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

57.4°F
Sunny
Sunny
55.6°F
54.4°F
41%
N 8.5 mph
16 mph
51.3°F
32.8°F
0 in
0%
9 mi
1013 mbar
0.1

Five Day Weather Forecast

Sunny
Sat
H: 68°F
L: 49°F
Patchy rain nearby
Sun
H: 46°F
L: 39°F
Heavy rain
Mon
H: 52°F
L: 42°F
Patchy rain nearby
Tue
H: 44°F
L: 40°F
Partly Cloudy
Wed
H: 52°F
L: 38°F

Air Quality

AQI: 1 - Good
PM2.5: 1.75 μg/m3
PM10: 1.75 μg/m3
Carbon Monoxide: 123.85 μg/m3
Nitrogen Dioxide: 3.15 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 62 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 1:04 PM
Sunset: 8:38 PM
Daylight: 15 hrs 6 mins
Moonrise: 4:53 AM
Moon Transit: 12:54 AM
Moonset: 9:13 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:24 AM - 2:54 PM

Minor Periods

8:43 PM - 10:13 PM
4:23 AM - 5:53 AM

Action Rating: 5 out of 5

Special Weather Statement issued May 16 at 9:57AM CDT by NWS Duluth MN

Effective: Sat May 16, 2026, 9:57 AM
Expires: Sat May 16, 2026, 9:00 PM

Dry conditions and gusty winds will lead to near-critical fire weather conditions Saturday. West winds of 5 to 15 mph with gusts of 20 to 25 mph are forecast, gradually turning northwest this afternoon as a cold front moves through the area. Minimum relative humidity values of 18 to 26 percent are also expected. 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 Wisconsin, see apps.dnr.wi.gov/wisburn.


Red Flag Warning issued May 16 at 9:54AM CDT until May 16 at 9:00PM CDT by NWS Duluth MN

Effective: Sat May 16, 2026, 9:54 AM
Expires: Sat May 16, 2026, 9:00 PM

The National Weather Service in Duluth has issued a Red Flag Warning for wind and low relative humidity, which is in effect until 9 PM CDT this evening. * AFFECTED AREA...In Minnesota, South Cass, Crow Wing, Northern Aitkin, South Aitkin, Carlton and South St. Louis and Pine. * WINDS...Northwest 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 22 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
Saturday, May 16, 2026

Weather Forecast

Sunny
68°F
48.7°F
58°F
41%
0 in
0%
0%
17 mph
6.7


Air Quality

AQI: 1 - Good
PM2.5: 6.23 μg/m3
PM10: 7.02 μg/m3
Carbon Monoxide: 146.89 μg/m3
Nitrogen Dioxide: 4.56 μg/m3
Sulphur Dioxide: 1.81 μg/m3
Ozone: 85.32 μg/m3

Astronomical

Sunrise: 5:32 AM
Sun Transit: 1:04 PM
Sunset: 8:38 PM
Daylight: 15 hrs 6 mins
Moonrise: 4:53 AM
Moon Transit: 12:54 AM
Moonset: 9:13 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:24 AM - 2:54 PM

Minor Periods

8:43 PM - 10:13 PM
4:23 AM - 5:53 AM

Action Rating: 5 out of 5

Sunday, May 17, 2026

Weather Forecast

Patchy rain nearby
45.8°F
39.3°F
42.8°F
81%
0.18 in
88%
0%
23 mph
6.2


Air Quality

AQI: 1 - Good
PM2.5: 1.79 μg/m3
PM10: 1.85 μg/m3
Carbon Monoxide: 123.45 μg/m3
Nitrogen Dioxide: 2.86 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 63.68 μg/m3

Astronomical

Sunrise: 5:31 AM
Sun Transit: 1:04 PM
Sunset: 8:39 PM
Daylight: 15 hrs 8 mins
Moonrise: 5:32 AM
Moon Transit: 1:58 PM
Moonset: 10:36 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:38 AM - 3:08 AM
1:28 PM - 3:58 PM

Minor Periods

10:06 PM - 11:36 PM
5:02 AM - 6:32 AM

Action Rating: 4 out of 5

Monday, May 18, 2026

Weather Forecast

Heavy rain
51.9°F
41.6°F
46.3°F
98%
1.84 in
89%
0%
18.3 mph
2.2


Air Quality

AQI: 1 - Good
PM2.5: 1.57 μg/m3
PM10: 1.6 μg/m3
Carbon Monoxide: 123.09 μg/m3
Nitrogen Dioxide: 2.69 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 62.12 μg/m3

Astronomical

Sunrise: 5:30 AM
Sun Transit: 1:04 PM
Sunset: 8:40 PM
Daylight: 15 hrs 10 mins
Moonrise: 6:27 AM
Moon Transit: 3:05 PM
Moonset: 11:44 PM
Moon Phase: New
Moon Illumination: 2.6%

Best Times for Fishing or Hunting

Major Periods

1:44 AM - 4:14 AM
2:35 PM - 5:05 PM

Minor Periods

12:00 AM - 12:00 AM
5:57 AM - 7:27 AM

Action Rating: 4 out of 5

Tuesday, May 19, 2026

Weather Forecast

Patchy rain nearby
43.9°F
40°F
42°F
91%
0.18 in
86%
0%
14.5 mph
1.5


Air Quality

AQI: 1 - Good
PM2.5: 1.44 μg/m3
PM10: 1.45 μg/m3
Carbon Monoxide: 123.28 μg/m3
Nitrogen Dioxide: 3.15 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 61.08 μg/m3

Astronomical

Sunrise: 5:29 AM
Sun Transit: 1:04 PM
Sunset: 8:41 PM
Daylight: 15 hrs 13 mins
Moonrise: 7:36 AM
Moon Transit: 4:11 PM
Moonset: 12:44 AM
Moon Phase: Waxing Crescent
Moon Illumination: 7.4%

Best Times for Fishing or Hunting

Major Periods

2:51 AM - 5:21 AM
3:41 PM - 6:11 PM

Minor Periods

7:06 AM - 8:36 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, May 20, 2026

Weather Forecast

Partly Cloudy
52.1°F
38.1°F
44.4°F
64%
0 in
0%
0%
9.4 mph
6.5


Air Quality

AQI: 1 - Good
PM2.5: 1.33 μg/m3
PM10: 1.35 μg/m3
Carbon Monoxide: 122.57 μg/m3
Nitrogen Dioxide: 2.59 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 74 μg/m3

Astronomical

Sunrise: 5:28 AM
Sun Transit: 1:04 PM
Sunset: 8:43 PM
Daylight: 15 hrs 15 mins
Moonrise: 8:56 AM
Moon Transit: 5:13 PM
Moonset: 12:37 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

3:56 AM - 6:26 AM
4:43 PM - 7:13 PM

Minor Periods

8:26 AM - 9:56 AM
12:07 AM - 1:37 AM

Action Rating: 2 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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