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

Current Water Temperature

32.5°F

Measurement Time: Sunday, January 18, 2026, 10:15 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

-7.1°F
Overcast
Overcast
-32.4°F
-8°F
58%
NNW 22.1 mph
32.8 mph
-31.8°F
-15.8°F
0 in
100%
14 mi
1015 mbar
0

Five Day Weather Forecast

Light freezing rain
Mon
H: -4°F
L: -18°F
Partly Cloudy
Tue
H: 4°F
L: -9°F
Overcast
Wed
H: 12°F
L: 6°F
Light freezing rain
Thu
H: 20°F
L: -16°F
Light freezing rain
Fri
H: 10°F
L: -29°F

Air Quality

AQI: 1 - Good
PM2.5: 1.45 μg/m3
PM10: 1.55 μg/m3
Carbon Monoxide: 151.85 μg/m3
Nitrogen Dioxide: 1.15 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 70 μg/m3

Astronomical

Sunrise: 7:40 AM
Sun Transit: 12:09 AM
Sunset: 4:39 PM
Daylight: 8 hrs 59 mins
Moonrise: 8:30 AM
Moon Transit: 12:58 AM
Moonset: 5:36 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

12:06 AM - 2:36 AM
12:28 AM - 2:58 PM

Minor Periods

5:06 PM - 6:36 PM
8:00 AM - 9:30 AM

Action Rating: 5 out of 5

Wind Advisory issued January 18 at 1:22PM CST until January 19 at 6:00AM CST by NWS Duluth MN

Effective: Sun January 18, 2026, 1:22 PM
Expires: Mon January 19, 2026, 1:30 AM

* WHAT...For the Cold Weather Advisory, very cold wind chills as low as 39 below zero expected. For the Wind Advisory, northwest winds 15 to 20 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...For the Cold Weather Advisory, from 9 PM this evening to noon CST Monday. For the Wind Advisory, from 9 PM this evening to 6 AM CST Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Cold Weather Advisory issued January 18 at 1:22PM CST until January 19 at 12:00PM CST by NWS Duluth MN

Effective: Sun January 18, 2026, 1:22 PM
Expires: Mon January 19, 2026, 1:30 AM

* WHAT...For the Cold Weather Advisory, very cold wind chills as low as 39 below zero expected. For the Wind Advisory, northwest winds 15 to 20 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...For the Cold Weather Advisory, from 9 PM this evening to noon CST Monday. For the Wind Advisory, from 9 PM this evening to 6 AM CST Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Cold Weather Advisory issued January 18 at 1:22PM CST until January 19 at 12:00PM CST by NWS Duluth MN

Effective: Sun January 18, 2026, 1:22 PM
Expires: Mon January 19, 2026, 1:30 AM

* WHAT...Very cold wind chills as low as 39 below zero expected. * WHERE...Northern Cook and Lake County. This also includes the Boundary Waters eastern and central area. * WHEN...From 9 PM this evening to noon CST Monday. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Wind Advisory issued January 18 at 9:19PM CST until January 19 at 6:00AM CST by NWS Duluth MN

Effective: Sun January 18, 2026, 9:19 PM
Expires: Mon January 19, 2026, 9:30 AM

* WHAT...For the Cold Weather Advisory, very cold wind chills as low as 39 below zero. For the Wind Advisory, northwest 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...For the Cold Weather Advisory, until noon CST Monday. For the Wind Advisory, until 6 AM CST Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Cold Weather Advisory issued January 18 at 9:19PM CST until January 19 at 12:00PM CST by NWS Duluth MN

Effective: Sun January 18, 2026, 9:19 PM
Expires: Mon January 19, 2026, 9:30 AM

* WHAT...Very cold wind chills as low as 40 below zero expected. * WHERE...Northern Cook and Lake County. This also includes the Boundary Waters eastern and central area. * WHEN...Until noon CST Monday. * IMPACTS...The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Cold Weather Advisory issued January 18 at 9:19PM CST until January 19 at 12:00PM CST by NWS Duluth MN

Effective: Sun January 18, 2026, 9:19 PM
Expires: Mon January 19, 2026, 9:30 AM

* WHAT...For the Cold Weather Advisory, very cold wind chills as low as 39 below zero. For the Wind Advisory, northwest 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...For the Cold Weather Advisory, until noon CST Monday. For the Wind Advisory, until 6 AM CST Monday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. The dangerously cold wind chills as low as 40 below zero could cause frostbite on exposed skin in as little as 10 minutes.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.


