Water Temperature of the Grand Portage River in Grand Portage, MN

Current Water Temperature

Current temperature data is
not available at this time.

Temperature Locations

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Local Points of Interest

Grand Portage Bay; Lake Superior

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Grand Portage River

Station Name: GRAND PORTAGE RIVER AT GRAND PORTAGE MN
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 623 feet / 190 meters

Nearest Address:
1 Upper Rd
Grand Portage, MN 55605
Cook County

GPS Coordinates: 47.9634982, -89.6834233

Nearby Water Temperatures

Washington Creek, Windigo, MI (25.0 mi)
Lake Superior, Grand Marais, MN (33.3 mi)
Grand Marais Harbor, Grand Marais, MN (33.9 mi)
Lake Superior, Lake Superior, MI (43.7 mi)
Poplar River, Lutsen, MN (52.6 mi)
Lake Superior, Calumet, MI (69.3 mi)
Pilgrim River, Houghton, MI (80.5 mi)
Baptism River, Illgen City, MN (82.8 mi)
Kawishiwi River, Ely, MN (85.7 mi)
Lake Superior, Isle Royale, MI (90.4 mi)
Keweenaw Bay, Jacobsville, MI (91.2 mi)
West Branch Ontonagon River, Bergland, MI (95.2 mi)
Presque Isle River, Tula, MI (98.0 mi)
Sturgeon River, Pelkie, MI (98.0 mi)
Falls River, L'Anse, MI (102.8 mi)

Weather for Grand Portage, Minnesota

Current Weather

48.9°F
Clear
Conditions: Clear
Humidity: 93%
Feels Like: 46.5°F
Wind: N 5.8 mph
Wind Gusts: 10.2 mph
Pressure: 30.15 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Thu
H: 60°F
L: 48°F
Partly Cloudy
Fri
H: 60°F
L: 37°F
Partly Cloudy
Sat
H: 68°F
L: 50°F
Patchy rain nearby
Sun
H: 75°F
L: 61°F
Sunny
Mon
H: 72°F
L: 62°F

Air Quality

PM2.5: 6.11 μg/m3
PM10: 6.48 μg/m3
Carbon Monoxide: 260.85 μg/m3
Nitrogen Dioxide: 0.74 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 60 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 1:00 PM
Sunset: 7:47 PM
Daylight: 13 hrs 35 mins
Moonrise: 12:11 AM
Moon Transit: 4:54 PM
Moonset: 9:28 PM
Moon Phase: Waxing Crescent
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

4:05 AM - 6:35 AM
4:24 PM - 6:54 PM

Minor Periods

8:58 PM - 10:28 PM
11:41 AM - 1:11 PM

Action Rating: 3 out of 5

Thursday, August 28, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 55.5°F
Average Humidity: 75%
Chance of Rain: 0%
Wind: 8.3 mph
UV Index: 1.5

Air Quality

AQI: 1 - Good
PM2.5: 7 μg/m3
PM10: 7.28 μg/m3
Carbon Monoxide: 261.66 μg/m3
Nitrogen Dioxide: 1.4 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 64.48 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 1:00 PM
Sunset: 7:47 PM
Daylight: 13 hrs 35 mins
Moonrise: 12:11 AM
Moon Transit: 4:54 PM
Moonset: 9:28 PM
Moon Phase: Waxing Crescent
Moon Illumination: 21.1%

Best Times for Fishing or Hunting

Major Periods

4:05 AM - 6:35 AM
4:24 PM - 6:54 PM

Minor Periods

8:58 PM - 10:28 PM
11:41 AM - 1:11 PM

Action Rating: 3 out of 5

Friday, August 29, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 50.7°F
Average Humidity: 86%
Chance of Rain: 0%
Wind: 6.9 mph
UV Index: 1.4

Air Quality

AQI: 1 - Good
PM2.5: 4.39 μg/m3
PM10: 4.81 μg/m3
Carbon Monoxide: 254.71 μg/m3
Nitrogen Dioxide: 0.87 μg/m3
Sulphur Dioxide: 0.65 μg/m3
Ozone: 69 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 1:00 PM
Sunset: 7:45 PM
Daylight: 13 hrs 31 mins
Moonrise: 1:20 PM
Moon Transit: 5:39 PM
Moonset: 9:51 PM
Moon Phase: Waxing Crescent
Moon Illumination: 31.0%

Best Times for Fishing or Hunting

Major Periods

4:49 AM - 7:19 AM
5:09 PM - 7:39 PM

Minor Periods

9:21 PM - 10:51 PM
12:50 AM - 2:20 PM

Action Rating: 3 out of 5

Saturday, August 30, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 60.3°F
Average Humidity: 88%
Chance of Rain: 0%
Wind: 8.5 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 7.01 μg/m3
PM10: 7.36 μg/m3
Carbon Monoxide: 263.29 μg/m3
Nitrogen Dioxide: 1.81 μg/m3
Sulphur Dioxide: 0.87 μg/m3
Ozone: 66.8 μg/m3

Astronomical

Sunrise: 6:15 AM
Sun Transit: 1:00 PM
Sunset: 7:43 PM
Daylight: 13 hrs 28 mins
Moonrise: 2:30 PM
Moon Transit: 6:27 PM
Moonset: 10:20 PM
Moon Phase: First Quarter
Moon Illumination: 41.9%

Best Times for Fishing or Hunting

Major Periods

5:35 AM - 8:05 AM
5:57 PM - 8:27 PM

Minor Periods

9:50 PM - 11:20 PM
2:00 PM - 3:30 PM

Action Rating: 2 out of 5

Sunday, August 31, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 66.9°F
Average Humidity: 74%
Chance of Rain: 84%
Wind: 6.3 mph
UV Index: 4

Air Quality

AQI: 1 - Good
PM2.5: 11.44 μg/m3
PM10: 12.17 μg/m3
Carbon Monoxide: 325.88 μg/m3
Nitrogen Dioxide: 5.72 μg/m3
Sulphur Dioxide: 0.91 μg/m3
Ozone: 52.69 μg/m3

Astronomical

Sunrise: 6:16 AM
Sun Transit: 12:58 AM
Sunset: 7:41 PM
Daylight: 13 hrs 25 mins
Moonrise: 3:35 PM
Moon Transit: 7:18 PM
Moonset: 10:59 PM
Moon Phase: First Quarter
Moon Illumination: 53.2%

Best Times for Fishing or Hunting

Major Periods

6:25 AM - 8:55 AM
6:48 PM - 9:18 PM

Minor Periods

10:29 PM - 11:59 PM
3:05 PM - 4:35 PM

Action Rating: 3 out of 5

Monday, September 1, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 65.3°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 8.5 mph
UV Index: 5

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 6:17 AM
Sun Transit: 12:58 AM
Sunset: 7:39 PM
Daylight: 13 hrs 21 mins
Moonrise: 4:34 PM
Moon Transit: 8:11 PM
Moonset: 11:50 PM
Moon Phase: First Quarter
Moon Illumination: 64.3%

Best Times for Fishing or Hunting

Major Periods

7:17 AM - 9:47 AM
7:41 PM - 10:11 PM

Minor Periods

12:00 AM - 12:00 AM
4:04 PM - 5:34 PM

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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