Water Temperature of Lake Superior in Grand Marais, MN

Current Water Temperature

41.0°F

Measurement Time: Thursday, January 15, 2026, 6:20 AM CST

Temperature Locations

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Lake Superior

Station Name: Grand Marais
Data Source: USGS

Elevation Above Sea Level: 607 feet

Nearest Address:
2nd Street
Grand Marais, MN 55604
Cook County

GPS Coordinates: 47.7517, -90.3283

Nearby Water Temperatures

Grand Marais Harbor, Grand Marais, MN (0.6 mi)
Poplar River, Lutsen, MN (19.4 mi)
Grand Portage River, Grand Portage, MN (33.3 mi)
Lake Superior, Lake Superior, MI (38.1 mi)
Baptism River, Illgen City, MN (49.7 mi)
Washington Creek, Windigo, MI (56.1 mi)
Kawishiwi River, Ely, MN (57.2 mi)
Dunka River, Babbitt, MN (71.4 mi)
Dunka River, Babbitt, MN (71.7 mi)
Partrige River, Babbitt, MN (74.9 mi)
Lake Superior, Two Harbors, MN (80.5 mi)
Chequamegon Bay, Ashland, WI (81.7 mi)
Saint Louis River, Hoyt Lakes, MN (81.9 mi)
Lake Superior, Calumet, MI (86.9 mi)
Presque Isle River, Tula, MI (87.2 mi)

Weather for Grand Marais, Minnesota

Current Weather

9.1°F

Conditions: Light snow

Feels Like: -10°F

Heat Index: 8°F

Humidity: 85%

Wind: NNW 19.9 mph

Wind Gusts: 23.8 mph

Wind Chill: -10°F

Dew Point: -0.1°F

Precipitation: 0 in

Cloud Cover: 100%

Visibility: 6 mi

Air Pressure: 1009 mbar

UV Index: 0.2

Five Day Weather Forecast

Sat
H: 11°F
L: 5°F

Sun
H: 10°F
L: -7°F

Mon
H: -3°F
L: -12°F

Tue
H: -5°F
L: -16°F

Wed
H: 15°F
L: -5°F

Air Quality

PM2.5: 0.78 μg/m3

PM10: 0.88 μg/m3

Carbon Monoxide: 138.68 μg/m3
Nitrogen Dioxide: 0.88 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 67 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 12:11 AM
Sunset: 4:40 PM
Daylight: 8 hrs 56 mins

Moonrise: 7:30 AM
Moon Transit: 11:20 AM
Moonset: 3:14 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:50 AM - 1:20 PM

Minor Periods

2:44 PM - 4:14 PM
7:00 AM - 8:30 AM

Action Rating: 4 out of 5

Saturday, January 17, 2026

Weather Forecast

Conditions: Partly Cloudy

High Temperature: 10.8°F

Low Temperature: 4.6°F

Average Temperature: 9.5°F

Average Humidity: 69%

Precipitation: 0 in

Chance of Rain: 0%

Chance of Snow: 6%

Maximum Wind: 20.6 mph

UV Index: 0.1

Air Quality

AQI: 1 - Good

PM2.5: 0.78 μg/m3

PM10: 0.86 μg/m3

Carbon Monoxide: 142.15 μg/m3
Nitrogen Dioxide: 0.86 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 65.88 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 12:11 AM
Sunset: 4:40 PM
Daylight: 8 hrs 56 mins

Moonrise: 7:30 AM
Moon Transit: 11:20 AM
Moonset: 3:14 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:50 AM - 1:20 PM

Minor Periods

2:44 PM - 4:14 PM
7:00 AM - 8:30 AM

Action Rating: 4 out of 5

Sunday, January 18, 2026

Weather Forecast

Conditions: Light freezing rain

High Temperature: 9.5°F

Low Temperature: -6.9°F

Average Temperature: 1.4°F

Average Humidity: 85%

Precipitation: 0.01 in

Chance of Rain: 73%

Chance of Snow: 49%

Maximum Wind: 13.6 mph

UV Index: 0.1

Air Quality

AQI: 1 - Good

PM2.5: 0.92 μg/m3

PM10: 0.99 μg/m3

Carbon Monoxide: 152.25 μg/m3
Nitrogen Dioxide: 1.04 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 65.85 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 12:11 AM
Sunset: 4:41 PM
Daylight: 8 hrs 58 mins

Moonrise: 8:05 AM
Moon Transit: 12:11 AM
Moonset: 4:26 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:41 AM - 2:11 PM

Minor Periods

3:56 PM - 5:26 PM
7:35 AM - 9:05 AM

Action Rating: 4 out of 5

Monday, January 19, 2026

Weather Forecast

Conditions: Cloudy

High Temperature: -3.4°F

Low Temperature: -12.4°F

Average Temperature: -6.7°F

Average Humidity: 88%

Precipitation: 0 in

Chance of Rain: 0%

Chance of Snow: 25%

Maximum Wind: 15.2 mph

UV Index: 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: 7:42 AM
Sun Transit: 12:12 AM
Sunset: 4:43 PM
Daylight: 9 hrs 1 mins

Moonrise: 8:32 AM
Moon Transit: 1:00 PM
Moonset: 5:40 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

12:03 AM - 2:33 AM
12:30 AM - 3:00 PM

Minor Periods

5:10 PM - 6:40 PM
8:02 AM - 9:32 AM

Action Rating: 5 out of 5

Tuesday, January 20, 2026

Weather Forecast

Conditions: Partly Cloudy

High Temperature: -5.4°F

Low Temperature: -16°F

Average Temperature: -10.6°F

Average Humidity: 88%

Precipitation: 0 in

Chance of Rain: 0%

Chance of Snow: 11%

Maximum Wind: 12.3 mph

UV Index: 2

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: 7:41 AM
Sun Transit: 12:12 AM
Sunset: 4:44 PM
Daylight: 9 hrs 3 mins

Moonrise: 8:53 AM
Moon Transit: 1:47 PM
Moonset: 6:55 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

12:51 AM - 3:21 AM
1:17 PM - 3:47 PM

Minor Periods

6:25 PM - 7:55 PM
8:23 AM - 9:53 AM

Action Rating: 3 out of 5

Wednesday, January 21, 2026

Weather Forecast

Conditions: Moderate snow

High Temperature: 14.5°F

Low Temperature: -4.9°F

Average Temperature: 4.8°F

Average Humidity: 87%

Precipitation: 0.02 in

Chance of Rain: 65%

Chance of Snow: 35%

Maximum Wind: 8.9 mph

UV Index: 1

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: 7:40 AM
Sun Transit: 12:12 AM
Sunset: 4:46 PM
Daylight: 9 hrs 5 mins

Moonrise: 9:10 AM
Moon Transit: 2:33 PM
Moonset: 8:09 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

1:38 AM - 4:08 AM
2:03 PM - 4:33 PM

Minor Periods

7:39 PM - 9:09 PM
8:40 AM - 10:10 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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Water Temperature of Lake Superior in Grand Marais, MN

Current Water Temperature

Temperature Locations

Nearby Water Temperatures

Weather for Grand Marais, Minnesota

Current Weather

Five Day Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

Weather Forecast

Air Quality

Astronomical

Best Times for Fishing or Hunting

Major Periods

Minor Periods

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