Swinomish Channel - Shelter Bay Weather Forecast

    • 36
    • 45

    Mostly Cloudy

    • 37
    • 45

    Mostly Cloudy

    • 38
    • 46

    Mostly Cloudy

    • 42
    • 48

    Chance Rain

    • 41
    • 48

    Chance Rain

    • 40
    • 47

    Chance Rain/Snow

Today 29 Dec Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy. Highs in the mid 40s.

Tonight 29 Dec Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy. Patchy fog. Lows in the mid 30s.

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  • Temperature Forecast NOAA

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Swinomish Channel - Shelter Bay Temperature Statistics

December Temperature

Whidbey Island Naval Air Station - Ault Field (6.8 miles)

  • Lowest 1 December, 2025

    34 °F

  • Average December

    45.9 °F

  • Highest 15 December, 2025

    61 °F

Climate (2020–Present)

Whidbey Island Naval Air Station - Ault Field (6.8 miles)

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  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    50.1 °F

  • Average High 2020–2025

    56.1 °F
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