7:30 PM - 10:00 PM

Minor Periods

3:01 PM - 4:31 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
80.9°F
54.7°F
67.2°F
61%
0.01 in
17%
0%
12.5 mph
7.2


Air Quality

AQI: 1 - Good
PM2.5: 9.24 μg/m3
PM10: 9.47 μg/m3
Carbon Monoxide: 179.28 μg/m3
Nitrogen Dioxide: 5.27 μg/m3
Sulphur Dioxide: 1 μg/m3
Ozone: 88.29 μg/m3

Astronomical

Sunrise: 5:38 AM
Sun Transit: 1:14 PM
Sunset: 8:51 PM
Daylight: 15 hrs 13 mins
Moonrise: 4:40 PM
Moon Transit: 8:48 PM
Moonset: 12:23 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

7:37 AM - 10:07 AM
8:18 PM - 10:48 PM

Minor Periods

4:10 PM - 5:40 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
81.6°F
57.4°F
66.3°F
73%
0.16 in
63%
0%
15 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 9.54 μg/m3
PM10: 9.64 μg/m3
Carbon Monoxide: 254.5 μg/m3
Nitrogen Dioxide: 8.45 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 64.38 μg/m3

Astronomical

Sunrise: 5:39 AM
Sun Transit: 1:14 PM
Sunset: 8:50 PM
Daylight: 15 hrs 11 mins
Moonrise: 5:43 PM
Moon Transit: 9:38 PM
Moonset: 12:53 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

8:26 AM - 10:56 AM
9:08 PM - 11:38 PM

Minor Periods

5:13 PM - 6:43 PM
12:23 AM - 1:53 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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