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

54°F
Overcast
Overcast
49.6°F
60.8°F
78%
ENE 15.4 mph
19.6 mph
60.8°F
58.3°F
0 in
100%
9 mi
1012 mbar
5.8

Five Day Weather Forecast

Sunny
Sun
H: 63°F
L: 56°F
Patchy rain nearby
Mon
H: 71°F
L: 56°F
Fog
Tue
H: 81°F
L: 59°F
Sunny
Wed
H: 73°F
L: 60°F
Sunny
Thu
H: 80°F
L: 61°F

Air Quality

AQI: 1 - Good
PM2.5: 2.7 μg/m3
PM10: 2.8 μg/m3
Carbon Monoxide: 100 μg/m3
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 75 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 1:11 PM
Sunset: 9:06 PM
Daylight: 15 hrs 49 mins
Moonrise: 8:46 PM
Moon Transit: 12:00 AM
Moonset: 3:34 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:22 AM - 1:52 PM

Minor Periods

8:16 PM - 9:46 PM
3:04 AM - 4:34 AM

Action Rating: 2 out of 5

Heat Advisory issued June 28 at 12:45PM CDT until June 30 at 12:00AM CDT by NWS Duluth MN

Effective: Sun June 28, 2026, 12:45 PM
Expires: Mon June 29, 2026, 12:45 AM

* WHAT...Heat index values of 100 to 105 expected. * WHERE...Douglas County. * WHEN...From 9 AM Monday to midnight CDT Monday Night. * 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.


Beach Hazards Statement issued June 28 at 4:43AM CDT until June 28 at 10:00PM CDT by NWS Duluth MN

Effective: Sun June 28, 2026, 4:43 AM
Expires: Sun June 28, 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 10 AM CDT this morning through this evening. * IMPACTS...Life-threatening waves and rip currents are expected. Stay out of the water and stay away from dangerous areas like piers and breakwalls.

Remain out of the water to avoid hazardous swimming conditions.


Extreme Heat Watch issued June 27 at 11:12PM CDT until June 29 at 8:00PM CDT by NWS Duluth MN

Effective: Sat June 27, 2026, 11:12 PM
Expires: Sun June 28, 2026, 3:00 PM

* WHAT...Dangerously hot conditions with heat index values up to 108 possible. * WHERE...In Minnesota, Pine County. In Wisconsin, Burnett County. This includes the Tribal Lands of the St. Croix Band in Burnett County and the Mille Lacs Band, Hinckley and, Lena Lake areas. * WHEN...From Monday morning through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

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


Extreme Heat Warning issued June 28 at 12:45PM CDT until June 30 at 12:00AM CDT by NWS Duluth MN

Effective: Sun June 28, 2026, 12:45 PM
Expires: Mon June 29, 2026, 12:45 AM

* WHAT...Dangerously hot conditions with heat index values of 105 to 110 expected. * WHERE...In Minnesota, Pine County. In Wisconsin, Burnett County. This includes the Tribal Lands of the St. Croix Band in Burnett County and the Mille Lacs Band, Hinckley and, Lena Lake areas. * WHEN...From 9 AM Monday to midnight CDT Monday Night. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Sunday, June 28, 2026

Weather Forecast

Sunny
62.6°F
56.3°F
59.7°F
88%
0.01 in
28%
0%
15.4 mph
5.8


Air Quality

AQI: 1 - Good
PM2.5: 2.98 μg/m3
PM10: 3.07 μg/m3
Carbon Monoxide: 101.25 μg/m3
Nitrogen Dioxide: 2.04 μg/m3
Sulphur Dioxide: 0.32 μg/m3
Ozone: 69.25 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 1:11 PM
Sunset: 9:06 PM
Daylight: 15 hrs 49 mins
Moonrise: 8:46 PM
Moon Transit: 12:00 AM
Moonset: 3:34 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 98.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:22 AM - 1:52 PM

Minor Periods

8:16 PM - 9:46 PM
3:04 AM - 4:34 AM

Action Rating: 2 out of 5

Monday, June 29, 2026

Weather Forecast

Patchy rain nearby
71.4°F
56.4°F
62°F
95%
0.16 in
86%
0%
14.3 mph
4.2


Air Quality

AQI: 1 - Good
PM2.5: 2.57 μg/m3
PM10: 2.77 μg/m3
Carbon Monoxide: 121.42 μg/m3
Nitrogen Dioxide: 2.23 μg/m3
Sulphur Dioxide: 0.45 μg/m3
Ozone: 86.21 μg/m3

Astronomical

Sunrise: 5:17 AM
Sun Transit: 1:11 PM
Sunset: 9:06 PM
Daylight: 15 hrs 49 mins
Moonrise: 9:31 PM
Moon Transit: 12:35 AM
Moonset: 4:26 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:05 AM - 2:35 AM
12:13 AM - 2:43 PM

Minor Periods

9:01 PM - 10:31 PM
3:56 AM - 5:26 AM

Action Rating: 5 out of 5

Tuesday, June 30, 2026

Weather Forecast

Fog
81.1°F
58.6°F
69.4°F
83%
0.13 in
74%
0%
11.4 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 4.6 μg/m3
PM10: 5.23 μg/m3
Carbon Monoxide: 122.08 μg/m3
Nitrogen Dioxide: 3 μg/m3
Sulphur Dioxide: 0.6 μg/m3
Ozone: 91.71 μg/m3

Astronomical

Sunrise: 5:18 AM
Sun Transit: 1:12 PM
Sunset: 9:06 PM
Daylight: 15 hrs 48 mins
Moonrise: 10:07 PM
Moon Transit: 1:26 AM
Moonset: 5:25 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

12:56 AM - 3:26 AM
1:04 PM - 3:34 PM

Minor Periods

9:37 PM - 11:07 PM
4:55 AM - 6:25 AM

Action Rating: 4 out of 5

Wednesday, July 1, 2026

Weather Forecast

Sunny
72.9°F
60.4°F
65.7°F
91%
3.39 in
84%
0%
18.1 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 9.5 μg/m3
PM10: 10.61 μg/m3
Carbon Monoxide: 150.47 μg/m3
Nitrogen Dioxide: 6.86 μg/m3
Sulphur Dioxide: 0.86 μg/m3
Ozone: 86.5 μg/m3

Astronomical

Sunrise: 5:18 AM
Sun Transit: 1:12 PM
Sunset: 9:06 PM
Daylight: 15 hrs 47 mins
Moonrise: 10:35 PM
Moon Transit: 2:16 AM
Moonset: 6:32 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

1:46 AM - 4:16 AM
1:53 PM - 4:23 PM

Minor Periods

10:05 PM - 11:35 PM
6:02 AM - 7:32 AM

Action Rating: 3 out of 5

Thursday, July 2, 2026

Weather Forecast

Sunny
79.7°F
60.8°F
69.4°F
86%
0.13 in
74%
0%
4.3 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 6.63 μg/m3
PM10: 7.5 μg/m3
Carbon Monoxide: 184.5 μg/m3
Nitrogen Dioxide: 6.18 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 62.13 μg/m3

Astronomical

Sunrise: 5:19 AM
Sun Transit: 1:12 PM
Sunset: 9:05 PM
Daylight: 15 hrs 46 mins
Moonrise: 10:58 PM
Moon Transit: 3:03 AM
Moonset: 7:40 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

2:33 AM - 5:03 AM
2:39 PM - 5:09 PM

Minor Periods

10:28 PM - 11:58 PM
7:10 AM - 8:40 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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