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

Hazardous Weather Conditions

Current conditions at

Grand Marais/Cook County Airport (KCKC)

Lat: 47.84°NLon: 90.39°WElev: 1784ft.

Fair

63°F

17°C

Humidity 73%
Wind Speed SW 9 G 17 mph
Barometer 29.83 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 11 Sep 8:55 am CDT
Extended Forecast for

Grand Portage MN

  • Today

    Today: Increasing clouds, with a high near 74. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 74 °F

    Increasing
    Clouds and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then showers likely. Low around 59. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 59 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before 7am. Mostly cloudy through mid morning, then gradual clearing, with a high near 70. Breezy, with a west wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 70 °F

    Chance
    Showers then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 63. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 63 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 48. Northwest wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Clear

  • Monday

    Monday: Showers likely after 1pm. Partly sunny, with a high near 63. Breezy, with a light east wind becoming southeast 10 to 15 mph in the morning. Winds could gust as high as 30 mph.

    High: 63 °F

    Breezy.
    Mostly Sunny
    then Showers
    Likely

  • Monday Night

    Monday Night: Showers, mainly before 1am. Mostly cloudy, with a low around 53. Breezy, with a southeast wind around 15 mph becoming west after midnight. Winds could gust as high as 35 mph.

    Low: 53 °F

    Showers and
    Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 65. Breezy, with a west wind around 15 mph, with gusts as high as 30 mph.

    High: 65 °F

    Partly Sunny
    and Breezy

Detailed Forecast

Today
Increasing clouds, with a high near 74. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Tonight
Showers and thunderstorms before 2am, then showers likely. Low around 59. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 30 percent chance of showers before 7am. Mostly cloudy through mid morning, then gradual clearing, with a high near 70. Breezy, with a west wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy, with a low around 50. West wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 63. West wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 48. Northwest wind around 5 mph becoming calm in the evening.
Monday
Showers likely after 1pm. Partly sunny, with a high near 63. Breezy, with a light east wind becoming southeast 10 to 15 mph in the morning. Winds could gust as high as 30 mph.
Monday Night
Showers, mainly before 1am. Mostly cloudy, with a low around 53. Breezy, with a southeast wind around 15 mph becoming west after midnight. Winds could gust as high as 35 mph.
Tuesday
Partly sunny, with a high near 65. Breezy, with a west wind around 15 mph, with gusts as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 48. Northwest wind around 5 mph, with gusts as high as 15 mph.
Wednesday
Mostly sunny, with a high near 64. Northwest wind 5 to 10 mph becoming south in the afternoon.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 52. Southwest wind around 5 mph.
Thursday
A slight chance of showers. Mostly sunny, with a high near 66. West wind 5 to 10 mph, with gusts as high as 20 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Portage MN
 47.96°N 89.69°W
Last Update:
7:46 am CDT Sep 11, 2026
Forecast Valid:
9am CDT Sep 11, 2026-6pm CDT Sep 17, 2026
 
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Additional Resources

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Chance of Precipitation