Slate Island Weather Forecast

    • 43
    • 49

    Chance Rain

    • 45
    • 52

    Rain Showers Likely

    • 44
    • 51

    Rain Showers Likely

    • 46
    • 55

    Slight Chance Rain Showers

    • 45
    • 57

    Mostly Sunny

    • 44
    • 53

    Mostly Cloudy

Today 13 May Coastal Washington

Partly sunny. A slight chance of rain this afternoon. Highs in the upper 50s. West Winds around 5 Mph, becoming south with Gusts up to 20 Mph this afternoon. Chance of rain 20 percent.

Tonight 13 May Coastal Washington

Cloudy. A chance of rain in the evening. Patchy fog. Lows in the lower 40s. South Winds around 5 Mph. Gusts up to 20 Mph in the evening. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Slate Island Temperature Statistics

May Temperature

Bar Harbor, Hancock County-Bar Harbor Airport (37.3 miles)

  • Lowest 2 May, 2026

    30.9 °F

  • Average May

    48.3 °F

  • Highest 1 May, 2026

    59 °F

Climate (2021–Present)

Bar Harbor, Hancock County-Bar Harbor Airport (37.3 miles)

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  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    46.4 °F

  • Average High 2021–2026

    54.5 °F
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