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

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)

Marine Weather for the Grand Portage River in Grand Portage, MN

Marine Weather

Coastal & Marine Conditions
Open-Meteo Marine
0.1ft 0.0 m
Calm / Flat Smooth waters with minimal wave motion.
Wave Period 3.2s
Wave Direction 75° ENE
Swell Waves
0.1 ft
2.9s • 66° ENE
Wind Waves / Chop
0.0 ft
-- • 341° NNW
High and low tide forecasts are not applicable for freshwater lake stations.

5-Day Marine Wave Forecast

Today
Nov 15
1.4 ft
3.3s • SSW
Mon
Nov 16
3.4 ft
4.3s • SW
Tue
Nov 17
3.1 ft
4.3s • SW
Wed
Nov 18
2.6 ft
4.2s • SSW
Thu
Nov 19
2.0 ft
4.1s • SSW

Weather for Grand Portage, Minnesota

Current Weather

31.3°F
Clear
Conditions: Clear
Humidity: 61%
Feels Like: 23.2°F
Wind: NW 6.5 mph
Wind Gusts: 9.4 mph
Pressure: 30.29 in
Precipitation: 0 in
Cloud Cover: 2%
Visibility: 18.5 mi
UV Index: 0

Five-Day Weather Forecast

Overcast
Sun
H: 42°F
L: 28°F
Overcast
Mon
H: 45°F
L: 38°F
Overcast
Tue
H: 49°F
L: 41°F
Overcast
Wed
H: 48°F
L: 44°F
Slight Rain
Thu
H: 52°F
L: 42°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
2.6 μg/m³
Good
PM10
2.9 μg/m³
Good
Ozone (O3)
53 μg/m³
Photochemical
NO2
3.9 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
111 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 16m daylight
Sunrise 7:05 AM
Solar Noon 11:43 AM
Sunset 4:21 PM
Moon
Waxing Crescent • 31%
Moonrise 12:30 PM
Transit 4:56 PM
Moonset 9:32 PM

Best Times for Fishing or Hunting

Major Periods

4:03 AM - 6:33 AM
4:26 PM - 6:56 PM

Minor Periods

12:00 PM - 1:30 PM
9:02 PM - 10:32 PM
Action Rating:
Good Action 3/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 35.4°F
Average Humidity: 69%
Chance of Rain: 0%
Wind: 9.6 mph
UV Index: 2.1

Air Quality

EPA Index 1 • Good
PM2.5
5.9 μg/m³
Good
PM10
6.4 μg/m³
Good
Ozone (O3)
59.8 μg/m³
Photochemical
NO2
2.9 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
121.3 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 16m daylight
Sunrise 7:05 AM
Solar Noon 11:43 AM
Sunset 4:21 PM
Moon
Waxing Crescent • 31%
Moonrise 12:30 PM
Transit 4:56 PM
Moonset 9:32 PM

Best Times for Fishing or Hunting

Major Periods

4:03 AM - 6:33 AM
4:26 PM - 6:56 PM

Minor Periods

12:00 PM - 1:30 PM
9:02 PM - 10:32 PM
Action Rating:
Good Action 3/5
Monday, November 16, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 41.9°F
Average Humidity: 80%
Chance of Rain: 3%
Wind: 16.9 mph
UV Index: 1.8

Air Quality

EPA Index 1 • Good
PM2.5
8.1 μg/m³
Good
PM10
8.2 μg/m³
Good
Ozone (O3)
51.7 μg/m³
Photochemical
NO2
4.3 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
143.5 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 14m daylight
Sunrise 7:07 AM
Solar Noon 11:43 AM
Sunset 4:20 PM
Moon
First Quarter • 42%
Moonrise 12:51 PM
Transit 5:40 PM
Moonset 10:42 PM

Best Times for Fishing or Hunting

Major Periods

4:48 AM - 7:18 AM
5:10 PM - 7:40 PM

Minor Periods

12:21 PM - 1:51 PM
10:12 PM - 11:42 PM
Action Rating:
Good Action 3/5
Tuesday, November 17, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 44.2°F
Average Humidity: 86%
Chance of Rain: 0%
Wind: 11.3 mph
UV Index: 2

Air Quality

EPA Index 1 • Good
PM2.5
6.4 μg/m³
Good
PM10
6.5 μg/m³
Good
Ozone (O3)
56.5 μg/m³
Photochemical
NO2
3.7 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
140.6 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 11m daylight
Sunrise 7:08 AM
Solar Noon 11:43 AM
Sunset 4:19 PM
Moon
First Quarter • 54%
Moonrise 1:08 PM
Transit 6:23 PM
Moonset 11:51 PM

Best Times for Fishing or Hunting

Major Periods

5:32 AM - 8:02 AM
5:53 PM - 8:23 PM

Minor Periods

12:38 PM - 2:08 PM
11:21 PM - 12:51 AM
Action Rating:
Fair Action 2/5
Wednesday, November 18, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 45.7°F
Average Humidity: 82%
Chance of Rain: 8%
Wind: 10 mph
UV Index: 1.5

Air Quality

EPA Index 1 • Good
PM2.5
4.2 μg/m³
Good
PM10
4.3 μg/m³
Good
Ozone (O3)
63.8 μg/m³
Photochemical
NO2
2.1 μg/m³
Nitrogen Dioxide
SO2
0.6 μg/m³
Sulfur Dioxide
CO
140.6 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 8m daylight
Sunrise 7:10 AM
Solar Noon 11:43 AM
Sunset 4:18 PM
Moon
First Quarter • 65%
Moonrise 1:24 PM
Transit 7:06 PM
Moonset 1:49 AM

Best Times for Fishing or Hunting

Major Periods

6:15 AM - 8:45 AM
6:36 PM - 9:06 PM

Minor Periods

1:19 AM - 2:49 AM
12:54 PM - 2:24 PM
Action Rating:
Fair Action 2/5
Thursday, November 19, 2026

Weather Forecast

Conditions: Slight Rain
Average Temperature: 47.1°F
Average Humidity: 92%
Chance of Rain: 25%
Wind: 11 mph
UV Index: 1.4

Air Quality

EPA Index 1 • Good
PM2.5
5.7 μg/m³
Good
PM10
6 μg/m³
Good
Ozone (O3)
66.3 μg/m³
Photochemical
NO2
1.5 μg/m³
Nitrogen Dioxide
SO2
0.5 μg/m³
Sulfur Dioxide
CO
163.3 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 6m daylight
Sunrise 7:11 AM
Solar Noon 11:44 AM
Sunset 4:17 PM
Moon
Waxing Gibbous • 75%
Moonrise 1:39 PM
Transit 7:49 PM
Moonset 1:02 AM

Best Times for Fishing or Hunting

Major Periods

6:57 AM - 9:27 AM
7:19 PM - 9:49 PM

Minor Periods

12:32 AM - 2:02 AM
1:09 PM - 2:39 PM
Action Rating:
Good Action 3/5
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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