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

Current Water Temperature

32.4°F

Measurement Time: Sunday, January 25, 2026, 2:15 AM 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

-17.7°F
Sunny
Sunny
-33.7°F
-14°F
68%
NNW 6.5 mph
13 mph
-34.8°F
-24.3°F
0 in
25%
19 mi
1028 mbar
0

Five Day Weather Forecast

Partly Cloudy
Sun
H: -3°F
L: -14°F
Partly Cloudy
Mon
H: 7°F
L: -13°F
Partly Cloudy
Tue
H: 9°F
L: -4°F
Overcast
Wed
H: 5°F
L: -5°F
Light freezing rain
Thu
H: 3°F
L: -8°F

Air Quality

AQI: 1 - Good
PM2.5: 5.55 μg/m3
PM10: 6.35 μg/m3
Carbon Monoxide: 180.85 μg/m3
Nitrogen Dioxide: 1.65 μg/m3
Sulphur Dioxide: 1.75 μg/m3
Ozone: 66 μg/m3

Astronomical

Sunrise: 7:34 AM
Sun Transit: 12:11 AM
Sunset: 4:48 PM
Daylight: 9 hrs 14 mins
Moonrise: 10:13 AM
Moon Transit: 5:35 PM
Moonset: 12:55 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

4:42 AM - 7:12 AM
5:05 PM - 7:35 PM

Minor Periods

9:43 AM - 11:13 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

yellow warning - cold - in effect

Service Notice – November 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is tentatively set for deployment November 26, 2025. Data changes will appear in CAP following this deployment, 2) the alert name ‘extreme cold warning’ will change to ‘cold warning’, 3) two Public zone names will change in Saskatchewan, 4) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard continues, there will be changes coming to CAP and 5) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – novembre 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est provisoirement prévue pour un déploiement le 26 novembre 2025. Des changements aux données apparaîtront dans le PAC suite à ce déploiement, 2) le nom de l’alerte ‘avertissement de froid extrême’ changera pour ‘avertissement de froid’, 3) deux noms de zones publiques seront modifiés en Saskatchewan, 4) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique se poursuit. Des changements seront également apportés au PAC et 5) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Sat January 24, 2026, 9:59 PM
Expires: Sun January 25, 2026, 1:59 PM

A prolonged period of very cold wind chills is expected. What: Wind chill values near minus 40. When: Continuing through Sunday morning, possibly returning overnight Sunday into Monday morning for some areas. Additional information: Little relief is expected during the day as an Arctic airmass establishes itself over the region. ### Extreme cold puts everyone at risk. Risks are greater for young children, older adults, people with chronic illnesses, people working or exercising outdoors, and those without proper shelter. Watch for cold related symptoms: shortness of breath, chest pain, muscle pain and weakness, numbness and colour change in fingers and toes. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.

Cover up. Frostbite can develop within minutes on exposed skin, especially with wind chill. Keep emergency supplies in your vehicle such as extra blankets and jumper cables. If it’s too cold for you to stay outside, it’s too cold for your pet to stay outside. Watch for colour changes on fingers and toes, pain, numbness, a tingling sensation, or swelling. If present, move indoors and begin warming. Outdoor workers should take regularly scheduled breaks to warm up.


yellow warning - cold - in effect

Service Notice – November 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is tentatively set for deployment November 26, 2025. Data changes will appear in CAP following this deployment, 2) the alert name ‘extreme cold warning’ will change to ‘cold warning’, 3) two Public zone names will change in Saskatchewan, 4) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard continues, there will be changes coming to CAP and 5) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – novembre 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est provisoirement prévue pour un déploiement le 26 novembre 2025. Des changements aux données apparaîtront dans le PAC suite à ce déploiement, 2) le nom de l’alerte ‘avertissement de froid extrême’ changera pour ‘avertissement de froid’, 3) deux noms de zones publiques seront modifiés en Saskatchewan, 4) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique se poursuit. Des changements seront également apportés au PAC et 5) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Sat January 24, 2026, 3:52 PM
Expires: Sun January 25, 2026, 7:52 AM

A prolonged period of very cold wind chills is expected. What: Wind chill values near minus 40. When: Continuing through Sunday morning, possibly returning overnight Sunday into Monday morning for some areas. Additional information: Little relief is expected during the day as an Arctic airmass establishes itself over the region. ### Extreme cold puts everyone at risk. Risks are greater for young children, older adults, people with chronic illnesses, people working or exercising outdoors, and those without proper shelter. Watch for cold related symptoms: shortness of breath, chest pain, muscle pain and weakness, numbness and colour change in fingers and toes. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.

