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

Current Water Temperature

32.0°F

Measurement Time: Friday, May 22, 2026, 4:19 AM 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

47.1°F
Sunny
Sunny
44.2°F
47.1°F
50%
E 6.9 mph
9.5 mph
44.2°F
29.6°F
0 in
0%
6 mi
1027 mbar
2

Five Day Weather Forecast

Sunny
Fri
H: 59°F
L: 36°F
Moderate rain
Sat
H: 45°F
L: 39°F
Patchy rain nearby
Sun
H: 56°F
L: 47°F
Patchy rain nearby
Mon
H: 67°F
L: 46°F
Patchy rain nearby
Tue
H: 66°F
L: 52°F

Air Quality

AQI: 1 - Good
PM2.5: 2.35 μg/m3
PM10: 2.55 μg/m3
Carbon Monoxide: 117.85 μg/m3
Nitrogen Dioxide: 1.45 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 83 μg/m3

Astronomical

Sunrise: 5:12 AM
Sun Transit: 12:55 AM
Sunset: 8:40 PM
Daylight: 15 hrs 28 mins
Moonrise: 11:26 AM
Moon Transit: 6:50 PM
Moonset: 1:37 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

5:58 AM - 8:28 AM
6:20 PM - 8:50 PM

Minor Periods

10:56 AM - 12:26 AM
1:07 AM - 2:37 AM

Action Rating: 3 out of 5

yellow advisory - frost - in effect

Service Notice – April 2026: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For Spring 2026, changes are expected to include... 1) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard is tentatively set for June 2026 deployment. Data changes will appear in CAP following this deployment, 2) marine alerts will now be issued for smaller zone splits in certain areas of Atlantic and Pacific waters and 3) 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 – avril 2026: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour le printemps 2026, il y aura des changements incluant... 1) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique devrait être déployée provisoirement en juin 2026. Des changements de données apparaîtront dans le PAC à la suite de ce déploiement, 2) les alertes marines seront désormais émises pour des subdivisions de zones plus petites dans certaines régions des eaux de l’Atlantique et du Pacifique et 3) 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: Thu May 21, 2026, 1:56 PM
Expires: Fri May 22, 2026, 5:56 AM

Frost is expected tonight. Temperatures are expected to be near or below the freezing mark tonight into Friday morning. ### Damage to plants, trees, and crops is possible. 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.

Take preventative measures to protect cold-sensitive plants, trees, and crops.


yellow advisory - frost - in effect

Service Notice – April 2026: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For Spring 2026, changes are expected to include... 1) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard is tentatively set for June 2026 deployment. Data changes will appear in CAP following this deployment, 2) marine alerts will now be issued for smaller zone splits in certain areas of Atlantic and Pacific waters and 3) 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 – avril 2026: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour le printemps 2026, il y aura des changements incluant... 1) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique devrait être déployée provisoirement en juin 2026. Des changements de données apparaîtront dans le PAC à la suite de ce déploiement, 2) les alertes marines seront désormais émises pour des subdivisions de zones plus petites dans certaines régions des eaux de l’Atlantique et du Pacifique et 3) 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: Fri May 22, 2026, 3:34 AM
Expires: Fri May 22, 2026, 9:59 AM

Frost expected early this morning. Temperatures are expected to be near or below the freezing mark early this morning. ### Damage to plants, trees, and crops is possible. 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.

Take preventative measures to protect cold-sensitive plants, trees, and crops.


yellow advisory - frost - in effect

Service Notice – April 2026: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For Spring 2026, changes are expected to include... 1) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard is tentatively set for June 2026 deployment. Data changes will appear in CAP following this deployment, 2) marine alerts will now be issued for smaller zone splits in certain areas of Atlantic and Pacific waters and 3) 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 – avril 2026: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour le printemps 2026, il y aura des changements incluant... 1) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique devrait être déployée provisoirement en juin 2026. Des changements de données apparaîtront dans le PAC à la suite de ce déploiement, 2) les alertes marines seront désormais émises pour des subdivisions de zones plus petites dans certaines régions des eaux de l’Atlantique et du Pacifique et 3) 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: Fri May 22, 2026, 3:34 AM
Expires: Fri May 22, 2026, 9:59 AM

### Damage to plants, trees, and crops is possible. 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.

Take preventative measures to protect cold-sensitive plants, trees, and crops.


