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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Grand Portage MN

  • Overnight

    Overnight: Showers and possibly a thunderstorm. Areas of fog. Low around 59. East wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers and
    Areas Fog

  • Monday

    Monday: Showers and thunderstorms likely, mainly before 11am. Areas of fog before 1pm. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 77. East wind around 5 mph becoming south in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely and
    Areas Fog
    then Patchy
    Fog

  • Monday Night

    Monday Night: Patchy fog between 10pm and 11pm. Otherwise, partly cloudy, with a low around 59. West wind around 5 mph.

    Low: 59 °F

    Patchy Fog
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58. West wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 58 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 78. Northwest wind around 5 mph becoming south in the afternoon.

    High: 78 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 74. North wind around 5 mph becoming east in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers after 1am. Partly cloudy, with a low around 55. East wind around 5 mph becoming calm.

    Low: 55 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Areas of fog. Low around 59. East wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and thunderstorms likely, mainly before 11am. Areas of fog before 1pm. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 77. East wind around 5 mph becoming south in the afternoon. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Patchy fog between 10pm and 11pm. Otherwise, partly cloudy, with a low around 59. West wind around 5 mph.
Tuesday
Mostly sunny, with a high near 82. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 58. West wind 5 to 10 mph, with gusts as high as 15 mph.
Wednesday
Partly sunny, with a high near 78. Northwest wind around 5 mph becoming south in the afternoon.
Wednesday Night
Partly cloudy, with a low around 56. Calm wind.
Thursday
Mostly sunny, with a high near 74. North wind around 5 mph becoming east in the afternoon.
Thursday Night
A slight chance of showers after 1am. Partly cloudy, with a low around 55. East wind around 5 mph becoming calm.
Friday
A slight chance of showers. Mostly sunny, with a high near 71. East wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
Partly cloudy, with a low around 56. East wind around 5 mph becoming calm in the evening.
Saturday
A slight chance of showers. Mostly sunny, with a high near 74. East wind 5 to 10 mph.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 57. East wind around 5 mph becoming calm in the evening.
Sunday
A slight chance of showers. Partly sunny, with a high near 75. North wind 5 to 10 mph becoming south in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Portage MN
 47.98°N 89.69°W
Last Update:
2:51 am CDT Aug 31, 2026
Forecast Valid:
5am CDT Aug 31, 2026-6pm CDT Sep 6, 2026
 
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Additional Resources

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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