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

Current Water Temperature

32.0°F

Measurement Time: Saturday, August 29, 2026, 12:10 PM CDT

Temperature Locations

View Nearby Locations     View All Minnesota Locations     View Locations Near Me

Local Points of Interest

Grand Portage Bay; Lake Superior

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

67°F
Mostly Cloudy
Mostly Cloudy
73%
S 5 mph
58°F

Weather Forecast

Mostly Cloudy
This Afternoon
69°F - Mostly Cloudy
Patchy Fog then Mostly Cloudy
Tonight
57°F - Patchy Fog then Mostly Cloudy
Mostly Cloudy
Sunday
68°F - Mostly Cloudy
Mostly Cloudy then Chance Showers And Thunderstorms
Sunday Night
57°F - Mostly Cloudy then Chance Showers And Thunderstorms
Showers And Thunderstorms Likely
Monday
75°F - Showers And Thunderstorms Likely
Slight Chance Showers And Thunderstorms then Mostly Cloudy
Monday Night
58°F - Slight Chance Showers And Thunderstorms then Mostly Cloudy
Mostly Sunny
Tuesday
79°F - Mostly Sunny
Mostly Cloudy
Tuesday Night
59°F - Mostly Cloudy
Partly Sunny
Wednesday
76°F - Partly Sunny
Partly Cloudy
Wednesday Night
56°F - Partly Cloudy
Mostly Sunny
Thursday
72°F - Mostly Sunny
Slight Chance Rain Showers
Thursday Night
55°F - Slight Chance Rain Showers
Slight Chance Rain Showers then Mostly Sunny
Friday
73°F - Slight Chance Rain Showers then Mostly Sunny
Partly Cloudy then Slight Chance Showers And Thunderstorms
Friday Night
57°F - Partly Cloudy then Slight Chance Showers And Thunderstorms

Astronomical

Sunrise: 6:13 AM
Sun Transit: 1:00 PM
Sunset: 7:45 PM
Daylight: 13 hrs 32 mins
Moonrise: 8:10 PM
Moon Transit: 1:45 AM
Moonset: 7:51 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

1:15 AM - 3:45 AM
12:00 AM - 12:00 AM

Minor Periods

7:40 PM - 9:10 PM
7:21 AM - 8:51 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:13 AM
Sun Transit: 1:00 PM
Sunset: 7:45 PM
Daylight: 13 hrs 32 mins
Moonrise: 8:10 PM
Moon Transit: 1:45 AM
Moonset: 7:51 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

1:15 AM - 3:45 AM
12:00 AM - 12:00 AM

Minor Periods

7:40 PM - 9:10 PM
7:21 AM - 8:51 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:13 AM
Sun Transit: 1:00 PM
Sunset: 7:45 PM
Daylight: 13 hrs 32 mins
Moonrise: 8:10 PM
Moon Transit: 1:45 AM
Moonset: 7:51 AM
Moon Phase: Full
Moon Illumination: 95.0%

Best Times for Fishing or Hunting

Major Periods

1:15 AM - 3:45 AM
12:00 AM - 12:00 AM

Minor Periods

7:40 PM - 9:10 PM
7:21 AM - 8:51 AM

Action Rating: 4 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:14 AM
Sun Transit: 1:00 PM
Sunset: 7:43 PM
Daylight: 13 hrs 29 mins
Moonrise: 8:26 PM
Moon Transit: 12:00 AM
Moonset: 9:05 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

7:56 PM - 9:26 PM
8:35 AM - 10:05 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:14 AM
Sun Transit: 1:00 PM
Sunset: 7:43 PM
Daylight: 13 hrs 29 mins
Moonrise: 8:26 PM
Moon Transit: 12:00 AM
Moonset: 9:05 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

7:56 PM - 9:26 PM
8:35 AM - 10:05 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:16 AM
Sun Transit: 1:00 PM
Sunset: 7:41 PM
Daylight: 13 hrs 25 mins
Moonrise: 8:45 PM
Moon Transit: 3:15 AM
Moonset: 10:22 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

