Washington Harbor Weather Forecast

    • 35
    • 46

    Rain Showers

    • 36
    • 53

    Partly Sunny

    • 42
    • 55

    Partly Sunny

    • 41
    • 56

    Chance Rain Showers

    • 38
    • 56

    Breezy

    • 39
    • 53

    Chance Rain Showers

Today 12 May Keweenaw

Rain Showers. Near steady temperature in the lower 40s. Southeast Winds 10 to 20 Mph with Gusts up to 35 Mph. Chance of rain 100 percent.

Tonight 12 May Keweenaw

A chance of rain Showers in the Evening, then a slight chance of rain Showers after midnight. Cloudy. Lows around 35. North Winds 5 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Washington Harbor Temperature Statistics

May Temperature

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

  • Lowest 2 May, 2026

    26.1 °F

  • Average May

    39.4 °F

  • Highest 4 May, 2026

    54 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    33.6 °F

  • Average 2021–2026

    41.1 °F

  • Average High 2021–2026

    48.3 °F
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