Water Temperature of Grand Marais Harbor in Grand Marais, MN

Current Water Temperature

50.5°F

Measurement Time: Friday, November 28, 2025, 2:18 AM CST

Temperature Locations

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Local Points of Interest

Lake Superior; Grand Marais Campground and Marina; Grand Marais Municipal Arena

Grand Marais Harbor

Station Name: 9099090 - Grand Marais, MN
Station Type: Fixed
Data Source: National Data Buoy Center

Elevation Above Sea Level: 617 feet

Nearest Address:
391 MN-61
Grand Marais, MN 55604
Cook County

GPS Coordinates: 47.749, -90.341

Nearby Water Temperatures

Lake Superior, Grand Marais, MN (0.6 mi)
Poplar River, Lutsen, MN (18.8 mi)
Grand Portage River, Grand Portage, MN (33.9 mi)
Lake Superior, Lake Superior, MI (38.4 mi)
Baptism River, Illgen City, MN (49.1 mi)
Kawishiwi River, Ely, MN (56.7 mi)
Washington Creek, Windigo, MI (56.7 mi)
Dunka River, Babbitt, MN (70.8 mi)
Dunka River, Babbitt, MN (71.1 mi)
Partrige River, Babbitt, MN (74.2 mi)
Lake Superior, Two Harbors, MN (79.9 mi)
Saint Louis River, Hoyt Lakes, MN (81.3 mi)
Chequamegon Bay, Ashland, WI (81.3 mi)
Presque Isle River, Tula, MI (87.2 mi)
Lake Superior, Calumet, MI (87.4 mi)

Weather for Grand Marais, Minnesota

Current Weather

26.1°F
Patchy moderate snow
Patchy moderate snow
15.1°F
27.4°F
88%
WSW 12.3 mph
19.2 mph
14.9°F
23.8°F
0.06 in
0%
1 mi
1014 mbar
0

Five Day Weather Forecast

Moderate or heavy snow showers
Sun
H: 28°F
L: 14°F
Cloudy
Mon
H: 34°F
L: 26°F
Overcast
Tue
H: 37°F
L: 27°F
Partly Cloudy
Wed
H: 16°F
L: 5°F
Moderate or heavy snow showers
Thu
H: 23°F
L: 1°F

Air Quality

AQI: 1 - Good
PM2.5: 4.28 μg/m3
PM10: 5.38 μg/m3
Carbon Monoxide: 170.68 μg/m3
Nitrogen Dioxide: 2.28 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 74 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 12:09 AM
Sunset: 4:32 PM
Daylight: 8 hrs 44 mins
Moonrise: 1:24 AM
Moon Transit: 6:25 AM
Moonset: 11:18 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

5:55 AM - 8:25 AM
6:14 PM - 8:44 PM

Minor Periods

10:48 AM - 12:18 AM
12:54 AM - 2:24 AM

Action Rating: 2 out of 5

Sunday, January 11, 2026

Weather Forecast

Moderate or heavy snow showers
27.7°F
14.4°F
21.5°F
76%
0.09 in
78%
17%
16.6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 0.98 μg/m3
PM10: 1.06 μg/m3
Carbon Monoxide: 177.8 μg/m3
Nitrogen Dioxide: 1.33 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 75.36 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 12:09 AM
Sunset: 4:32 PM
Daylight: 8 hrs 44 mins
Moonrise: 1:24 AM
Moon Transit: 6:25 AM
Moonset: 11:18 AM
Moon Phase: Last Quarter
Moon Illumination: 35.3%

Best Times for Fishing or Hunting

Major Periods

5:55 AM - 8:25 AM
6:14 PM - 8:44 PM

Minor Periods

10:48 AM - 12:18 AM
12:54 AM - 2:24 AM

Action Rating: 2 out of 5

Monday, January 12, 2026

Weather Forecast

Cloudy
33.8°F
26.1°F
29.9°F
84%
0 in
0%
0%
11 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.77 μg/m3
PM10: 3.35 μg/m3
Carbon Monoxide: 166.32 μg/m3
Nitrogen Dioxide: 2.25 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 78.88 μg/m3

Astronomical

Sunrise: 7:47 AM
Sun Transit: 12:09 AM
Sunset: 4:33 PM
Daylight: 8 hrs 46 mins
Moonrise: 2:33 AM
Moon Transit: 7:09 AM
Moonset: 11:37 AM
Moon Phase: Last Quarter
Moon Illumination: 25.0%

Best Times for Fishing or Hunting

Major Periods

6:39 AM - 9:09 AM
6:59 PM - 9:29 PM

Minor Periods

11:07 AM - 12:37 AM
2:03 AM - 3:33 AM

Action Rating: 2 out of 5

Tuesday, January 13, 2026

Weather Forecast

Overcast
37.2°F
26.8°F
31.5°F
88%
0 in
0%
0%
23.5 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 3.38 μg/m3
PM10: 3.61 μg/m3
Carbon Monoxide: 177.48 μg/m3
Nitrogen Dioxide: 3.22 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 75.4 μg/m3

Astronomical

Sunrise: 7:46 AM
Sun Transit: 12:10 AM
Sunset: 4:34 PM
Daylight: 8 hrs 48 mins
Moonrise: 3:41 AM
Moon Transit: 7:55 AM
Moonset: 12:02 AM
Moon Phase: Waning Crescent
Moon Illumination: 15.9%

Best Times for Fishing or Hunting

Major Periods

7:25 AM - 9:55 AM
7:46 PM - 10:16 PM

Minor Periods

11:32 AM - 1:02 PM
3:11 AM - 4:41 AM

Action Rating: 3 out of 5

Wednesday, January 14, 2026

Weather Forecast

Partly Cloudy
16.2°F
5.4°F
12.5°F
67%
0 in
0%
0%
23.7 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 0.82 μg/m3
PM10: 0.89 μg/m3
Carbon Monoxide: 156.68 μg/m3
Nitrogen Dioxide: 0.92 μg/m3
Sulphur Dioxide: 0.82 μg/m3
Ozone: 77.32 μg/m3

Astronomical

Sunrise: 7:46 AM
Sun Transit: 12:10 AM
Sunset: 4:36 PM
Daylight: 8 hrs 50 mins
Moonrise: 4:49 AM
Moon Transit: 8:44 AM
Moonset: 12:35 AM
Moon Phase: Waning Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

8:14 AM - 10:44 AM
8:36 PM - 11:06 PM

Minor Periods

12:05 AM - 1:35 PM
4:19 AM - 5:49 AM

Action Rating: 3 out of 5

Thursday, January 15, 2026

Weather Forecast

Moderate or heavy snow showers
23.3°F
1.3°F
14.3°F
82%
0.08 in
63%
13%
20.6 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 1.04 μg/m3
PM10: 1.15 μg/m3
Carbon Monoxide: 146.99 μg/m3
Nitrogen Dioxide: 1.04 μg/m3
Sulphur Dioxide: 0.89 μg/m3
Ozone: 74.62 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 12:10 AM
Sunset: 4:37 PM
Daylight: 8 hrs 52 mins
Moonrise: 5:51 AM
Moon Transit: 9:35 AM
Moonset: 1:17 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

9:28 PM - 11:58 PM
9:05 AM - 11:35 AM

Minor Periods

12:47 AM - 2:17 PM
5:21 AM - 6:51 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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