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

Hazardous Weather Conditions

Current conditions at

Copper Harbor (KP59)

Lat: 47.47°NLon: 87.88°WElev: 623ft.

76°F

24°C

Humidity 58%
Wind Speed Calm
Barometer 29.99 in (1014.7 mb)
Dewpoint 60°F (16°C)
Visibility NA
Heat Index78°F (26°C)
Last update 2 Sep 11:51 am EDT
Extended Forecast for

14 Miles SW Isle Royale National Park MI

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 68. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 68 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 3am, then showers likely and possibly a thunderstorm after 5am. Low around 48. Southwest wind 10 to 15 mph becoming northwest after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 48 °F

    Showers

  • Wednesday

    Wednesday: Showers likely, mainly before 8am. Cloudy, with a temperature falling to around 46 by 2pm. Breezy, with a north wind 20 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F⇓

    Breezy.
    Showers
    Likely then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Cloudy, with a low around 42. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 42 °F

    Chance
    Showers and
    Breezy

  • Thursday

    Thursday: A 40 percent chance of showers. Mostly cloudy, with a high near 50. Northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 50 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers. Cloudy, with a low around 44.

    Low: 44 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers before 2pm. Mostly cloudy, with a high near 51.

    High: 51 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 68. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
Showers and thunderstorms, mainly before 3am, then showers likely and possibly a thunderstorm after 5am. Low around 48. Southwest wind 10 to 15 mph becoming northwest after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely, mainly before 8am. Cloudy, with a temperature falling to around 46 by 2pm. Breezy, with a north wind 20 to 25 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 50 percent chance of showers. Cloudy, with a low around 42. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 50. Northwest wind around 15 mph, with gusts as high as 25 mph.
Thursday Night
A 30 percent chance of showers. Cloudy, with a low around 44.
Friday
A 30 percent chance of showers before 2pm. Mostly cloudy, with a high near 51.
Friday Night
Mostly cloudy, with a low around 46.
Saturday
Partly sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
14 Miles SW Isle Royale National Park MI
 48°N 88.85°W (Elev. 702 ft)
Last Update:
6:26 am EDT Sep 2, 2025
Forecast Valid:
12pm EDT Sep 2, 2025-6pm EDT Sep 8, 2025
 
Forecast Discussion
 
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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