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

View Nearby Locations     View All Minnesota Locations     View Locations Near Me

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

30.9°F
Clear
Clear
24.5°F
31.3°F
75%
NE 6.5 mph
11.8 mph
24.4°F
25.5°F
0 in
0%
3 mi
1009 mbar
0

Five Day Weather Forecast

Sunny
Thu
H: 33°F
L: 23°F
Partly Cloudy
Fri
H: 39°F
L: 30°F
Mist
Sat
H: 34°F
L: 29°F
Partly Cloudy
Sun
H: 31°F
L: 25°F
Light snow
Mon
H: 34°F
L: 13°F

Air Quality

AQI: 1 - Good
PM2.5: 3.58 μg/m3
PM10: 3.98 μg/m3
Carbon Monoxide: 177.68 μg/m3
Nitrogen Dioxide: 1.88 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 85 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:00 AM
Sunset: 7:13 PM
Daylight: 12 hrs 7 mins
Moonrise: 7:10 AM
Moon Transit: 12:31 AM
Moonset: 8:26 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 AM
12:01 AM - 2:31 AM

Minor Periods

7:56 PM - 9:26 PM
6:40 AM - 8:10 AM

Action Rating: 4 out of 5

special weather statement in effect

Service Notice – February 2026: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2026, changes are expected to include... 1) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard is tentatively set for Spring 2026 deployment. Data changes will appear in CAP following this deployment and 2) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – février 2026: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2026, il y aura des changements incluant... 1) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique devrait être déployée provisoirement au printemps 2026. Des changements de données apparaîtront dans le PAC à la suite de ce déploiement et 2) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Thu March 19, 2026, 6:57 PM
Expires: Fri March 20, 2026, 4:01 AM

Light freezing rain begins this evening. What: A thin layer of ice build-up or accretion is expected. When: Tonight. Additional information: Walkways and roadways may be slippery. ### Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.


Thursday, March 19, 2026

Weather Forecast

Sunny
33.3°F
23.4°F
29.6°F
76%
0 in
0%
4%
8.3 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 6.3 μg/m3
PM10: 6.84 μg/m3
Carbon Monoxide: 196.76 μg/m3
Nitrogen Dioxide: 2.12 μg/m3
Sulphur Dioxide: 0.93 μg/m3
Ozone: 92.4 μg/m3

Astronomical

Sunrise: 7:06 AM
Sun Transit: 12:00 AM
Sunset: 7:13 PM
Daylight: 12 hrs 7 mins
Moonrise: 7:10 AM
Moon Transit: 12:31 AM
Moonset: 8:26 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 AM
12:01 AM - 2:31 AM

Minor Periods

7:56 PM - 9:26 PM
6:40 AM - 8:10 AM

Action Rating: 4 out of 5

Friday, March 20, 2026

Weather Forecast

Partly Cloudy
38.7°F
29.5°F
34.2°F
87%
0 in
0%
3%
5.8 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 3.36 μg/m3
PM10: 3.69 μg/m3
Carbon Monoxide: 172.4 μg/m3
Nitrogen Dioxide: 1.84 μg/m3
Sulphur Dioxide: 0.81 μg/m3
Ozone: 91.12 μg/m3

Astronomical

Sunrise: 7:04 AM
Sun Transit: 9:27 AM
Sunset: 7:14 PM
Daylight: 12 hrs 10 mins
Moonrise: 7:27 AM
Moon Transit: 2:28 PM
Moonset: 9:49 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

1:30 AM - 4:00 AM
1:58 PM - 4:28 PM

Minor Periods

9:19 PM - 10:49 PM
6:57 AM - 8:27 AM

Action Rating: 4 out of 5

Saturday, March 21, 2026

Weather Forecast

Mist
33.8°F
28.9°F
31.6°F
96%
0 in
0%
4%
12.5 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.83 μg/m3
PM10: 2.23 μg/m3
Carbon Monoxide: 164.72 μg/m3
Nitrogen Dioxide: 1.17 μg/m3
Sulphur Dioxide: 0.81 μg/m3
Ozone: 96.2 μg/m3

Astronomical

Sunrise: 7:02 AM
Sun Transit: 12:00 AM
Sunset: 7:16 PM
Daylight: 12 hrs 14 mins
Moonrise: 7:48 AM
Moon Transit: 3:21 PM
Moonset: 11:14 PM
Moon Phase: Waxing Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

2:21 AM - 4:51 AM
2:51 PM - 5:21 PM

Minor Periods

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

Action Rating: 3 out of 5

Sunday, March 22, 2026

Weather Forecast

Partly Cloudy
31.1°F
25.2°F
28.5°F
78%
0 in
0%
0%
13.2 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 0.79 μg/m3
PM10: 0.81 μg/m3
Carbon Monoxide: 180.48 μg/m3
Nitrogen Dioxide: 1.06 μg/m3
Sulphur Dioxide: 0.69 μg/m3
Ozone: 93.4 μg/m3

Astronomical

Sunrise: 7:00 AM
Sun Transit: 12:00 AM
Sunset: 7:17 PM
Daylight: 12 hrs 17 mins
Moonrise: 8:15 AM
Moon Transit: 4:18 PM
Moonset: 12:14 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

3:16 AM - 5:46 AM
3:48 PM - 6:18 PM

Minor Periods

7:45 AM - 9:15 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Monday, March 23, 2026

Weather Forecast

Light snow
34.1°F
13.1°F
25.3°F
89%
0.02 in
66%
40%
6.7 mph
0.9


Air Quality

AQI: 1 - Good
PM2.5: 0.78 μg/m3
PM10: 0.79 μg/m3
Carbon Monoxide: 187.56 μg/m3
Nitrogen Dioxide: 0.91 μg/m3
Sulphur Dioxide: 0.68 μg/m3
Ozone: 90.85 μg/m3

Astronomical

Sunrise: 6:58 AM
Sun Transit: 1:07 PM
Sunset: 7:18 PM
Daylight: 12 hrs 20 mins
Moonrise: 8:50 AM
Moon Transit: 5:18 PM
Moonset: 12:40 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

4:15 AM - 6:45 AM
4:48 PM - 7:18 PM

Minor Periods

8:20 AM - 9:50 AM
12:10 AM - 1:40 AM

Action Rating: 4 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.

Webcams Near Grand Marais, MN

Sponsored Content