Dinner Island Weather Forecast

    • 35
    • 44

    Decreasing Clouds

    • 34
    • 44

    Mostly Sunny

    • 36
    • 43

    Mostly Cloudy

    • 36
    • 44

    Mostly Cloudy

    • 37
    • 45

    Mostly Cloudy

    • 38
    • 46

    Chance Rain

Today 18 Jan San Juan County

Mostly sunny. Highs in the upper 30s to mid 40s. Northeast wind 10 to 15 Mph with Gusts to 25 Mph.

Tonight 18 Jan San Juan County

Mostly clear. Lows in the upper 20s to mid 30s. North wind around 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dinner Island Temperature Statistics

January Temperature

Friday Harbor Airport (0.6 miles)

  • Lowest 13 January, 2025

    35.1 °F

  • Average January

    43.9 °F

  • Highest 15 January, 2025

    54 °F

Climate (2020–Present)

Friday Harbor Airport (0.6 miles)

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  • Average Low 2020–2025

    44.2 °F

  • Average 2020–2025

    51.4 °F

  • Average High 2020–2025

    59.1 °F
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