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

43.1°F
Sunny
Sunny
37.5°F
43.1°F
90%
E 3.1 mph
3.8 mph
37.5°F
40.5°F
0 in
7%
6 mi
1029 mbar
3

Five Day Weather Forecast

Sunny
Thu
H: 51°F
L: 40°F
Partly Cloudy
Fri
H: 52°F
L: 38°F
Heavy rain
Sat
H: 43°F
L: 42°F
Patchy rain nearby
Sun
H: 64°F
L: 44°F
Patchy rain nearby
Mon
H: 71°F
L: 46°F

Air Quality

AQI: 1 - Good
PM2.5: 3.45 μg/m3
PM10: 3.75 μg/m3
Carbon Monoxide: 122.85 μg/m3
Nitrogen Dioxide: 2.55 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 70 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

Frost Advisory issued May 20 at 9:35PM CDT until May 21 at 8:00AM CDT by NWS Duluth MN

Effective: Wed May 20, 2026, 9:35 PM
Expires: Thu May 21, 2026, 8:00 AM

* WHAT...Temperatures as low as 32 will result in frost formation. * WHERE...In Minnesota, Carlton, South and Central St. Louis, Cook and Lake Counties. In Wisconsin, Price, Ashland, Bayfield, Douglas, Iron, and Sawyer Counties. This includes the Tribal Lands of the northwestern area of the Lac du Flambeau Band, the Fond du Lac Band, the Bad River Reservation, the Bois Forte Band, Lake Vermilion area, the Red Cliff Band, the Lac Courte Oreilles Reservation and the Grand Portage Reservation. Other locations including Madeline Island and the Apostle Islands National Lakeshore. This also includes the Boundary Waters eastern and central area. * WHEN...From 1 AM to 8 AM CDT Thursday. * 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.


Frost Advisory issued May 21 at 2:14AM CDT until May 21 at 8:00AM CDT by NWS Duluth MN

Effective: Thu May 21, 2026, 2:14 AM
Expires: Thu May 21, 2026, 8:00 AM

* WHAT...Temperatures as low as 31 will result in frost formation. * WHERE...In Minnesota, Carlton and South and Central St. Louis Counties. In Wisconsin, Price, Bayfield, Douglas, and Sawyer Counties. This includes the Tribal Lands of the Lac Courte Oreilles Reservation, the Fond du Lac Band, the Bois Forte Band, Lake Vermilion area and the Red Cliff Band. Other locations including the Apostle Islands National Lakeshore. * WHEN...Until 8 AM CDT this morning. * 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.
Thursday, May 21, 2026

Weather Forecast

Sunny
51.4°F
39.9°F
44.9°F
85%
0 in
0%
0%
9.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 5.27 μg/m3
PM10: 5.84 μg/m3
Carbon Monoxide: 123.61 μg/m3
Nitrogen Dioxide: 4.14 μg/m3
Sulphur Dioxide: 1.12 μg/m3
Ozone: 70 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

Partly Cloudy
51.9°F
37.6°F
44.8°F
77%
0 in
0%
0%
16.8 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 4.38 μg/m3
PM10: 4.77 μg/m3
Carbon Monoxide: 120.37 μg/m3
Nitrogen Dioxide: 3.07 μg/m3
Sulphur Dioxide: 1.06 μg/m3
Ozone: 70.76 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

Heavy rain
43.3°F
41.9°F
42.8°F
96%
1.02 in
84%
0%
11.4 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 4.71 μg/m3
PM10: 4.97 μg/m3
Carbon Monoxide: 121.77 μg/m3
Nitrogen Dioxide: 3.12 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 72.44 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

Sunday, May 24, 2026

Weather Forecast

Patchy rain nearby
64°F
43.5°F
53°F
85%
0.14 in
84%
0%
8.3 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 6.2 μg/m3
PM10: 6.33 μg/m3
Carbon Monoxide: 135.83 μg/m3
Nitrogen Dioxide: 7.53 μg/m3
Sulphur Dioxide: 1.51 μg/m3
Ozone: 59.56 μg/m3

Astronomical

Sunrise: 5:24 AM
Sun Transit: 1:05 PM
Sunset: 8:47 PM
Daylight: 15 hrs 23 mins
Moonrise: 2:07 PM
Moon Transit: 8:29 PM
Moonset: 2:23 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

7:21 AM - 9:51 AM
7:59 PM - 10:29 PM

Minor Periods

1:37 PM - 3:07 PM
1:53 AM - 3:23 AM

Action Rating: 2 out of 5

Monday, May 25, 2026

Weather Forecast

Patchy rain nearby
71.4°F
46.1°F
56.4°F
82%
0.01 in
85%
0%
10.7 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 8.06 μg/m3
PM10: 8.44 μg/m3
Carbon Monoxide: 190.58 μg/m3
Nitrogen Dioxide: 11.22 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 51.92 μg/m3

Astronomical

Sunrise: 5:23 AM
Sun Transit: 1:05 PM
Sunset: 8:48 PM
Daylight: 15 hrs 25 mins
Moonrise: 3:17 PM
Moon Transit: 9:11 PM
Moonset: 2:39 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

8:03 AM - 10:33 AM
8:41 PM - 11:11 PM

Minor Periods

2:47 PM - 4:17 PM
2:09 AM - 3:39 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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