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

Current Water Temperature

Current temperature data is
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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

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 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 mi)
Sturgeon River, Pelkie, MI (98 mi)
Falls River, L'Anse, MI (102.8 mi)

Weather for Grand Portage, Minnesota

Current Weather

49.5°F
Mist
Conditions: Mist
Humidity: 100%
Feels Like: 46°F
Wind: N 8.5 mph
Wind Gusts: 17.4 mph
Pressure: 29.47 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 0 mi
UV Index: 0.1

Weather Forecast

Light drizzle
Wed
H: 51°F
L: 45°F
Cloudy
Thu
H: 46°F
L: 30°F
Sunny
Fri
H: 41°F
L: 28°F

Air Quality

AQI: 1 - Good
PM2.5: 0.1 μg/m3
PM10: 0.1 μg/m3
Carbon Monoxide: 135 μg/m3
Nitrogen Dioxide: 1.3 μg/m3
Sulphur Dioxide: 0.5 μg/m3
Ozone: 60 μg/m3

Astronomical

Sunrise: 6:49 AM
Sun Transit: 11:42 AM
Sunset: 4:36 PM
Daylight: 9 hrs 47 mins
Moonrise: 1:36 AM
Moon Transit: 8:11 AM
Moonset: 2:32 PM
Moon Phase: Last Quarter
Moon Illumination: 18.5%

Best Times for Fishing or Hunting

Major Periods

7:41 AM - 10:11 AM
8:06 PM - 10:36 PM

Minor Periods

2:02 PM - 3:32 PM
1:06 AM - 2:36 AM

Action Rating: 2 out of 5

Gale Warning issued November 4 at 1:44PM CST until November 5 at 6:00PM CST by NWS Duluth MN

Effective: Wed November 4, 2026, 7:44 PM
Expires: Thu November 5, 2026, 7:45 AM

* WHAT...For the Small Craft Advisory, northeast winds 15 to 25 kt with gusts up to 30 kt and waves 1 to 4 ft. For the Gale Warning, north winds 15 to 25 kt with gusts up to 40 kt and waves 2 to 5 ft expected. * WHERE...Grand Portage to Grand Marais MN. * WHEN...For the Small Craft Advisory, until 3 AM CST Thursday. For the Gale Warning, from 3 AM to 6 PM CST Thursday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.


Small Craft Advisory issued November 4 at 1:44PM CST until November 5 at 3:00AM CST by NWS Duluth MN

Effective: Wed November 4, 2026, 7:44 PM
Expires: Thu November 5, 2026, 7:45 AM

* WHAT...For the Small Craft Advisory, northeast winds 15 to 25 kt with gusts up to 30 kt and waves 1 to 4 ft. For the Gale Warning, north winds 15 to 25 kt with gusts up to 40 kt and waves 2 to 5 ft expected. * WHERE...Grand Portage to Grand Marais MN. * WHEN...For the Small Craft Advisory, until 3 AM CST Thursday. For the Gale Warning, from 3 AM to 6 PM CST Thursday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.
Wednesday, November 4, 2026

Weather Forecast

Conditions: Light drizzle
Average Temperature: 49°F
Average Humidity: 95%
Chance of Rain: 94%
Wind: 15.2 mph
UV Index: 0.4

Astronomical

Sunrise: 6:49 AM
Sun Transit: 11:42 AM
Sunset: 4:36 PM
Daylight: 9 hrs 47 mins
Moonrise: 1:36 AM
Moon Transit: 8:11 AM
Moonset: 2:32 PM
Moon Phase: Last Quarter
Moon Illumination: 18.5%

Best Times for Fishing or Hunting

Major Periods

7:41 AM - 10:11 AM
8:06 PM - 10:36 PM

Minor Periods

2:02 PM - 3:32 PM
1:06 AM - 2:36 AM

Action Rating: 2 out of 5

Thursday, November 5, 2026

Weather Forecast

Conditions: Cloudy
Average Temperature: 36.8°F
Average Humidity: 78%
Chance of Rain: 75%
Wind: 20.4 mph
UV Index: 1.1

Astronomical

Sunrise: 6:50 AM
Sun Transit: 11:42 AM
Sunset: 4:34 PM
Daylight: 9 hrs 44 mins
Moonrise: 2:50 AM
Moon Transit: 8:55 AM
Moonset: 2:47 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.6%

Best Times for Fishing or Hunting

Major Periods

8:25 AM - 10:55 AM
8:49 PM - 11:19 PM

Minor Periods

2:17 PM - 3:47 PM
2:20 AM - 3:50 AM

Action Rating: 2 out of 5

Friday, November 6, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 33.3°F
Average Humidity: 71%
Chance of Rain: 10%
Wind: 10.1 mph
UV Index: 1.6

Astronomical

Sunrise: 6:52 AM
Sun Transit: 11:42 AM
Sunset: 4:33 PM
Daylight: 9 hrs 41 mins
Moonrise: 4:03 AM
Moon Transit: 9:39 AM
Moonset: 3:03 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:09 AM - 11:39 AM

Minor Periods

2:33 PM - 4:03 PM
3:33 AM - 5:03 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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