2:45 AM - 5:15 AM
3:11 PM - 5:41 PM

Minor Periods

8:15 PM - 9:45 PM
9:52 AM - 11:22 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:16 AM
Sun Transit: 1:00 PM
Sunset: 7:41 PM
Daylight: 13 hrs 25 mins
Moonrise: 8:45 PM
Moon Transit: 3:15 AM
Moonset: 10:22 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.9%

Best Times for Fishing or Hunting

Major Periods

2:45 AM - 5:15 AM
3:11 PM - 5:41 PM

Minor Periods

8:15 PM - 9:45 PM
9:52 AM - 11:22 AM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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 22 mins
Moonrise: 9:07 PM
Moon Transit: 4:03 AM
Moonset: 11:41 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:33 AM - 6:03 AM
4:01 PM - 6:31 PM

Minor Periods

8:37 PM - 10:07 PM
11:11 AM - 12:41 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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 22 mins
Moonrise: 9:07 PM
Moon Transit: 4:03 AM
Moonset: 11:41 AM
Moon Phase: Waning Gibbous
Moon Illumination: 71.2%

Best Times for Fishing or Hunting

Major Periods

3:33 AM - 6:03 AM
4:01 PM - 6:31 PM

Minor Periods

8:37 PM - 10:07 PM
11:11 AM - 12:41 AM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:19 AM
Sun Transit: 12:58 AM
Sunset: 7:37 PM
Daylight: 13 hrs 19 mins
Moonrise: 9:35 PM
Moon Transit: 4:55 AM
Moonset: 1:03 PM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:25 AM - 6:55 AM
4:56 PM - 7:26 PM

Minor Periods

9:05 PM - 10:35 PM
12:33 AM - 2:03 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:19 AM
Sun Transit: 12:58 AM
Sunset: 7:37 PM
Daylight: 13 hrs 19 mins
Moonrise: 9:35 PM
Moon Transit: 4:55 AM
Moonset: 1:03 PM
Moon Phase: Waning Gibbous
Moon Illumination: 60.5%

Best Times for Fishing or Hunting

Major Periods

4:25 AM - 6:55 AM
4:56 PM - 7:26 PM

Minor Periods

9:05 PM - 10:35 PM
12:33 AM - 2:03 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:20 AM
Sun Transit: 12:58 AM
Sunset: 7:35 PM
Daylight: 13 hrs 15 mins
Moonrise: 10:16 PM
Moon Transit: 5:52 AM
Moonset: 2:24 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:22 AM - 7:52 AM
5:54 PM - 8:24 PM

Minor Periods

9:46 PM - 11:16 PM
1:54 PM - 3:24 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:20 AM
Sun Transit: 12:58 AM
Sunset: 7:35 PM
Daylight: 13 hrs 15 mins
Moonrise: 10:16 PM
Moon Transit: 5:52 AM
Moonset: 2:24 PM
Moon Phase: Last Quarter
Moon Illumination: 49.2%

Best Times for Fishing or Hunting

Major Periods

5:22 AM - 7:52 AM
5:54 PM - 8:24 PM

Minor Periods

9:46 PM - 11:16 PM
1:54 PM - 3:24 PM

Action Rating: 2 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:21 AM
Sun Transit: 12:57 AM
Sunset: 7:33 PM
Daylight: 13 hrs 12 mins
Moonrise: 11:09 PM
Moon Transit: 6:52 AM
Moonset: 3:38 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:22 AM - 8:52 AM
6:56 PM - 9:26 PM

Minor Periods

12:00 AM - 12:00 AM
3:08 PM - 4:38 PM

Action Rating: 3 out of 5

Wednesday, December 31, 1969

Weather Forecast

°F
°F
°F
%
in
%
%
mph


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: 6:21 AM
Sun Transit: 12:57 AM
Sunset: 7:33 PM
Daylight: 13 hrs 12 mins
Moonrise: 11:09 PM
Moon Transit: 6:52 AM
Moonset: 3:38 PM
Moon Phase: Last Quarter
Moon Illumination: 38.0%

Best Times for Fishing or Hunting

Major Periods

6:22 AM - 8:52 AM
6:56 PM - 9:26 PM

Minor Periods

12:00 AM - 12:00 AM
3:08 PM - 4:38 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.

Webcams Near Grand Portage, MN