Cover up. Frostbite can develop within minutes on exposed skin, especially with wind chill. Keep emergency supplies in your vehicle such as extra blankets and jumper cables. If it’s too cold for you to stay outside, it’s too cold for your pet to stay outside. Watch for colour changes on fingers and toes, pain, numbness, a tingling sensation, or swelling. If present, move indoors and begin warming. Outdoor workers should take regularly scheduled breaks to warm up.


yellow warning - cold - in effect

Service Notice – November 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is tentatively set for deployment November 26, 2025. Data changes will appear in CAP following this deployment, 2) the alert name ‘extreme cold warning’ will change to ‘cold warning’, 3) two Public zone names will change in Saskatchewan, 4) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard continues, there will be changes coming to CAP and 5) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – novembre 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est provisoirement prévue pour un déploiement le 26 novembre 2025. Des changements aux données apparaîtront dans le PAC suite à ce déploiement, 2) le nom de l’alerte ‘avertissement de froid extrême’ changera pour ‘avertissement de froid’, 3) deux noms de zones publiques seront modifiés en Saskatchewan, 4) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique se poursuit. Des changements seront également apportés au PAC et 5) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Sun January 25, 2026, 4:28 AM
Expires: Sun January 25, 2026, 8:28 PM

A prolonged period of very cold wind chills is expected. What: Wind chill values near minus 40. When: Continuing through this morning, possibly returning tonight into Monday morning for some areas. Additional information: Very cold temperatures are occurring this morning across portions of northern Ontario, particularly in areas that remained clear during the night. Wind chills approaching minus 40 are possible again tonight into Monday morning for some locations. These very cold temperatures are expected to moderate somewhat on Monday, although below normal temperatures are expected for much of the upcoming week. ### Extreme cold puts everyone at risk. Risks are greater for young children, older adults, people with chronic illnesses, people working or exercising outdoors, and those without proper shelter. Watch for cold related symptoms: shortness of breath, chest pain, muscle pain and weakness, numbness and colour change in fingers and toes. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.

Cover up. Frostbite can develop within minutes on exposed skin, especially with wind chill. Keep emergency supplies in your vehicle such as extra blankets and jumper cables. If it’s too cold for you to stay outside, it’s too cold for your pet to stay outside. Watch for colour changes on fingers and toes, pain, numbness, a tingling sensation, or swelling. If present, move indoors and begin warming. Outdoor workers should take regularly scheduled breaks to warm up.


Cold Weather Advisory issued January 24 at 1:47PM CST until January 25 at 12:00PM CST by NWS Duluth MN

Effective: Sat January 24, 2026, 1:47 PM
Expires: Sun January 25, 2026, 6:00 AM

* WHAT...Very cold wind chills as low as 30 degrees below zero expected. * WHERE...In Minnesota, Crow Wing, Aitkin, Pine, Koochiching, Cass, Itasca, Carlton, St. Louis, Cook and Lake Counties. In Wisconsin, Price, Ashland, Bayfield, Burnett, Douglas, Iron, Sawyer, and Washburn Counties. This includes the Tribal Lands of the Grand Portage Reservation, the Red Cliff Band, the Bad River Reservation, the St. Croix Band in Burnett County, the Lac Courte Oreilles Reservation, the northwestern area of the Lac du Flambeau Band, the Fond du Lac Band, the Mille Lacs Band, Hinckley, Lena Lake, Big Sandy Lake and, East Lake areas and the Bois Forte Band, Deer Creek, Nett Lake and, Lake Vermilion areas. Other locations including Voyageurs National Park, the Apostle Islands National Lakeshore and Madeline Island. The entire Boundary Waters is also included. * WHEN...From 6 PM this evening to noon CST Sunday. * IMPACTS...The dangerously cold wind chills as low as 25 degrees below zero could cause frostbite on exposed skin in as little as 30 minutes. Very cold temperatures can lead to hypothermia with prolonged exposure.

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


Cold Weather Advisory issued January 25 at 1:18AM CST until January 26 at 12:00PM CST by NWS Duluth MN

Effective: Sun January 25, 2026, 1:18 AM
Expires: Sun January 25, 2026, 1:30 PM

* WHAT...Very cold wind chills as low as 40 degrees below zero in northeast Minnesota and as low as 35 degrees below zero in northwest Wisconsin. * WHERE...All of northeast Minnesota and northwest Wisconsin. * WHEN...Until Noon CST Monday. * IMPACTS...The dangerously cold wind chills of 30 to 40 degrees below zero could cause frostbite on exposed skin in as little as 10 minutes. Very cold temperatures can lead to hypothermia with prolonged exposure. * ADDITIONAL DETAILS...A temporary pause in the coldest wind chills will occur this afternoon, but quickly drop down again this evening.

