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

48°F

9°C

Humidity 50%
Wind Speed E 12 G 20 mph
Barometer 30.02 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 17 May 12:15 pm CDT
Extended Forecast for

5 Miles WNW Grand Portage MN

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 48. Breezy, with an east wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 48 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 39. East wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Slight Chance
    T-storms then
    Showers

  • Monday

    Monday: A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon. Cloudy, with a high near 54. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    High: 54 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Monday Night

    Monday Night: Showers after 1am. Low around 35. Northeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 35 °F

    Cloudy then
    Showers

  • Tuesday

    Tuesday: Showers likely before 1pm. Cloudy, with a high near 43. Northwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Widespread frost after midnight. Otherwise, mostly cloudy, with a low around 30. North wind 5 to 10 mph becoming light northwest in the evening. Winds could gust as high as 25 mph.

    Low: 30 °F

    Mostly Cloudy
    then Frost

  • Wednesday

    Wednesday: Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 52. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 52 °F

    Frost then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Areas of frost after 11pm. Otherwise, mostly clear, with a low around 35. Southwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.

    Low: 35 °F

    Areas Frost

  • Thursday

    Thursday: Mostly sunny, with a high near 57. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 57 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 48. Breezy, with an east wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 39. East wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and noon. Cloudy, with a high near 54. North wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Monday Night
Showers after 1am. Low around 35. Northeast wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Showers likely before 1pm. Cloudy, with a high near 43. Northwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Widespread frost after midnight. Otherwise, mostly cloudy, with a low around 30. North wind 5 to 10 mph becoming light northwest in the evening. Winds could gust as high as 25 mph.
Wednesday
Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 52. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Wednesday Night
Areas of frost after 11pm. Otherwise, mostly clear, with a low around 35. Southwest wind around 5 mph becoming calm in the evening. Winds could gust as high as 15 mph.
Thursday
Mostly sunny, with a high near 57. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 39. Southeast wind around 5 mph becoming calm in the evening.
Friday
A chance of showers. Partly sunny, with a high near 58. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 15 mph.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 40. East wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers. Mostly cloudy, with a high near 59. Calm wind becoming southeast around 5 mph in the morning.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Grand Portage MN
 48°N 89.79°W
Last Update:
11:36 am CDT May 17, 2026
Forecast Valid:
12pm CDT May 17, 2026-6pm CDT May 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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