Friday, May 22, 2026

Weather Forecast

Sunny
58.8°F
36.1°F
46.3°F
52%
0 in
0%
0%
12.8 mph
6.3


Air Quality

AQI: 1 - Good
PM2.5: 2.27 μg/m3
PM10: 2.51 μg/m3
Carbon Monoxide: 117.61 μg/m3
Nitrogen Dioxide: 2.17 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 74.4 μg/m3

Astronomical

Sunrise: 5:12 AM
Sun Transit: 12:55 AM
Sunset: 8:40 PM
Daylight: 15 hrs 28 mins
Moonrise: 11:26 AM
Moon Transit: 6:50 PM
Moonset: 1:37 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

5:58 AM - 8:28 AM
6:20 PM - 8:50 PM

Minor Periods

10:56 AM - 12:26 AM
1:07 AM - 2:37 AM

Action Rating: 3 out of 5

Saturday, May 23, 2026

Weather Forecast

Moderate rain
44.9°F
39°F
42.9°F
94%
0.53 in
88%
0%
7.8 mph
2.4


Air Quality

AQI: 1 - Good
PM2.5: 4.83 μg/m3
PM10: 5.24 μg/m3
Carbon Monoxide: 122.57 μg/m3
Nitrogen Dioxide: 2.16 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 76.2 μg/m3

Astronomical

Sunrise: 5:11 AM
Sun Transit: 12:55 AM
Sunset: 8:41 PM
Daylight: 15 hrs 30 mins
Moonrise: 12:44 AM
Moon Transit: 7:36 PM
Moonset: 1:57 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

6:46 AM - 9:16 AM
7:06 PM - 9:36 PM

Minor Periods

12:14 AM - 1:44 PM
1:27 AM - 2:57 AM

Action Rating: 2 out of 5

Sunday, May 24, 2026

Weather Forecast

Patchy rain nearby
56.1°F
46.7°F
50.2°F
89%
0.01 in
89%
0%
6.5 mph
6.3


Air Quality

AQI: 1 - Good
PM2.5: 5.03 μg/m3
PM10: 5.21 μg/m3
Carbon Monoxide: 133.21 μg/m3
Nitrogen Dioxide: 2.79 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 58.84 μg/m3

Astronomical

Sunrise: 5:10 AM
Sun Transit: 12:55 AM
Sunset: 8:42 PM
Daylight: 15 hrs 32 mins
Moonrise: 1:57 PM
Moon Transit: 8:19 PM
Moonset: 2:14 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

7:31 AM - 10:01 AM
7:49 PM - 10:19 PM

Minor Periods

1:27 PM - 2:57 PM
1:44 AM - 3:14 AM

Action Rating: 2 out of 5

Monday, May 25, 2026

Weather Forecast

Patchy rain nearby
66.5°F
45.6°F
56.6°F
85%
0.05 in
89%
0%
11 mph
6.4


Air Quality

AQI: 1 - Good
PM2.5: 3.33 μg/m3
PM10: 3.48 μg/m3
Carbon Monoxide: 121.61 μg/m3
Nitrogen Dioxide: 3.05 μg/m3
Sulphur Dioxide: 1.27 μg/m3
Ozone: 63.16 μg/m3

Astronomical

Sunrise: 5:09 AM
Sun Transit: 12:55 AM
Sunset: 8:43 PM
Daylight: 15 hrs 35 mins
Moonrise: 3:07 PM
Moon Transit: 9:01 PM
Moonset: 2:29 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%

Best Times for Fishing or Hunting

Major Periods

8:13 AM - 10:43 AM
8:31 PM - 11:01 PM

Minor Periods

2:37 PM - 4:07 PM
1:59 AM - 3:29 AM

Action Rating: 3 out of 5

Tuesday, May 26, 2026

Weather Forecast

Patchy rain nearby
66.2°F
52.2°F
59.3°F
81%
0.01 in
83%
0%
8.9 mph
0.5


Air Quality

AQI: 1 - Good
PM2.5: 4.42 μg/m3
PM10: 4.91 μg/m3
Carbon Monoxide: 152.5 μg/m3
Nitrogen Dioxide: 3.34 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 67.92 μg/m3

Astronomical

Sunrise: 5:08 AM
Sun Transit: 12:55 AM
Sunset: 8:44 PM
Daylight: 15 hrs 36 mins
Moonrise: 4:17 PM
Moon Transit: 9:43 PM
Moonset: 2:43 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.9%

Best Times for Fishing or Hunting

Major Periods

8:55 AM - 11:25 AM
9:13 PM - 11:43 PM

Minor Periods

3:47 PM - 5:17 PM
2:13 AM - 3:43 AM

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

Sponsored Content