Marthas Bay Weather Forecast

    • 46
    • 58

    Mostly Sunny

    • 46
    • 55

    Mostly Cloudy

    • 45
    • 56

    Mostly Cloudy

    • 43
    • 56

    Mostly Sunny

    • 44
    • 58

    Mostly Cloudy

    • 46
    • 56

    Chance Rain

    • 43
    • 55

    Slight Chance Rain

Today 17 Oct Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy. A slight chance of rain in the morning. Highs in the 50s.

Tonight 17 Oct Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly clear. Patchy fog after midnight. Lows in the upper 30s to mid 40s. West wind to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marthas Bay Temperature Statistics

October Temperature

Whidbey Island Naval Air Station - Ault Field (6.2 miles)

  • Lowest 11 October, 2026

    37.9 °F

  • Average October

    52.3 °F

  • Highest 5 October, 2026

    64.9 °F

Climate (2021–2026)

Whidbey Island Naval Air Station - Ault Field (6.2 miles)

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  • Average Low 2021–2026

    44.3 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    55.9 °F
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