Water Temperature of Lake Superior in Superior, WI

Current Water Temperature

38.8°F

Measurement Time: Tuesday, November 25, 2025, 7:15 AM CST

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

36°F
Mist
Mist
33.9°F
37.7°F
100%
NE 2.9 mph
6.1 mph
30.9°F
37.2°F
0 in
100%
0 mi
1001 mbar
0.9

Five Day Weather Forecast

Patchy rain nearby
Sun
H: 52°F
L: 37°F
Heavy rain
Mon
H: 48°F
L: 37°F
Moderate rain
Tue
H: 47°F
L: 34°F
Partly Cloudy
Wed
H: 50°F
L: 34°F
Patchy rain nearby
Thu
H: 48°F
L: 34°F

Air Quality

AQI: 1 - Good
PM2.5: 5.45 μg/m3
PM10: 7.15 μg/m3
Carbon Monoxide: 182.85 μg/m3
Nitrogen Dioxide: 3.95 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 90 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 1:09 PM
Sunset: 7:53 PM
Daylight: 13 hrs 26 mins
Moonrise: 4:26 AM
Moon Transit: 9:16 AM
Moonset: 2:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%

Best Times for Fishing or Hunting

Major Periods

8:46 AM - 11:16 AM
8:52 PM - 11:22 PM

Minor Periods

1:48 PM - 3:18 PM
3:56 AM - 5:26 AM

Action Rating: 2 out of 5

Flood Watch issued April 12 at 3:16AM CDT until April 15 at 7:00AM CDT by NWS Duluth MN

Effective: Sun April 12, 2026, 3:16 AM
Expires: Mon April 13, 2026, 3:30 AM

Heavy rain on top of the existing snowpack may increase the rate of snowmelt. The resultant runoff may cause water levels in area rivers to increase and flooding is possible. * WHAT...Flooding caused by rain and snowmelt continues to be possible. * WHERE...In Wisconsin, Ashland, Bayfield and Iron Counties. This includes the Tribal Lands of the Red Cliff Band, the northwestern county of the Lac du Flambeau Band and the Bad River Reservation. Other locations including the Apostle Islands National Lakeshore and Madeline Island. * WHEN...Through Wednesday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Around 1 to 3 inches of rain is expected to fall over several inches of lingering snowpack along the South Shore of Lake Superior. Areas of minor flooding are possible in the Bayfield Peninsula and east over northern Ashland and Iron counties. - Flood safety information can be found at www.weather.gov/safety/flood.

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.


Sunday, April 12, 2026

Weather Forecast

Patchy rain nearby
52.2°F
37.2°F
40.8°F
97%
0.1 in
89%
0%
6.9 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 5.51 μg/m3
PM10: 6.2 μg/m3
Carbon Monoxide: 177.61 μg/m3
Nitrogen Dioxide: 4.16 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 83 μg/m3

Astronomical

Sunrise: 6:27 AM
Sun Transit: 1:09 PM
Sunset: 7:53 PM
Daylight: 13 hrs 26 mins
Moonrise: 4:26 AM
Moon Transit: 9:16 AM
Moonset: 2:18 PM
Moon Phase: Waning Crescent
Moon Illumination: 12.6%

Best Times for Fishing or Hunting

Major Periods

8:46 AM - 11:16 AM
8:52 PM - 11:22 PM

Minor Periods

1:48 PM - 3:18 PM
3:56 AM - 5:26 AM

Action Rating: 2 out of 5

Monday, April 13, 2026

Weather Forecast

Heavy rain
48°F
36.6°F
44.2°F
97%
1.99 in
78%
0%
18.8 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 6.2 μg/m3
PM10: 7.43 μg/m3
Carbon Monoxide: 198.65 μg/m3
Nitrogen Dioxide: 5.3 μg/m3
Sulphur Dioxide: 1.87 μg/m3
Ozone: 71.12 μg/m3

Astronomical

Sunrise: 6:25 AM
Sun Transit: 1:08 PM
Sunset: 7:54 PM
Daylight: 13 hrs 29 mins
Moonrise: 4:46 AM
Moon Transit: 10:02 AM
Moonset: 3:31 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:32 AM - 12:02 AM

Minor Periods

3:01 PM - 4:31 PM
4:16 AM - 5:46 AM

Action Rating: 2 out of 5

Tuesday, April 14, 2026

Weather Forecast

Moderate rain
47.1°F
34.2°F
39.6°F
93%
0.21 in
68%
0%
17.7 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 4.11 μg/m3
PM10: 5.59 μg/m3
Carbon Monoxide: 152.93 μg/m3
Nitrogen Dioxide: 3 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 88.36 μg/m3

Astronomical

Sunrise: 6:23 AM
Sun Transit: 1:08 PM
Sunset: 7:55 PM
Daylight: 13 hrs 33 mins
Moonrise: 5:03 AM
Moon Transit: 10:48 AM
Moonset: 4:47 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:18 AM - 12:48 AM

Minor Periods

4:17 PM - 5:47 PM
4:33 AM - 6:03 AM

Action Rating: 3 out of 5

Wednesday, April 15, 2026

Weather Forecast

Partly Cloudy
49.8°F
34.3°F
41.6°F
83%
0 in
0%
0%
12.5 mph
1.1


Air Quality

AQI: 1 - Good
PM2.5: 2.92 μg/m3
PM10: 3.87 μg/m3
Carbon Monoxide: 154.45 μg/m3
Nitrogen Dioxide: 2.49 μg/m3
Sulphur Dioxide: 1.33 μg/m3
Ozone: 83.56 μg/m3

Astronomical

Sunrise: 6:21 AM
Sun Transit: 1:08 PM
Sunset: 7:57 PM
Daylight: 13 hrs 36 mins
Moonrise: 5:21 AM
Moon Transit: 10:33 AM
Moonset: 6:05 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

10:03 AM - 12:33 AM
10:03 AM - 12:33 AM

Minor Periods

5:35 PM - 7:05 PM
4:51 AM - 6:21 AM

Action Rating: 3 out of 5

Thursday, April 16, 2026

Weather Forecast

Patchy rain nearby
48.3°F
33.6°F
39°F
90%
0.02 in
86%
4%
13.2 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.8 μg/m3
PM10: 3.13 μg/m3
Carbon Monoxide: 174.33 μg/m3
Nitrogen Dioxide: 3.57 μg/m3
Sulphur Dioxide: 1.43 μg/m3
Ozone: 76.08 μg/m3

Astronomical

Sunrise: 6:19 AM
Sun Transit: 1:08 PM
Sunset: 7:58 PM
Daylight: 13 hrs 39 mins
Moonrise: 5:39 AM
Moon Transit: 12:23 AM
Moonset: 7:26 PM
Moon Phase: New
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:53 AM - 2:23 PM

Minor Periods

6:56 PM - 8:26 PM
5:09 AM - 6:39 AM

Action Rating: 5 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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