San Juan Island - Deadman Bay Weather Forecast

    • 44
    • 62

    Mostly Sunny

    • 46
    • 63

    Rain Likely

    • 46
    • 59

    Chance Rain

    • 44
    • 59

    Rain

    • 43
    • 58

    Rain Likely

    • 43
    • 59

    Rain Likely

Today 2 May San Juan County

Sunny. Highs in the upper 50s to mid 60s. North wind to 10 Mph.

Tonight 2 May San Juan County

Mostly clear. Lows in the 40s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Juan Island - Deadman Bay Temperature Statistics

May Temperature

Friday Harbor Airport (5 miles)

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  • Average May

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Climate (2019–Present)

Friday Harbor Airport (5 miles)

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  • Average Low 2019–2024

    43.9 °F

  • Average 2019–2024

    50.9 °F

  • Average High 2019–2024

    58.5 °F
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