Marthas Bay Weather Forecast

    • 48
    • 60

    Becoming Sunny

    • 50
    • 63

    Mostly Sunny

    • 54
    • 69

    Mostly Sunny

    • 57
    • 76

    Partly Sunny

    • 53
    • 66

    Chance Rain

    • 52
    • 64

    Slight Chance Rain

Today 30 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy in the morning then becoming mostly sunny. Highs in the upper 50s to mid 60s. West wind to 10 Mph. Gusts to 20 Mph in the morning.

Tonight 30 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly clear. Lows in the 40s. West wind 10 to 15 Mph becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marthas Bay Temperature Statistics

May Temperature

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

  • Lowest 21 May, 2026

    43 °F

  • Average May

    53.1 °F

  • Highest 3 May, 2026

    66.9 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    56.1 °F
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