Water Temperature of Lake Superior in Grand Marais, MN

Current Water Temperature

41.0°F

Measurement Time: Monday, June 1, 2026, 6:15 AM CDT

Temperature Locations

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Lake Superior

Station Name: Grand Marais
Data Source: USGS

Elevation Above Sea Level: 607 feet

Nearest Address:
2nd Street
Grand Marais, MN 55604
Cook County

GPS Coordinates: 47.7517, -90.3283

Nearby Water Temperatures

Grand Marais Harbor, Grand Marais, MN (0.6 mi)
Poplar River, Lutsen, MN (19.4 mi)
Grand Portage River, Grand Portage, MN (33.3 mi)
Lake Superior, Lake Superior, MI (38.1 mi)
Baptism River, Illgen City, MN (49.7 mi)
Washington Creek, Windigo, MI (56.1 mi)
Kawishiwi River, Ely, MN (57.2 mi)
Dunka River, Babbitt, MN (71.4 mi)
Dunka River, Babbitt, MN (71.7 mi)
Partrige River, Babbitt, MN (74.9 mi)
Lake Superior, Two Harbors, MN (80.5 mi)
Chequamegon Bay, Ashland, WI (81.7 mi)
Saint Louis River, Hoyt Lakes, MN (81.9 mi)
Lake Superior, Calumet, MI (86.9 mi)
Presque Isle River, Tula, MI (87.2 mi)

Weather for Grand Marais, Minnesota

Current Weather

57.1°F
Sunny
Sunny
43.7°F
57.1°F
53%
ENE 11.2 mph
23.5 mph
55.1°F
40.6°F
0 in
0%
6 mi
1023 mbar
0.5

Five Day Weather Forecast

Sunny
Mon
H: 62°F
L: 50°F
Sunny
Tue
H: 59°F
L: 46°F
Sunny
Wed
H: 58°F
L: 48°F
Patchy rain nearby
Thu
H: 58°F
L: 49°F
Patchy rain nearby
Fri
H: 56°F
L: 48°F

Air Quality

AQI: 1 - Good
PM2.5: 5.9 μg/m3
PM10: 6.5 μg/m3
Carbon Monoxide: 110 μg/m3
Nitrogen Dioxide: 0.6 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 82 μg/m3

Astronomical

Sunrise: 5:07 AM
Sun Transit: 1:00 PM
Sunset: 8:52 PM
Daylight: 15 hrs 45 mins
Moonrise: 10:48 PM
Moon Transit: 1:40 AM
Moonset: 5:24 AM
Moon Phase: Full
Moon Illumination: 96.8%

Best Times for Fishing or Hunting

Major Periods

1:10 AM - 3:40 AM
1:33 PM - 4:03 PM

Minor Periods

10:18 PM - 11:48 PM
4:54 AM - 6:24 AM

Action Rating: 4 out of 5

Special Weather Statement issued June 1 at 12:01PM CDT by NWS Duluth MN

Effective: Mon June 1, 2026, 12:01 PM
Expires: Mon June 1, 2026, 8:15 PM

Dry conditions with relative humidity values between 15 and 25 percent are being observed this afternoon and forecast into early evening for portions of northeast Minnesota including the Iron Range, Arrowhead and areas north towards the International Border. East to southeast winds of 5 to 10 mph and gusts of 10-15 mph are forecast. Together, these conditions may cause fires to spread quickly. Check burning restrictions and fire danger before burning. For more information on burning restrictions for Minnesota, see www.dnr.state.mn.us/forestry/fire/firerating_restrictions.html.


Monday, June 1, 2026

Weather Forecast

Sunny
61.5°F
49.8°F
55.7°F
47%
0 in
0%
0%
13.2 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 2.92 μg/m3
PM10: 3.2 μg/m3
Carbon Monoxide: 111.25 μg/m3
Nitrogen Dioxide: 0.69 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 77.67 μg/m3

Astronomical

Sunrise: 5:07 AM
Sun Transit: 1:00 PM
Sunset: 8:52 PM
Daylight: 15 hrs 45 mins
Moonrise: 10:48 PM
Moon Transit: 1:40 AM
Moonset: 5:24 AM
Moon Phase: Full
Moon Illumination: 96.8%

