Marthas Bay Weather Forecast

    • 54
    • 68

    Decreasing Clouds

    • 55
    • 71

    Mostly Sunny

    • 58
    • 76

    Partly Sunny

    • 60
    • 80

    Partly Sunny

    • 59
    • 78

    Partly Sunny

    • 58
    • 77

    Mostly Sunny

Today 18 Jul Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly sunny. Highs in the upper 60s to mid 70s. South wind to 10 Mph becoming west in the afternoon.

Tonight 18 Jul Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly clear. Lows in the lower to mid 50s. West wind to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marthas Bay Temperature Statistics

July Temperature

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

  • Lowest 14 July, 2026

    46 °F

  • Average July

    56.2 °F

  • Highest 13 July, 2026

    66 °F

Climate (2021–2026)

Whidbey Island Naval Air Station - Ault Field (6.2 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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