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

41.4°F
Partly cloudy
Partly cloudy
36.3°F
41.4°F
81%
NE 7.8 mph
16.4 mph
36.4°F
37.3°F
0 in
75%
9 mi
1024 mbar
1

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: 4.65 μg/m3
PM10: 4.95 μg/m3
Carbon Monoxide: 115.85 μg/m3
Nitrogen Dioxide: 4.25 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 62 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 21 at 11:06AM CDT until May 22 at 7:00AM CDT by NWS Duluth MN

Effective: Thu May 21, 2026, 11:06 AM
Expires: Fri May 22, 2026, 7:00 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, Douglas County. This includes the Tribal Lands of the Bois Forte Band, Lake Vermilion area, the Fond du Lac Band and the Grand Portage Reservation. This also includes the Boundary Waters eastern and central area. * WHEN...From midnight tonight to 7 AM CDT Friday. * 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.


Beach Hazards Statement issued May 21 at 8:08AM CDT until May 21 at 10:00PM CDT by NWS Duluth MN

Effective: Thu May 21, 2026, 8:08 AM
Expires: Thu May 21, 2026, 10:00 PM

* WHAT...Dangerous swimming conditions are expected along the Lake Superior shoreline due to high wave action and strong rip currents. * WHERE...Minnesota Park Point and Wisconsin Point Beaches. * WHEN...From 4 PM CDT this afternoon through this evening. * IMPACTS...High wave action can make swimming difficult on days such as this. Incoming waves in rapid succession can tire even an experienced swimmer quickly. Rip currents can move you away from land. To avoid being swept away, swim parallel to the shore to exit a rip current.

Remain out of the water to avoid hazardous swimming conditions.
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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