Water Temperature of the Grand Portage River in Grand Portage, MN
Current Water Temperature
Measurement Time: Sunday, January 18, 2026, 2:15 AM CST
Temperature Locations
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Local Points of Interest
Grand Portage Bay; Lake SuperiorStation 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

Five Day Weather Forecast

Sun
H: 6°F
L: -8°F

Mon
H: -7°F
L: -16°F

Tue
H: -9°F
L: -19°F

Wed
H: 11°F
L: -13°F

Thu
H: 13°F
L: -3°F
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 12:09 AM
Sunset: 4:38 PM
Daylight: 8 hrs 57 mins
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 AM11:38 AM - 2:08 PM
Minor Periods
3:52 PM - 5:22 PM7:33 AM - 9:03 AM
Action Rating: 4 out of 5
Cold Weather Advisory issued January 17 at 9:26PM CST until January 19 at 12:00PM CST by NWS Duluth MN
Effective: Sat January 17, 2026, 9:26 PM
Expires: Sun January 18, 2026, 9:30 AM
* WHAT...Very cold wind chills as low as 40 below zero expected. * WHERE...Cook and Lake Counties. This includes the Tribal Lands of the Grand Portage Reservation. This also includes the Boundary Waters eastern and central area. * WHEN...From 9 PM Sunday 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 1:42AM CST until January 19 at 6:00AM CST by NWS Duluth MN
Effective: Sun January 18, 2026, 1:42 AM
Expires: Sun January 18, 2026, 4:00 PM
* WHAT...For the Wind Advisory, northwest winds 10 to 20 mph with gusts up to 45 mph expected. For the Cold Weather Advisory, very cold wind chills as low as 38 below zero expected. * WHERE...Southern Cook and Southern Lake Counties. This includes the Tribal Lands of the Grand Portage Reservation. * WHEN...For the Wind Advisory, from 9 PM this evening to 6 AM CST Monday. For the Cold Weather Advisory, from 9 PM this evening to noon 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 1:42AM CST until January 19 at 12:00PM CST by NWS Duluth MN
Effective: Sun January 18, 2026, 1:42 AM
Expires: Sun January 18, 2026, 4:00 PM
* 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...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.
Cold Weather Advisory issued January 18 at 1:42AM CST until January 19 at 12:00PM CST by NWS Duluth MN
Effective: Sun January 18, 2026, 1:42 AM
Expires: Sun January 18, 2026, 4:00 PM
* WHAT...For the Wind Advisory, northwest winds 10 to 20 mph with gusts up to 45 mph expected. For the Cold Weather Advisory, very cold wind chills as low as 38 below zero expected. * WHERE...Southern Cook and Southern Lake Counties. This includes the Tribal Lands of the Grand Portage Reservation. * WHEN...For the Wind Advisory, from 9 PM this evening to 6 AM CST Monday. For the Cold Weather Advisory, from 9 PM this evening to noon 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.
Weather Forecast
Air Quality
Nitrogen Dioxide: 1.81 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 66.85 μg/m3
Astronomical
Sun Transit: 12:09 AM
Sunset: 4:38 PM
Daylight: 8 hrs 57 mins
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 AM11:38 AM - 2:08 PM
Minor Periods
3:52 PM - 5:22 PM7:33 AM - 9:03 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 12:09 AM
Sunset: 4:39 PM
Daylight: 8 hrs 59 mins
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 AM12:28 AM - 2:58 PM
Minor Periods
5:06 PM - 6:36 PM8:00 AM - 9:30 AM
Action Rating: 5 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 12:09 AM
Sunset: 4:41 PM
Daylight: 9 hrs 2 mins
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 AM1:15 PM - 3:45 PM
Minor Periods
6:21 PM - 7:51 PM8:21 AM - 9:51 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 12:10 AM
Sunset: 4:42 PM
Daylight: 9 hrs 4 mins
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 AM2:00 PM - 4:30 PM
Minor Periods
7:36 PM - 9:06 PM8:38 AM - 10:08 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 12:10 AM
Sunset: 4:44 PM
Daylight: 9 hrs 6 mins
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 AM2:25 AM - 4:55 AM
Minor Periods
8:51 PM - 10:21 PM8:54 AM - 10:24 AM
Action Rating: 2 out of 5