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


Sunday, January 25, 2026

Weather Forecast

Partly Cloudy
-2.6°F
-14.4°F
-9.9°F
64%
0 in
0%
8%
9.4 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 5.25 μg/m3
PM10: 5.88 μg/m3
Carbon Monoxide: 176.69 μg/m3
Nitrogen Dioxide: 2.97 μg/m3
Sulphur Dioxide: 1.69 μg/m3
Ozone: 66.28 μg/m3

Astronomical

Sunrise: 7:34 AM
Sun Transit: 12:11 AM
Sunset: 4:48 PM
Daylight: 9 hrs 14 mins
Moonrise: 10:13 AM
Moon Transit: 5:35 PM
Moonset: 12:55 AM
Moon Phase: First Quarter
Moon Illumination: 45.8%

Best Times for Fishing or Hunting

Major Periods

4:42 AM - 7:12 AM
5:05 PM - 7:35 PM

Minor Periods

9:43 AM - 11:13 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Monday, January 26, 2026

Weather Forecast

Partly Cloudy
6.9°F
-12.6°F
-2.6°F
68%
0 in
0%
0%
16.8 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 5.3 μg/m3
PM10: 5.82 μg/m3
Carbon Monoxide: 172.01 μg/m3
Nitrogen Dioxide: 2.55 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 67.68 μg/m3

Astronomical

Sunrise: 7:33 AM
Sun Transit: 12:11 AM
Sunset: 4:50 PM
Daylight: 9 hrs 17 mins
Moonrise: 10:36 AM
Moon Transit: 6:29 PM
Moonset: 1:16 AM
Moon Phase: First Quarter
Moon Illumination: 57.1%

Best Times for Fishing or Hunting

Major Periods

5:34 AM - 8:04 AM
5:59 PM - 8:29 PM

Minor Periods

10:06 AM - 11:36 AM
12:46 AM - 2:16 AM

Action Rating: 2 out of 5

Tuesday, January 27, 2026

Weather Forecast

Partly Cloudy
8.6°F
-4.4°F
1.2°F
62%
0 in
0%
0%
14.8 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 5.78 μg/m3
PM10: 6.1 μg/m3
Carbon Monoxide: 167.13 μg/m3
Nitrogen Dioxide: 2.93 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 68.96 μg/m3

Astronomical

Sunrise: 7:32 AM
Sun Transit: 12:11 AM
Sunset: 4:51 PM
Daylight: 9 hrs 19 mins
Moonrise: 11:06 AM
Moon Transit: 7:27 PM
Moonset: 2:41 AM
Moon Phase: First Quarter
Moon Illumination: 68.0%

Best Times for Fishing or Hunting

Major Periods

6:30 AM - 9:00 AM
6:57 PM - 9:27 PM

Minor Periods

10:36 AM - 12:06 AM
2:11 AM - 3:41 AM

Action Rating: 2 out of 5

Wednesday, January 28, 2026

Weather Forecast

Overcast
4.5°F
-4.7°F
0.5°F
74%
0 in
0%
11%
12.3 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2 μg/m3
PM10: 2.07 μg/m3
Carbon Monoxide: 148.52 μg/m3
Nitrogen Dioxide: 1.78 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 70.8 μg/m3

Astronomical

Sunrise: 7:31 AM
Sun Transit: 12:11 AM
Sunset: 4:53 PM
Daylight: 9 hrs 22 mins
Moonrise: 11:48 AM
Moon Transit: 8:30 PM
Moonset: 4:04 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 78.1%

Best Times for Fishing or Hunting

Major Periods

7:31 AM - 10:01 AM
8:00 PM - 10:30 PM

Minor Periods

11:18 AM - 12:48 AM
3:34 AM - 5:04 AM

Action Rating: 3 out of 5

Thursday, January 29, 2026

Weather Forecast

Light freezing rain
3.4°F
-7.9°F
-1.5°F
87%
0.01 in
79%
36%
9.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.26 μg/m3
PM10: 1.3 μg/m3
Carbon Monoxide: 157.6 μg/m3
Nitrogen Dioxide: 1.49 μg/m3
Sulphur Dioxide: 1.3 μg/m3
Ozone: 68.85 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 12:11 AM
Sunset: 4:55 PM
Daylight: 9 hrs 25 mins
Moonrise: 12:46 AM
Moon Transit: 9:34 PM
Moonset: 5:18 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 86.7%

Best Times for Fishing or Hunting

Major Periods

8:35 AM - 11:05 AM
9:04 PM - 11:34 PM

Minor Periods

12:16 AM - 1:46 PM
4:48 AM - 6:18 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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