Monday, January 19, 2026

Weather Forecast

Light freezing rain
-3.6°F
-18°F
-8.6°F
68%
0.01 in
77%
16%
24.2 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 1.66 μg/m3
PM10: 1.85 μg/m3
Carbon Monoxide: 154.01 μg/m3
Nitrogen Dioxide: 1.44 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 68.6 μg/m3

Astronomical

Sunrise: 7:40 AM
Sun Transit: 12:09 AM
Sunset: 4:39 PM
Daylight: 8 hrs 59 mins
Moonrise: 8:30 AM
Moon Transit: 12:58 AM
Moonset: 5:36 PM
Moon Phase: New
Moon Illumination: 0.4%

Best Times for Fishing or Hunting

Major Periods

12:06 AM - 2:36 AM
12:28 AM - 2:58 PM

Minor Periods

5:06 PM - 6:36 PM
8:00 AM - 9:30 AM

Action Rating: 5 out of 5

Tuesday, January 20, 2026

Weather Forecast

Partly Cloudy
4.1°F
-9.2°F
-2.7°F
65%
0 in
0%
0%
12.3 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2 μg/m3
PM10: 2.15 μg/m3
Carbon Monoxide: 151.65 μg/m3
Nitrogen Dioxide: 1.72 μg/m3
Sulphur Dioxide: 1.16 μg/m3
Ozone: 74.36 μg/m3

Astronomical

Sunrise: 7:39 AM
Sun Transit: 12:09 AM
Sunset: 4:41 PM
Daylight: 9 hrs 2 mins
Moonrise: 8:51 AM
Moon Transit: 1:45 PM
Moonset: 6:51 PM
Moon Phase: New
Moon Illumination: 3.1%

Best Times for Fishing or Hunting

Major Periods

12:54 AM - 3:24 AM
1:15 PM - 3:45 PM

Minor Periods

6:21 PM - 7:51 PM
8:21 AM - 9:51 AM

Action Rating: 3 out of 5

Wednesday, January 21, 2026

Weather Forecast

Overcast
12°F
5.5°F
8.4°F
80%
0 in
0%
0%
12.3 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 3.54 μg/m3
PM10: 3.79 μg/m3
Carbon Monoxide: 155.54 μg/m3
Nitrogen Dioxide: 3.01 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 70.96 μg/m3

Astronomical

Sunrise: 7:38 AM
Sun Transit: 12:10 AM
Sunset: 4:42 PM
Daylight: 9 hrs 4 mins
Moonrise: 9:08 AM
Moon Transit: 2:30 PM
Moonset: 8:06 PM
Moon Phase: Waxing Crescent
Moon Illumination: 8.1%

Best Times for Fishing or Hunting

Major Periods

1:40 AM - 4:10 AM
2:00 PM - 4:30 PM

Minor Periods

7:36 PM - 9:06 PM
8:38 AM - 10:08 AM

Action Rating: 3 out of 5

Thursday, January 22, 2026

Weather Forecast

Light freezing rain
20.4°F
-16°F
-2.7°F
85%
0.01 in
70%
15%
17 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.7 μg/m3
PM10: 1.81 μg/m3
Carbon Monoxide: 160.12 μg/m3
Nitrogen Dioxide: 1.51 μg/m3
Sulphur Dioxide: 1.14 μg/m3
Ozone: 69.64 μg/m3

Astronomical

Sunrise: 7:37 AM
Sun Transit: 12:10 AM
Sunset: 4:44 PM
Daylight: 9 hrs 6 mins
Moonrise: 9:24 AM
Moon Transit: 12:00 AM
Moonset: 9:21 PM
Moon Phase: Waxing Crescent
Moon Illumination: 15.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
2:25 AM - 4:55 AM

Minor Periods

8:51 PM - 10:21 PM
8:54 AM - 10:24 AM

Action Rating: 2 out of 5

Friday, January 23, 2026

Weather Forecast

Light freezing rain
10.2°F
-29°F
-6.9°F
86%
0.02 in
89%
12%
16.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.13 μg/m3
PM10: 1.2 μg/m3
Carbon Monoxide: 158.62 μg/m3
Nitrogen Dioxide: 1.15 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 62.85 μg/m3

Astronomical

Sunrise: 7:36 AM
Sun Transit: 12:10 AM
Sunset: 4:45 PM
Daylight: 9 hrs 9 mins
Moonrise: 9:39 AM
Moon Transit: 8:54 AM
Moonset: 10:37 PM
Moon Phase: Waxing Crescent
Moon Illumination: 24.4%

Best Times for Fishing or Hunting

Major Periods

8:24 AM - 10:54 AM
8:24 AM - 10:54 AM

Minor Periods

10:07 PM - 11:37 PM
9:09 AM - 10:39 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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