Water Temperature of Grand Marais Harbor in Grand Marais, MN

Current Water Temperature

52.9°F

Measurement Time: Tuesday, December 3, 2024, 6:18 AM CST

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

35.1°F
Sunny
Conditions: Sunny
Humidity: 72%
Feels Like: 28°F
Wind: W 8.9 mph
Wind Gusts: 12 mph
Pressure: 29.44 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0.5

Five Day Weather Forecast

Overcast
Fri
H: 39°F
L: 14°F
Sunny
Sat
H: 21°F
L: 11°F
Blizzard
Sun
H: 32°F
L: 22°F
Moderate or heavy snow showers
Mon
H: 34°F
L: 24°F
Light snow showers
Tue
H: 35°F
L: 20°F

Air Quality

AQI: 1 - Good
PM2.5: 4.7 μg/m3
PM10: 6.04 μg/m3
Carbon Monoxide: 251.73 μg/m3
Nitrogen Dioxide: 0.34 μg/m3
Sulphur Dioxide: 2.35 μg/m3
Ozone: 101 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 12:00 AM
Sunset: 7:16 PM
Daylight: 12 hrs 14 mins
Moonrise: 2:35 AM
Moon Transit: 6:17 AM
Moonset: 9:58 AM
Moon Phase: Last Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

5:47 AM - 8:17 AM
6:11 PM - 8:41 PM

Minor Periods

9:28 AM - 10:58 AM
2:05 AM - 3:35 AM

Action Rating: 2 out of 5

Winter Storm Watch issued March 21 at 2:28AM CDT until March 24 at 7:00AM CDT by NWS Duluth MN

Effective: Fri March 21, 2025, 2:28 AM
Expires: Fri March 21, 2025, 5:00 PM

* WHAT...Heavy snow possible. Total snow accumulations of 7 inches or greater possible. * WHERE... Cook and Lake Counties. This includes the Tribal Lands of the Grand Portage Reservation. This also includes the Boundary Waters eastern and central area. * WHEN...From late Saturday night through Monday morning. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute.

Monitor the latest forecasts for updates on this situation.


Winter Storm Watch issued March 21 at 2:28AM CDT until March 24 at 7:00AM CDT by NWS Duluth MN

Effective: Fri March 21, 2025, 2:28 AM
Expires: Fri March 21, 2025, 5:00 PM

* WHAT...Heavy snow possible. Total snow accumulations of 7 inches or greater possible. * WHERE... Cook and Lake Counties. This includes the Tribal Lands of the Grand Portage Reservation. This also includes the Boundary Waters eastern and central area. * WHEN...From late Saturday night through Monday morning. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the Monday morning commute.

Monitor the latest forecasts for updates on this situation.
Friday, March 21, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 29.8°F
Average Humidity: 62%
Chance of Rain: 0%
Wind: 16.1 mph
UV Index: 0.5

Air Quality

AQI: 1 - Good
PM2.5: 10.85 μg/m3
PM10: 12.43 μg/m3
Carbon Monoxide: 266.17 μg/m3
Nitrogen Dioxide: 1.88 μg/m3
Sulphur Dioxide: 2.07 μg/m3
Ozone: 95.12 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 12:00 AM
Sunset: 7:16 PM
Daylight: 12 hrs 14 mins
Moonrise: 2:35 AM
Moon Transit: 6:17 AM
Moonset: 9:58 AM
Moon Phase: Last Quarter
Moon Illumination: 43.0%

Best Times for Fishing or Hunting

Major Periods

5:47 AM - 8:17 AM
6:11 PM - 8:41 PM

Minor Periods

9:28 AM - 10:58 AM
2:05 AM - 3:35 AM

Action Rating: 2 out of 5

Saturday, March 22, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 16.9°F
Average Humidity: 56%
Chance of Rain: 0%
Wind: 12.8 mph
UV Index: 0.7

Air Quality

AQI: 1 - Good
PM2.5: 2.01 μg/m3
PM10: 2.22 μg/m3
Carbon Monoxide: 245.89 μg/m3
Nitrogen Dioxide: 0.25 μg/m3
Sulphur Dioxide: 0.17 μg/m3
Ozone: 79.4 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 1:08 PM
Sunset: 7:17 PM
Daylight: 12 hrs 18 mins
Moonrise: 3:33 AM
Moon Transit: 7:11 AM
Moonset: 10:51 AM
Moon Phase: Last Quarter
Moon Illumination: 32.1%

Best Times for Fishing or Hunting

Major Periods

6:41 AM - 9:11 AM
7:06 PM - 9:36 PM

Minor Periods

10:21 AM - 11:51 AM
3:03 AM - 4:33 AM

Action Rating: 4 out of 5

Sunday, March 23, 2025

Weather Forecast

Conditions: Blizzard
Average Temperature: 27.7°F
Average Humidity: 92%
Chance of Rain: 82%
Wind: 22.6 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 4.2 μg/m3
PM10: 4.57 μg/m3
Carbon Monoxide: 264.96 μg/m3
Nitrogen Dioxide: 3.18 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 81.4 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 1:07 PM
Sunset: 7:19 PM
Daylight: 12 hrs 21 mins
Moonrise: 4:22 AM
Moon Transit: 8:06 AM
Moonset: 11:56 AM
Moon Phase: Last Quarter
Moon Illumination: 22.0%

Best Times for Fishing or Hunting

Major Periods

7:36 AM - 10:06 AM
8:01 PM - 10:31 PM

Minor Periods

11:26 AM - 12:56 AM
3:52 AM - 5:22 AM

Action Rating: 2 out of 5

Monday, March 24, 2025

Weather Forecast

Conditions: Moderate or heavy snow showers
Average Temperature: 28.5°F
Average Humidity: 86%
Chance of Rain: 85%
Wind: 19.2 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 0.55 μg/m3
PM10: 0.58 μg/m3
Carbon Monoxide: 246.7 μg/m3
Nitrogen Dioxide: 2.19 μg/m3
Sulphur Dioxide: 0.57 μg/m3
Ozone: 85 μg/m3

Astronomical

Sunrise: 6:56 AM
Sun Transit: 1:07 PM
Sunset: 7:20 PM
Daylight: 12 hrs 25 mins
Moonrise: 4:59 AM
Moon Transit: 9:01 AM
Moonset: 1:12 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.4%

Best Times for Fishing or Hunting

Major Periods

8:31 AM - 11:01 AM
8:55 PM - 11:25 PM

Minor Periods

12:42 AM - 2:12 PM
4:29 AM - 5:59 AM

Action Rating: 2 out of 5

Tuesday, March 25, 2025

Weather Forecast

Conditions: Light snow showers
Average Temperature: 27.4°F
Average Humidity: 83%
Chance of Rain: 88%
Wind: 6.5 mph
UV Index: 1

Air Quality

AQI: 1 - Good
PM2.5: 0.96 μg/m3
PM10: 1.06 μg/m3
Carbon Monoxide: 260.25 μg/m3
Nitrogen Dioxide: 0.92 μg/m3
Sulphur Dioxide: 0.19 μg/m3
Ozone: 85.08 μg/m3

Astronomical

Sunrise: 6:54 AM
Sun Transit: 1:07 PM
Sunset: 7:22 PM
Daylight: 12 hrs 28 mins
Moonrise: 5:28 AM
Moon Transit: 9:55 AM
Moonset: 2:33 PM
Moon Phase: Waning Crescent
Moon Illumination: 6.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:25 AM - 11:55 AM

Minor Periods

2:03 PM - 3:33 PM
4:58 AM - 6:28 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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