Washington Harbor Weather Forecast

    • 48
    • 64

    Slight Chance Rain Showers

    • 47
    • 60

    Chance Rain Showers

    • 47
    • 63

    Partly Sunny

    • 47
    • 63

    Mostly Cloudy

    • 49
    • 68

    Chance Rain Showers

    • 53
    • 74

    Rain Showers Likely

Today 23 Jun Keweenaw

Mostly sunny. Highs in the upper 60s. Light north Winds, becoming south in the afternoon.

Tonight 23 Jun Keweenaw

A slight chance of rain Showers after midnight. Cloudy. Lows 46 to 51 inland to around 52 at the shore. Light southeast Winds, becoming east after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Washington Harbor Temperature Statistics

June Temperature

Grand Marais, The Bay of Grand Marais (54.1 miles)

  • Lowest 11 June, 2026

    37.9 °F

  • Average June

    49.4 °F

  • Highest 14 June, 2026

    71.1 °F

Climate (2021–2026)

Grand Marais, The Bay of Grand Marais (54.1 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    41 °F

  • Average High 2021–2026

    48.2 °F
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