Deception Pass Weather Forecast

    • 51
    • 65

    Mostly Sunny

    • 52
    • 68

    Mostly Sunny

    • 51
    • 69

    Mostly Sunny

    • 51
    • 68

    Mostly Sunny

    • 51
    • 66

    Partly Sunny

    • 51
    • 67

    Partly Sunny

    • 52
    • 67

    Slight Chance Rain

Today 15 Sep Lowlands of Western Skagit and Northwestern Snohomish Counties

Partly sunny. A chance of rain in the Morning, then a slight chance of rain in the afternoon. Highs in the mid 60s to lower 70s.

Tonight 15 Sep Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly clear. Patchy fog late in the night. Lows in the upper 40s to mid 50s. Northwest wind to 10 Mph in the evening becoming light.

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Deception Pass Temperature Statistics

September Temperature

Whidbey Island Naval Air Station - Ault Field (3.1 miles)

  • Lowest 6 September, 2026

    46.9 °F

  • Average September

    57.5 °F

  • Highest 7 September, 2026

    69.1 °F

Climate (2021–2026)

Whidbey Island Naval Air Station - Ault Field (3.1 miles)

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  • Average Low 2021–2026

    44.4 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    55.9 °F
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