Keystone Bay Weather Forecast

    • 62
    • 71

    Rain Showers

    • 59
    • 73

    Rain Showers

    • 58
    • 70

    Chance Thunderstorms

    • 59
    • 70

    Mostly Cloudy

    • 61
    • 73

    Mostly Cloudy

    • 59
    • 73

    Mostly Cloudy

Today 22 Jul Keweenaw

A chance of Showers with a slight chance of Thunderstorms in the afternoon. Partly cloudy. Highs 76 to 81. South Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 22 Jul Keweenaw

A chance of Thunderstorms. Showers. Lows 61 to 66. South Winds 5 to 10 Mph, becoming southwest after midnight. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Keystone Bay Temperature Statistics

July Temperature

Copper Harbor (6.8 miles)

  • Lowest 7 July, 2025

    49.6 °F

  • Average July

    64.4 °F

  • Highest 13 July, 2025

    85.6 °F

Climate (2020–Present)

Copper Harbor (6.8 miles)

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  • Average Low 2020–2025

    38.5 °F

  • Average 2020–2025

    44.6 °F

  • Average High 2020–2025

    50.8 °F
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