Best Times for Fishing or Hunting

Major Periods

1:10 AM - 3:40 AM
1:33 PM - 4:03 PM

Minor Periods

10:18 PM - 11:48 PM
4:54 AM - 6:24 AM

Action Rating: 4 out of 5

Tuesday, June 2, 2026

Weather Forecast

Sunny
58.6°F
46°F
54.1°F
57%
0 in
1%
0%
8.7 mph
7.6


Air Quality

AQI: 1 - Good
PM2.5: 4.63 μg/m3
PM10: 5.4 μg/m3
Carbon Monoxide: 110.63 μg/m3
Nitrogen Dioxide: 1.12 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 79.88 μg/m3

Astronomical

Sunrise: 5:06 AM
Sun Transit: 1:00 PM
Sunset: 8:53 PM
Daylight: 15 hrs 47 mins
Moonrise: 11:29 PM
Moon Transit: 2:32 AM
Moonset: 6:18 AM
Moon Phase: Full
Moon Illumination: 91.7%

Best Times for Fishing or Hunting

Major Periods

2:02 AM - 4:32 AM
2:24 PM - 4:54 PM

Minor Periods

12:00 AM - 12:00 AM
5:48 AM - 7:18 AM

Action Rating: 3 out of 5

Wednesday, June 3, 2026

Weather Forecast

Sunny
58°F
48.2°F
53.8°F
74%
0 in
4%
0%
8.7 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 2.71 μg/m3
PM10: 3.42 μg/m3
Carbon Monoxide: 117.96 μg/m3
Nitrogen Dioxide: 1.15 μg/m3
Sulphur Dioxide: 0.29 μg/m3
Ozone: 87.58 μg/m3

Astronomical

Sunrise: 5:06 AM
Sun Transit: 1:00 PM
Sunset: 8:54 PM
Daylight: 15 hrs 48 mins
Moonrise: 12:29 AM
Moon Transit: 3:22 AM
Moonset: 7:20 AM
Moon Phase: Waning Gibbous
Moon Illumination: 84.4%

Best Times for Fishing or Hunting

Major Periods

2:52 AM - 5:22 AM
3:14 PM - 5:44 PM

Minor Periods

6:50 AM - 8:20 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Thursday, June 4, 2026

Weather Forecast

Patchy rain nearby
58°F
48.9°F
53.1°F
91%
0.13 in
90%
0%
9.4 mph
4.4


Air Quality

AQI: 1 - Good
PM2.5: 4.34 μg/m3
PM10: 4.62 μg/m3
Carbon Monoxide: 133.76 μg/m3
Nitrogen Dioxide: 1.47 μg/m3
Sulphur Dioxide: 0.36 μg/m3
Ozone: 92.29 μg/m3

Astronomical

Sunrise: 5:05 AM
Sun Transit: 1:00 PM
Sunset: 8:55 PM
Daylight: 15 hrs 50 mins
Moonrise: 12:02 AM
Moon Transit: 4:11 AM
Moonset: 8:29 AM
Moon Phase: Waning Gibbous
Moon Illumination: 75.3%

Best Times for Fishing or Hunting

Major Periods

3:41 AM - 6:11 AM
4:02 PM - 6:32 PM

Minor Periods

7:59 AM - 9:29 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, June 5, 2026

Weather Forecast

Patchy rain nearby
56°F
48.4°F
52.7°F
84%
0.03 in
73%
0%
12.8 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.91 μg/m3
PM10: 1.99 μg/m3
Carbon Monoxide: 137.88 μg/m3
Nitrogen Dioxide: 1.01 μg/m3
Sulphur Dioxide: 0.16 μg/m3
Ozone: 53.13 μg/m3

Astronomical

Sunrise: 5:05 AM
Sun Transit: 1:00 PM
Sunset: 8:56 PM
Daylight: 15 hrs 51 mins
Moonrise: 12:28 AM
Moon Transit: 4:58 AM
Moonset: 9:38 AM
Moon Phase: Waning Gibbous
Moon Illumination: 65.0%

Best Times for Fishing or Hunting

Major Periods

4:28 AM - 6:58 AM
4:48 PM - 7:18 PM

Minor Periods

9:08 AM - 10:38 AM
12:00 AM - 12:00 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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