Flattop Island Weather Forecast

    • 55
    • 66

    Becoming Sunny

    • 58
    • 71

    Partly Sunny

    • 59
    • 73

    Partly Sunny

    • 58
    • 74

    Mostly Cloudy

    • 55
    • 71

    Mostly Sunny

    • 54
    • 66

    Mostly Sunny

    • 55
    • 67

    Mostly Sunny

Today 12 Jun San Juan County

Sunny. Highs in the mid 60s to lower 70s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 12 Jun San Juan County

Mostly clear. Lows in the 50s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Flattop Island Temperature Statistics

June Temperature

Eastsound, Orcas Island Airport (8.7 miles)

  • Lowest 6 June, 2026

    48.2 °F

  • Average June

    58.2 °F

  • Highest 2 June, 2026

    75.2 °F

Climate (2021–Present)

Eastsound, Orcas Island Airport (8.7 miles)

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  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    57.9 °F
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