Water Temperature of Grand Marais Harbor in Grand Marais, MN

Current Water Temperature

44.6°F

Measurement Time: Friday, June 13, 2025, 2:00 AM CDT

Temperature Locations

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Local Points of Interest

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

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Grand Marais Harbor

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

Elevation Above Sea Level: 617 feet / 188 meters

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

48.9°F
Partly Cloudy
Conditions: Partly Cloudy
Humidity: 61%
Feels Like: 46.2°F
Wind: NE 6.3 mph
Wind Gusts: 13.2 mph
Pressure: 30.23 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0

Five Day Weather Forecast

Patchy rain nearby
Fri
H: 54°F
L: 44°F
Moderate rain
Sat
H: 47°F
L: 43°F
Overcast
Sun
H: 53°F
L: 44°F
Patchy rain nearby
Mon
H: 70°F
L: 47°F
Patchy rain nearby
Tue
H: 58°F
L: 50°F

Air Quality

AQI: 1 - Good
PM2.5: 3.86 μg/m3
PM10: 4.2 μg/m3
Carbon Monoxide: 246.7 μg/m3
Nitrogen Dioxide: 1.51 μg/m3
Sulphur Dioxide: 0.17 μg/m3
Ozone: 68 μg/m3

Astronomical

Sunrise: 5:02 AM
Sun Transit: 1:01 PM
Sunset: 9:01 PM
Daylight: 15 hrs 58 mins
Moonrise: 11:32 PM
Moon Transit: 2:43 AM
Moonset: 6:36 AM
Moon Phase: Waning Gibbous
Moon Illumination: 89.2%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
2:37 PM - 5:07 PM

Minor Periods

12:00 AM - 12:00 AM
6:06 AM - 7:36 AM

Action Rating: 3 out of 5

Friday, June 13, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 47.8°F
Average Humidity: 74%
Chance of Rain: 66%
Wind: 11 mph
UV Index: 1.6

Air Quality

AQI: 1 - Good
PM2.5: 4.36 μg/m3
PM10: 4.79 μg/m3
Carbon Monoxide: 242.4 μg/m3
Nitrogen Dioxide: 1.32 μg/m3
Sulphur Dioxide: 0.11 μg/m3
Ozone: 65.88 μg/m3

Astronomical

Sunrise: 5:02 AM
Sun Transit: 1:01 PM
Sunset: 9:01 PM
Daylight: 15 hrs 58 mins
Moonrise: 11:32 PM
Moon Transit: 2:43 AM
Moonset: 6:36 AM
Moon Phase: Waning Gibbous
Moon Illumination: 89.2%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
2:37 PM - 5:07 PM

Minor Periods

12:00 AM - 12:00 AM
6:06 AM - 7:36 AM

Action Rating: 3 out of 5

Saturday, June 14, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 45°F
Average Humidity: 96%
Chance of Rain: 89%
Wind: 9.4 mph
UV Index: 0.7

Air Quality

AQI: 1 - Good
PM2.5: 9.42 μg/m3
PM10: 10.41 μg/m3
Carbon Monoxide: 211.12 μg/m3
Nitrogen Dioxide: 1.17 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 68.16 μg/m3

Astronomical

Sunrise: 5:02 AM
Sun Transit: 1:01 PM
Sunset: 9:01 PM
Daylight: 15 hrs 59 mins
Moonrise: 12:32 AM
Moon Transit: 3:36 AM
Moonset: 7:48 AM
Moon Phase: Waning Gibbous
Moon Illumination: 81.2%

Best Times for Fishing or Hunting

Major Periods

3:06 AM - 5:36 AM
3:30 PM - 6:00 PM

Minor Periods

7:18 AM - 8:48 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, June 15, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 48.3°F
Average Humidity: 92%
Chance of Rain: 0%
Wind: 9.4 mph
UV Index: 1.9

Air Quality

AQI: 1 - Good
PM2.5: 9.52 μg/m3
PM10: 10.91 μg/m3
Carbon Monoxide: 226.49 μg/m3
Nitrogen Dioxide: 1.75 μg/m3
Sulphur Dioxide: 0.68 μg/m3
Ozone: 70.4 μg/m3

Astronomical

Sunrise: 5:02 AM
Sun Transit: 1:02 PM
Sunset: 9:02 PM
Daylight: 15 hrs 59 mins
Moonrise: 12:00 AM
Moon Transit: 4:27 AM
Moonset: 9:05 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.7%

Best Times for Fishing or Hunting

Major Periods

3:57 AM - 6:27 AM
4:19 PM - 6:49 PM

Minor Periods

8:35 AM - 10:05 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, June 16, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 59.9°F
Average Humidity: 81%
Chance of Rain: 89%
Wind: 11.4 mph
UV Index: 2.1

Air Quality

AQI: 2 - Moderate
PM2.5: 19.85 μg/m3
PM10: 21.61 μg/m3
Carbon Monoxide: 277.31 μg/m3
Nitrogen Dioxide: 3.66 μg/m3
Sulphur Dioxide: 0.23 μg/m3
Ozone: 66.04 μg/m3

Astronomical

Sunrise: 5:02 AM
Sun Transit: 1:02 PM
Sunset: 9:02 PM
Daylight: 16 hrs mins
Moonrise: 12:23 AM
Moon Transit: 5:16 AM
Moonset: 10:22 AM
Moon Phase: Waning Gibbous
Moon Illumination: 61.0%

Best Times for Fishing or Hunting

Major Periods

4:46 AM - 7:16 AM
5:07 PM - 7:37 PM

Minor Periods

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

Action Rating: 3 out of 5

Tuesday, June 17, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 54.1°F
Average Humidity: 86%
Chance of Rain: 0%
Wind: 10.1 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 13.12 μg/m3
PM10: 14.32 μg/m3
Carbon Monoxide: 345.71 μg/m3
Nitrogen Dioxide: 2.93 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 89.15 μg/m3

Astronomical

Sunrise: 5:02 AM
Sun Transit: 1:02 PM
Sunset: 9:03 PM
Daylight: 16 hrs mins
Moonrise: 12:41 AM
Moon Transit: 6:03 AM
Moonset: 11:39 AM
Moon Phase: Last Quarter
Moon Illumination: 49.7%

Best Times for Fishing or Hunting

Major Periods

5:33 AM - 8:03 AM
5:53 PM - 8:23 PM

Minor Periods

11:09 AM - 12:39 AM
12:11 AM - 1:41 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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