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

43°F
Overcast
Overcast
37.3°F
42.9°F
75%
WNW 10.1 mph
17.3 mph
36.1°F
38.7°F
0.01 in
100%
9 mi
1004 mbar
0

Five Day Weather Forecast

Moderate rain
Fri
H: 58°F
L: 41°F
Patchy rain nearby
Sat
H: 49°F
L: 37°F
Moderate rain
Sun
H: 42°F
L: 38°F
Heavy rain
Mon
H: 40°F
L: 38°F
Overcast
Tue
H: 53°F
L: 41°F

Air Quality

PM2.5: 1.75 μg/m3
PM10: 1.75 μg/m3
Carbon Monoxide: 179.85 μg/m3
Nitrogen Dioxide: 2.65 μg/m3
Sulphur Dioxide: 1.85 μg/m3
Ozone: 85 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 1:06 PM
Sunset: 8:09 PM
Daylight: 14 hrs 4 mins
Moonrise: 12:34 AM
Moon Transit: 8:15 PM
Moonset: 3:15 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

7:02 AM - 9:32 AM
7:45 PM - 10:15 PM

Minor Periods

12:04 AM - 1:34 PM
2:45 AM - 4:15 AM

Action Rating: 3 out of 5

Special Weather Statement issued April 23 at 11:42PM CDT by NWS Duluth MN

Effective: Thu April 23, 2026, 11:42 PM
Expires: Fri April 24, 2026, 1:45 AM

Areas of locally dense fog will affect the higher terrain areas around the Twin Ports, including Proctor, Hermantown, Piedmont, and Duluth Heights areas. Visibilities of 1/2 to 1/4 mile are expected for the next hour or two. Visibilities are expected to improve tonight. If traveling, reduce your speed and use low-beam headlights when encountering foggy areas.


Flood Advisory issued April 23 at 10:51PM CDT until April 24 at 2:00AM CDT by NWS Duluth MN

Effective: Thu April 23, 2026, 10:51 PM
Expires: Fri April 24, 2026, 2:00 AM

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...In Wisconsin, Ashland and Bayfield Counties. * WHEN...Until 200 AM CDT Friday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 1051 PM CDT Thursday, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. - Some locations that will experience flooding include... Ashland, Sanborn, Marengo, Benoit, Odanah, Namekagon Lake, Mason, Grand View, Bad River Reservation, New Odanah and Lake Owen. - Flood safety information can be found at www.weather.gov/safety/flood.

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Friday, April 24, 2026

Weather Forecast

Moderate rain
57.5°F
40.8°F
47.7°F
63%
0.4 in
85%
0%
12.1 mph
5.6


Air Quality

AQI: 1 - Good
PM2.5: 2.05 μg/m3
PM10: 2.19 μg/m3
Carbon Monoxide: 182.25 μg/m3
Nitrogen Dioxide: 3.54 μg/m3
Sulphur Dioxide: 1.68 μg/m3
Ozone: 85.28 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 1:06 PM
Sunset: 8:09 PM
Daylight: 14 hrs 4 mins
Moonrise: 12:34 AM
Moon Transit: 8:15 PM
Moonset: 3:15 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

7:02 AM - 9:32 AM
7:45 PM - 10:15 PM

Minor Periods

12:04 AM - 1:34 PM
2:45 AM - 4:15 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Patchy rain nearby
49°F
36.8°F
43.4°F
61%
0.03 in
80%
0%
5.8 mph
5.3


Air Quality

AQI: 1 - Good
PM2.5: 5.19 μg/m3
PM10: 5.53 μg/m3
Carbon Monoxide: 183.61 μg/m3
Nitrogen Dioxide: 5.81 μg/m3
Sulphur Dioxide: 2.62 μg/m3
Ozone: 81.8 μg/m3

Astronomical

Sunrise: 6:03 AM
Sun Transit: 1:06 PM
Sunset: 8:10 PM
Daylight: 14 hrs 7 mins
Moonrise: 1:51 PM
Moon Transit: 9:03 PM
Moonset: 3:39 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

7:52 AM - 10:22 AM
8:33 PM - 11:03 PM

Minor Periods

1:21 PM - 2:51 PM
3:09 AM - 4:39 AM

Action Rating: 3 out of 5

Sunday, April 26, 2026

Weather Forecast

Moderate rain
41.7°F
38.2°F
40.1°F
97%
0.35 in
84%
0%
12.3 mph
1.6


Air Quality

AQI: 1 - Good
PM2.5: 11.23 μg/m3
PM10: 14.36 μg/m3
Carbon Monoxide: 181.29 μg/m3
Nitrogen Dioxide: 9.64 μg/m3
Sulphur Dioxide: 3 μg/m3
Ozone: 76.76 μg/m3

Astronomical

Sunrise: 6:01 AM
Sun Transit: 1:06 PM
Sunset: 8:12 PM
Daylight: 14 hrs 10 mins
Moonrise: 3:05 PM
Moon Transit: 9:47 PM
Moonset: 3:59 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%

Best Times for Fishing or Hunting

Major Periods

8:38 AM - 11:08 AM
9:17 PM - 11:47 PM

Minor Periods

2:35 PM - 4:05 PM
3:29 AM - 4:59 AM

Action Rating: 2 out of 5

Monday, April 27, 2026

Weather Forecast

Heavy rain
40.3°F
37.6°F
39.8°F
96%
1.6 in
87%
0%
22.6 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 8.59 μg/m3
PM10: 11.92 μg/m3
Carbon Monoxide: 171.81 μg/m3
Nitrogen Dioxide: 3.66 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 90.46 μg/m3

Astronomical

Sunrise: 6:00 AM
Sun Transit: 1:05 PM
Sunset: 8:13 PM
Daylight: 14 hrs 13 mins
Moonrise: 4:16 PM
Moon Transit: 10:30 PM
Moonset: 4:16 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%

Best Times for Fishing or Hunting

Major Periods

9:22 AM - 11:52 AM
12:00 AM - 12:00 AM

Minor Periods

3:46 PM - 5:16 PM
3:46 AM - 5:16 AM

Action Rating: 2 out of 5

Tuesday, April 28, 2026

Weather Forecast

Overcast
52.8°F
41.2°F
44.8°F
77%
0 in
0%
0%
16.1 mph
0


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 1:05 PM
Sunset: 8:14 PM
Daylight: 14 hrs 16 mins
Moonrise: 5:24 PM
Moon Transit: 11:12 PM
Moonset: 4:32 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 89.6%

Best Times for Fishing or Hunting

Major Periods

10:04 AM - 12:34 AM
12:00 AM - 12:00 AM

Minor Periods

4:54 PM - 6:24 PM
4:02 AM - 5:32 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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