National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Grand Marais/Cook County Airport (KCKC)

Lat: 47.84°NLon: 90.39°WElev: 1784ft.

Fair

73°F

23°C

Humidity 47%
Wind Speed SE 3 mph
Barometer 30.15 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 5 Jul 11:35 am CDT
Extended Forecast for

Grand Portage MN

  • Today

    Today: Sunny, with a high near 70. East wind around 5 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 49. Calm wind.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 71. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of showers between midnight and 1am, then a chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 53. South wind around 5 mph becoming calm. Chance of precipitation is 30%.

    Low: 53 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 78. West wind around 5 mph. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 53. Southwest wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 71. Calm wind becoming east around 5 mph in the afternoon.

    High: 71 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 51. Calm wind becoming north around 5 mph.

    Low: 51 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 73. North wind around 5 mph becoming south in the afternoon.

    High: 73 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 70. East wind around 5 mph.
Tonight
Mostly clear, with a low around 49. Calm wind.
Monday
Sunny, with a high near 71. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
A slight chance of showers between midnight and 1am, then a chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 53. South wind around 5 mph becoming calm. Chance of precipitation is 30%.
Tuesday
A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 78. West wind around 5 mph. Chance of precipitation is 30%.
Tuesday Night
A 40 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 53. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers. Mostly cloudy, with a high near 71. Calm wind becoming east around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 51. Calm wind becoming north around 5 mph.
Thursday
Sunny, with a high near 73. North wind around 5 mph becoming south in the afternoon.
Thursday Night
Partly cloudy, with a low around 51. Southwest wind around 5 mph becoming calm.
Friday
Mostly sunny, with a high near 71. Calm wind becoming southeast around 5 mph in the morning.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 51. South wind around 5 mph becoming calm.
Saturday
Mostly sunny, with a high near 73. Calm wind becoming south around 5 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Portage MN
 47.96°N 89.69°W
Last Update:
11:06 am CDT Jul 5, 2026
Forecast Valid:
11am CDT Jul 5, 2026-6pm CDT Jul 11, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation