Water Temperature of Lake Superior in Grand Marais, MN
Current Water Temperature
Measurement Time: Thursday, February 26, 2026, 6:20 AM CST
Temperature Locations
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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

Five Day Weather Forecast

Fri
H: 37°F
L: 13°F

Sat
H: 14°F
L: -9°F

Sun
H: 16°F
L: -2°F

Mon
H: 27°F
L: 7°F

Tue
H: 32°F
L: 17°F
Air Quality
Nitrogen Dioxide: 0.88 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 86 μg/m3
Astronomical
Sun Transit: 12:13 AM
Sunset: 5:43 PM
Daylight: 10 hrs 57 mins
Moon Transit: 9:29 PM
Moonset: 5:02 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.3%
Best Times for Fishing or Hunting
Major Periods
8:27 AM - 10:57 AM8:59 PM - 11:29 PM
Minor Periods
12:34 AM - 2:04 PM4:32 AM - 6:02 AM
Action Rating: 2 out of 5
High Wind Warning issued February 27 at 1:45AM CST until February 28 at 12:00AM CST by NWS Duluth MN
Effective: Fri February 27, 2026, 1:45 AM
Expires: Fri February 27, 2026, 1:45 PM
* WHAT...Northwest winds 20 to 30 mph with gusts up to 60 mph expected. * WHERE...Southern Cook County. This includes the Tribal Lands of the Grand Portage Reservation. * WHEN...From noon today to midnight CST tonight. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.
Watch for falling debris and tree limbs. Use caution if you must drive.
Wind Advisory issued February 27 at 1:45AM CST until February 28 at 12:00AM CST by NWS Duluth MN
Effective: Fri February 27, 2026, 1:45 AM
Expires: Fri February 27, 2026, 1:45 PM
* WHAT...West to northwest winds 15 to 25 mph with gusts up to 50 mph expected. * WHERE...In Minnesota, Carlton, South and Central St. Louis, North Cook and Lake Counties. In Wisconsin, Bayfield and Douglas Counties. This includes the Tribal Lands of the Bois Forte Band, Lake Vermilion area, the Fond du Lac Band and the Red Cliff Band. Other locations including the Apostle Islands National Lakeshore. This also includes the Boundary Waters eastern and central area. * WHEN...From noon today to midnight CST tonight. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.
Wind Advisory issued February 27 at 12:10PM CST until February 28 at 12:00AM CST by NWS Duluth MN
Effective: Fri February 27, 2026, 12:10 PM
Expires: Sat February 28, 2026, 12:00 AM
* WHAT...West winds 15 to 25 mph with gusts up to 50 mph. * WHERE...In Minnesota, Carlton, South and Central St. Louis, North Cook and Lake Counties. In Wisconsin, Bayfield and Douglas Counties. This includes the Tribal Lands of the Bois Forte Band, Lake Vermilion area, the Fond du Lac Band and the Red Cliff Band. Other locations including the Apostle Islands National Lakeshore. This also includes the Boundary Waters eastern and central area. * WHEN...Until midnight CST tonight. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.
Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution.
High Wind Warning issued February 27 at 12:10PM CST until February 28 at 12:00AM CST by NWS Duluth MN
Effective: Fri February 27, 2026, 12:10 PM
Expires: Sat February 28, 2026, 12:00 AM
* WHAT...West winds 20 to 25 mph with gusts up to 65 mph expected. * WHERE...Southern Cook County. This includes the Tribal Lands of the Grand Portage Reservation. * WHEN...Until midnight CST tonight. * IMPACTS...Damaging winds will blow down trees and power lines. Power outages are expected. Travel will be difficult, especially for high profile vehicles.
Watch for falling debris and tree limbs. Use caution if you must drive.
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.55 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 80.84 μg/m3
Astronomical
Sun Transit: 12:13 AM
Sunset: 5:43 PM
Daylight: 10 hrs 57 mins
Moon Transit: 9:29 PM
Moonset: 5:02 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.3%
Best Times for Fishing or Hunting
Major Periods
8:27 AM - 10:57 AM8:59 PM - 11:29 PM
Minor Periods
12:34 AM - 2:04 PM4:32 AM - 6:02 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 0.87 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 84.64 μg/m3
Astronomical
Sun Transit: 12:13 AM
Sunset: 5:45 PM
Daylight: 11 hrs 1 mins
Moon Transit: 10:24 PM
Moonset: 5:37 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.1%
Best Times for Fishing or Hunting
Major Periods
9:24 AM - 11:54 AM12:00 AM - 12:00 AM
Minor Periods
1:57 PM - 3:27 PM5:07 AM - 6:37 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 0.99 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 88.6 μg/m3
Astronomical
Sun Transit: 12:13 AM
Sunset: 5:46 PM
Daylight: 11 hrs 4 mins
Moon Transit: 11:15 PM
Moonset: 6:04 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 95.8%
Best Times for Fishing or Hunting
Major Periods
10:17 AM - 12:47 AM12:00 AM - 12:00 AM
Minor Periods
3:19 PM - 4:49 PM5:34 AM - 7:04 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.41 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 86.12 μg/m3
Astronomical
Sun Transit: 12:13 AM
Sunset: 5:48 PM
Daylight: 11 hrs 8 mins
Moon Transit: 12:00 AM
Moonset: 6:24 AM
Moon Phase: Full
Moon Illumination: 99.1%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM11:06 AM - 1:36 PM
Minor Periods
4:37 PM - 6:07 PM5:54 AM - 7:24 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 3.02 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 83.92 μg/m3
Astronomical
Sun Transit: 12:13 AM
Sunset: 5:49 PM
Daylight: 11 hrs 11 mins
Moon Transit: 12:02 AM
Moonset: 6:41 AM
Moon Phase: Full
Moon Illumination: 100.0%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM11:52 AM - 2:22 PM
Minor Periods
5:53 PM - 7:23 PM6:11 AM - 7:41 AM
Action Rating: 5 out of 5
