Colville Island Weather Forecast

    • 54
    • 62

    Mostly Cloudy

    • 52
    • 60

    Partly Sunny

    • 53
    • 60

    Chance Rain

    • 52
    • 62

    Slight Chance Rain

    • 52
    • 64

    Partly Sunny

    • 52
    • 61

    Partly Sunny

    • 52
    • 63

    Partly Sunny

Today 9 Sep San Juan County

Mostly sunny. Patchy fog in the morning. Highs in the mid 60s to lower 70s. Light wind.

Tonight 9 Sep San Juan County

Mostly cloudy until early morning then becoming partly cloudy. Lows in the 50s. Light wind becoming southwest 10 to 15 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Colville Island Temperature Statistics

September Temperature

Whidbey Island Naval Air Station - Ault Field (8.1 miles)

  • Lowest 6 September, 2026

    46.9 °F

  • Average September

    58.1 °F

  • Highest 7 September, 2026

    69.1 °F

Climate (2021–2026)

Whidbey Island Naval Air Station - Ault Field (8.1 miles)

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  • Average Low 2021–2026

    44.4 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    56 °F
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