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

Current Water Temperature

32.4°F

Measurement Time: Tuesday, January 13, 2026, 11:15 PM CST

Temperature Locations

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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

0.1°F
Clear
Clear
-22.2°F
-3.1°F
54%
NNW 20.8 mph
31.9 mph
-27.6°F
-13.6°F
0 in
25%
14 mi
1018 mbar
0

Five Day Weather Forecast

Cloudy
Wed
H: 9°F
L: -7°F
Moderate or heavy snow showers
Thu
H: 17°F
L: 4°F
Light freezing rain
Fri
H: 26°F
L: 12°F
Light freezing rain
Sat
H: 2°F
L: -11°F
Overcast
Sun
H: 4°F
L: -15°F

Air Quality

AQI: 1 - Good
PM2.5: 1.25 μg/m3
PM10: 1.35 μg/m3
Carbon Monoxide: 145.85 μg/m3
Nitrogen Dioxide: 1.35 μg/m3
Sulphur Dioxide: 1.35 μg/m3
Ozone: 73 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 12:07 AM
Sunset: 4:32 PM
Daylight: 8 hrs 48 mins
Moonrise: 4:48 AM
Moon Transit: 8:41 AM
Moonset: 12:31 AM
Moon Phase: Waning Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

8:11 AM - 10:41 AM
8:39 PM - 11:09 PM

Minor Periods

12:01 AM - 1:31 PM
4:18 AM - 5:48 AM

Action Rating: 3 out of 5

Wind Advisory issued January 13 at 12:25PM CST until January 14 at 6:00AM CST by NWS Duluth MN

Effective: Tue January 13, 2026, 12:25 PM
Expires: Wed January 14, 2026, 12:30 AM

* WHAT...North winds 15 to 25 mph with gusts up to 45 mph expected. * WHERE...Southern Cook and Southern Lake Counties. This includes the Tribal Lands of the Grand Portage Reservation. * WHEN...From 6 PM this evening to 6 AM CST Wednesday. * 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 January 13 at 8:49PM CST until January 14 at 6:00AM CST by NWS Duluth MN

Effective: Tue January 13, 2026, 8:49 PM
Expires: Wed January 14, 2026, 6:00 AM

* WHAT...North winds 15 to 20 mph with gusts up to 45 mph. * WHERE...Southern Cook and Southern Lake Counties. This includes the Tribal Lands of the Grand Portage Reservation. * WHEN...Until 6 AM CST Wednesday. * 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.
Wednesday, January 14, 2026

Weather Forecast

Cloudy
9.1°F
-6.5°F
1.4°F
71%
0 in
0%
0%
22.8 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.09 μg/m3
PM10: 1.15 μg/m3
Carbon Monoxide: 154.37 μg/m3
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 1.29 μg/m3
Ozone: 74.96 μg/m3

Astronomical

Sunrise: 7:44 AM
Sun Transit: 12:07 AM
Sunset: 4:32 PM
Daylight: 8 hrs 48 mins
Moonrise: 4:48 AM
Moon Transit: 8:41 AM
Moonset: 12:31 AM
Moon Phase: Waning Crescent
Moon Illumination: 8.5%

Best Times for Fishing or Hunting

Major Periods

8:11 AM - 10:41 AM
8:39 PM - 11:09 PM

Minor Periods

12:01 AM - 1:31 PM
4:18 AM - 5:48 AM

Action Rating: 3 out of 5

Thursday, January 15, 2026

Weather Forecast

Moderate or heavy snow showers
16.7°F
3.6°F
10.2°F
79%
0.13 in
60%
17%
14.8 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.46 μg/m3
PM10: 1.57 μg/m3
Carbon Monoxide: 145.09 μg/m3
Nitrogen Dioxide: 1.89 μg/m3
Sulphur Dioxide: 1.39 μg/m3
Ozone: 74.12 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 12:08 AM
Sunset: 4:34 PM
Daylight: 8 hrs 50 mins
Moonrise: 5:50 AM
Moon Transit: 9:32 AM
Moonset: 1:13 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:02 AM - 11:32 AM

Minor Periods

12:43 AM - 2:13 PM
5:20 AM - 6:50 AM

Action Rating: 2 out of 5

Friday, January 16, 2026

Weather Forecast

Light freezing rain
26.1°F
12.1°F
19.3°F
78%
0.01 in
71%
10%
14.1 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 1.68 μg/m3
PM10: 1.76 μg/m3
Carbon Monoxide: 156.09 μg/m3
Nitrogen Dioxide: 3.07 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 70.8 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 12:08 AM
Sunset: 4:35 PM
Daylight: 8 hrs 53 mins
Moonrise: 6:45 AM
Moon Transit: 10:24 AM
Moonset: 2:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:54 AM - 12:24 AM

Minor Periods

1:37 PM - 3:07 PM
6:15 AM - 7:45 AM

Action Rating: 3 out of 5

Saturday, January 17, 2026

Weather Forecast

Light freezing rain
1.8°F
-11.3°F
-0.4°F
86%
0 in
86%
9%
15 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.09 μg/m3
PM10: 1.11 μg/m3
Carbon Monoxide: 141.48 μg/m3
Nitrogen Dioxide: 1.33 μg/m3
Sulphur Dioxide: 1.32 μg/m3
Ozone: 67.88 μg/m3

Astronomical

Sunrise: 7:42 AM
Sun Transit: 12:08 AM
Sunset: 4:37 PM
Daylight: 8 hrs 55 mins
Moonrise: 7:28 AM
Moon Transit: 11:17 AM
Moonset: 3:11 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:47 AM - 1:17 PM

Minor Periods

2:41 PM - 4:11 PM
6:58 AM - 8:28 AM

Action Rating: 4 out of 5

Sunday, January 18, 2026

Weather Forecast

Overcast
4.4°F
-15.2°F
-8.1°F
90%
0 in
0%
12%
12.3 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 1.42 μg/m3
PM10: 1.47 μg/m3
Carbon Monoxide: 150.91 μg/m3
Nitrogen Dioxide: 1.81 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 66.85 μg/m3

Astronomical

Sunrise: 7:41 AM
Sun Transit: 12:09 AM
Sunset: 4:38 PM
Daylight: 8 hrs 57 mins
Moonrise: 8:03 AM
Moon Transit: 12:08 AM
Moonset: 4:22 PM
Moon Phase: New
Moon Illumination: 2.5%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:38 AM - 2:08 PM

Minor Periods

3:52 PM - 5:22 PM
7:33 AM - 9:03 AM

Action Rating: 4 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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