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Grand Portage, Minnesota Weather Forecast
Grand Portage, Minnesota Weather
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Weather Forecast for Grand Portage, Minnesota : Cook County
Issued: 5:41 am CST Dec 15, 2025 Latitude: 47.963776 Longitude: -89.6848121 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
20% chance of snow on Today Increasing Clouds on Tonight 20% chance of freezing rain on Tuesday 20% chance of snow on Wednesday Snow on Thursday 20% chance of snow on Friday 10% chance of snow on Saturday Mostly Sunny on Sunday
High: 20°F Low: 12 °F High: 42°F High: 32°F High: 29°F High: 24°F High: 26°F High: 17°F
Low: 14°F Low: 26°F Low: -8°F Low: 13°F Low: -1°F  
Snow Increasing Clouds Freezing Rain Snow Snow Snow Snow Mostly Sunny
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Current Conditions at
GRAND MARAIS - (KCKC)
7°
Mostly Cloudy
as of 7:35 AM CST
Rel. Humidity: 77%
Dew Point: 1°F
Visibility: 10 Miles
Pressure: 29.84 in.
Flight Rule: VFR
Wind Data
7 MPH
330° Northwest
Cloud Level(s): Scattered at 1900ft, Broken at 11000ft
Current Conditions at
GRAND MARAIS, THE BAY OF - (KGNA)
16°
Feels like 4°F
Cloudy
as of 6:56 AM CST
Rel. Humidity: 66%
Dew Point: 7°F
Pressure: 29.98 in.
Wind Data
9 MPH
280° West
Current Conditions at
HANCOCK - (KCMX)
16°
Feels like 3°F
Cloudy
Light Snow
as of 8:15 AM EST
Rel. Humidity: 66%
Dew Point: 7°F
Visibility: 7 Miles
Pressure: 29.91 in.
Flight Rule: MVFR
Wind Data
10 MPH
250° West
Cloud Level(s): Solid Overcast at 1400ft
20% chance of snow Today Today... A chance of flurries before 9am. Partly sunny, with a high near 20. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Increasing Clouds on Tonight Tonight... Increasing clouds, with a temperature falling to near 12 by 9pm, then rising to around 25 during the remainder of the night. Breezy, with a west wind 5 to 10 mph becoming southwest 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
20% chance of freezing rain Tuesday Tuesday... A slight chance of freezing rain and sleet before 11am, then a slight chance of rain between 11am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 42. Breezy, with a southwest wind around 15 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 14. Breezy, with a northwest wind 5 to 15 mph, with gusts as high as 40 mph.
20% chance of snow Wednesday Wednesday... A 20 percent chance of snow after noon. Partly sunny, with a high near 32. Northwest wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 30 mph.
70% chance of rain & snow Wednesday Night Wednesday Night... Rain and snow likely, becoming all snow after 3am. Cloudy, with a low around 26. Breezy, with a south wind 10 to 15 mph becoming northwest after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Snow on Thursday Thursday... Snow likely, mainly before noon. Mostly cloudy, with a high near 29. Blustery, with a north wind 15 to 20 mph, with gusts as high as 45 mph.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around -8. Blustery, with a north wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 45 mph.
20% chance of snow Friday Friday... A chance of snow after noon. Partly sunny, with a high near 24. Breezy, with a northwest wind 5 to 15 mph becoming south in the afternoon. Winds could gust as high as 30 mph.
Snow on Friday Night Friday Night... Snow likely, mainly before midnight. Mostly cloudy, with a low around 13. Breezy, with a south wind 10 to 15 mph, with gusts as high as 35 mph.
10% chance of snow Saturday Saturday... A slight chance of snow. Partly sunny, with a high near 26. Southwest wind around 10 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around -1. Northwest wind 5 to 10 mph, with gusts as high as 25 mph.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 17. Northwest wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Sun Almanac for Grand Portage, Minnesota
Sunrise: 07:42 AM
Sunset: 4:06 PM
Civil Sunrise:07:06 AM
Civil Sunset: 4:42 PM
Nautical Sunrise: 06:26 AM
Nautical Sunset: 5:22 PM
Astro Sunrise: 05:48 AM
Astro Sunset: 6:00 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.