Current conditions at

Grand Marais/Cook County Airport (KCKC)

Lat: 47.84°NLon: 90.39°WElev: 1784ft.

Overcast

37°F

3°C

Humidity 93%
Wind Speed N 8 mph
Barometer 29.89 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 12 May 9:15 pm CDT
Extended Forecast for

Grand Portage MN

Frost Advisory May 13, 01:00am until May 13, 08:00am
Click here for hazard details and duration
Frost Advisory
  • Tonight

    Tonight: A slight chance of rain showers, mixing with snow after 11pm, then gradually ending.  Patchy frost after midnight.  Otherwise, partly cloudy, with a low around 36. Northwest wind 5 to 10 mph, with gusts as high as 25 mph.  Chance of precipitation is 20%.

    Low: 36 °F

    Slight Chance
    Rain/Snow
    then Patchy
    Frost

  • Wednesday

    Wednesday: Mostly sunny, with a high near 56. North wind around 10 mph, with gusts as high as 20 mph.

    High: 56 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Areas of frost after 2am.  Otherwise, partly cloudy, with a low around 35. North wind around 5 mph becoming calm  in the evening.

    Low: 35 °F

    Partly Cloudy
    then Areas
    Frost

  • Thursday

    Thursday: Mostly sunny, with a high near 52. Calm wind becoming southeast around 5 mph in the morning.

    High: 52 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers, mainly after 1am.  Low around 41. East wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 64. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 64 °F

    Partly Sunny
    then Mostly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46. Breezy, with a west wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 46 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 58. Breezy, with a west wind 10 to 15 mph, with gusts as high as 35 mph.

    High: 58 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37. Northwest wind around 5 mph becoming northeast after midnight.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of rain showers, mixing with snow after 11pm, then gradually ending. Patchy frost after midnight. Otherwise, partly cloudy, with a low around 36. Northwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 56. North wind around 10 mph, with gusts as high as 20 mph.
Wednesday Night
Areas of frost after 2am. Otherwise, partly cloudy, with a low around 35. North wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 52. Calm wind becoming southeast around 5 mph in the morning.
Thursday Night
Showers, mainly after 1am. Low around 41. East wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly sunny, with a high near 64. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Friday Night
Partly cloudy, with a low around 46. Breezy, with a west wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday
Mostly sunny, with a high near 58. Breezy, with a west wind 10 to 15 mph, with gusts as high as 35 mph.
Saturday Night
Partly cloudy, with a low around 37. Northwest wind around 5 mph becoming northeast after midnight.
Sunday
A chance of showers. Partly sunny, with a high near 50. East wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Showers likely. Mostly cloudy, with a low around 40. Northeast wind 5 to 10 mph, with gusts as high as 25 mph.
Monday
A chance of showers. Mostly cloudy, with a high near 57. Northeast wind around 10 mph, with gusts as high as 25 mph.
Monday Night
A chance of showers. Mostly cloudy, with a low around 41. North wind 5 to 10 mph, with gusts as high as 25 mph.
Tuesday
A slight chance of showers. Partly sunny, with a high near 54. Northwest wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Portage MN
 47.96°N 89.69°W
8:47 pm CDT May 12, 2026
9pm CDT May 12, 2026-6pm CDT May 19, 2026
 
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