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

-20°F
Partly Cloudy
Partly Cloudy
-47.1°F
-19.6°F
52%
NW 17.9 mph
20.8 mph
-53.3°F
-27.9°F
0 in
0%
1 mi
1027 mbar
0

Five Day Weather Forecast

Partly Cloudy
Thu
H: -4°F
L: -20°F
Partly Cloudy
Fri
H: -7°F
L: -24°F
Partly Cloudy
Sat
H: 4°F
L: -13°F
Sunny
Sun
H: 12°F
L: -5°F
Overcast
Mon
H: 11°F
L: -12°F

Air Quality

AQI: 1 - Good
PM2.5: 0.88 μg/m3
PM10: 0.88 μg/m3
Carbon Monoxide: 150.68 μg/m3
Nitrogen Dioxide: 0.88 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 64 μg/m3

Astronomical

Sunrise: 7:39 AM
Sun Transit: 12:13 AM
Sunset: 4:47 PM
Daylight: 9 hrs 8 mins
Moonrise: 9:26 AM
Moon Transit: 12:00 AM
Moonset: 9:23 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:22 AM - 4:52 AM

Minor Periods

8:53 PM - 10:23 PM
8:56 AM - 10:26 AM

Action Rating: 2 out of 5

Extreme Cold Warning issued January 22 at 4:10PM CST until January 24 at 12:00PM CST by NWS Duluth MN

Effective: Thu January 22, 2026, 4:10 PM
Expires: Fri January 23, 2026, 4:15 AM

* WHAT...Dangerously cold wind chills of 45 to near 60 degrees below zero. * WHERE...Crow Wing, Aitkin, Pine, Koochiching, Cass, Itasca, Carlton, St. Louis, Cook and Lake Counties. This includes the Tribal Lands of the Fond du Lac Band, the Grand Portage Reservation, the Mille Lacs Band, East Lake, Hinckley, Lena Lake and, Big Sandy Lake areas and the Bois Forte Band, Deer Creek, Lake Vermilion and, Nett Lake areas. Other locations including Voyageurs National Park. The entire Boundary Waters is also included. * WHEN...Until noon CST Saturday. * IMPACTS...The dangerously cold wind chills as low as 55 degrees below zero could cause frostbite on exposed skin in as little as 5 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.


Special Weather Statement issued January 22 at 3:48PM CST by NWS Duluth MN

Effective: Thu January 22, 2026, 3:48 PM
Expires: Thu January 22, 2026, 7:00 PM

Scattered strong snow showers developed this afternoon and will persist into this evening. Expect changing visibility and road conditions in snow showers. Visibility will drop to 1/2 to 1/4 mile or less in the heavy snow showers over the span of minutes. Snow will quickly accumulate on roads during the heavy snow showers making driving conditions slippery. Be prepared for snow or ice covered roads and changing visibility. Slow down and allow extra time when traveling.


Thursday, January 22, 2026

Weather Forecast

Partly Cloudy
-4.2°F
-19.5°F
-7.8°F
60%
0 in
0%
6%
19 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.52 μg/m3
PM10: 1.63 μg/m3
Carbon Monoxide: 158.2 μg/m3
Nitrogen Dioxide: 1.02 μg/m3
Sulphur Dioxide: 0.83 μg/m3
Ozone: 71.52 μg/m3

Astronomical

Sunrise: 7:39 AM
Sun Transit: 12:13 AM
Sunset: 4:47 PM
Daylight: 9 hrs 8 mins
Moonrise: 9:26 AM
Moon Transit: 12:00 AM
Moonset: 9:23 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:22 AM - 4:52 AM

Minor Periods

8:53 PM - 10:23 PM
8:56 AM - 10:26 AM

Action Rating: 2 out of 5

Friday, January 23, 2026

Weather Forecast

Partly Cloudy
-6.5°F
-23.6°F
-15.5°F
65%
0 in
0%
0%
17.4 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 0.91 μg/m3
PM10: 0.96 μg/m3
Carbon Monoxide: 151.76 μg/m3
Nitrogen Dioxide: 0.94 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 65.04 μg/m3

Astronomical

Sunrise: 7:38 AM
Sun Transit: 12:13 AM
Sunset: 4:49 PM
Daylight: 9 hrs 10 mins
Moonrise: 9:41 AM
Moon Transit: 8:54 AM
Moonset: 10:40 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

8:24 AM - 10:54 AM
8:24 AM - 10:54 AM

Minor Periods

10:10 PM - 11:40 PM
9:11 AM - 10:41 AM

Action Rating: 2 out of 5

Saturday, January 24, 2026

Weather Forecast

Partly Cloudy
4.1°F
-12.6°F
-4.5°F
76%
0 in
0%
3%
8.7 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.5 μg/m3
PM10: 1.57 μg/m3
Carbon Monoxide: 156.28 μg/m3
Nitrogen Dioxide: 1.74 μg/m3
Sulphur Dioxide: 0.91 μg/m3
Ozone: 62.96 μg/m3

Astronomical

Sunrise: 7:37 AM
Sun Transit: 12:13 AM
Sunset: 4:50 PM
Daylight: 9 hrs 13 mins
Moonrise: 9:58 AM
Moon Transit: 4:48 PM
Moonset: 11:57 PM
Moon Phase: First Quarter
Moon Illumination: 34.7%

Best Times for Fishing or Hunting

Major Periods

3:52 AM - 6:22 AM
4:18 PM - 6:48 PM

Minor Periods

12:00 AM - 12:00 AM
9:28 AM - 10:58 AM

Action Rating: 2 out of 5

Sunday, January 25, 2026

Weather Forecast

Sunny
11.5°F
-4.5°F
3.3°F
69%
0 in
0%
0%
9.6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.31 μg/m3
PM10: 2.41 μg/m3
Carbon Monoxide: 167.81 μg/m3
Nitrogen Dioxide: 2.8 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 64.76 μg/m3

Astronomical

Sunrise: 7:36 AM
Sun Transit: 12:13 AM
Sunset: 4:52 PM
Daylight: 9 hrs 15 mins
Moonrise: 10:17 AM
Moon Transit: 5:38 PM
Moonset: 12:57 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

4:40 AM - 7:10 AM
5:08 PM - 7:38 PM

Minor Periods

9:47 AM - 11:17 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Monday, January 26, 2026

Weather Forecast

Overcast
11.3°F
-11.9°F
1.1°F
82%
0 in
0%
18%
19.5 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 2.44 μg/m3
PM10: 2.49 μg/m3
Carbon Monoxide: 173.12 μg/m3
Nitrogen Dioxide: 2.8 μg/m3
Sulphur Dioxide: 1.32 μg/m3
Ozone: 67.62 μg/m3

Astronomical

Sunrise: 7:35 AM
Sun Transit: 12:13 AM
Sunset: 4:53 PM
Daylight: 9 hrs 18 mins
Moonrise: 10:40 AM
Moon Transit: 6:31 PM
Moonset: 1:18 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

5:31 AM - 8:01 AM
6:01 PM - 8:31 PM

Minor Periods

10:10 AM - 11:40 AM
12:48 AM - 2:18 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.

Webcams Near Grand Marais, MN

Sponsored Content