Lopez Island - Watmough Bay Weather Forecast

    • 52
    • 62

    Decreasing Clouds

    • 53
    • 65

    Partly Sunny

    • 54
    • 65

    Partly Sunny

    • 54
    • 66

    Mostly Sunny

    • 53
    • 65

    Partly Sunny

    • 53
    • 63

    Partly Sunny

Today 20 Jul San Juan County

Mostly sunny. Highs in the mid 60s to lower 70s. Light wind.

Tonight 20 Jul San Juan County

Mostly clear. Lows in the 50s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lopez Island - Watmough Bay Temperature Statistics

July Temperature

Whidbey Island Naval Air Station - Ault Field (8.1 miles)

  • Lowest 4 July, 2025

    48 °F

  • Average July

    57.3 °F

  • Highest 16 July, 2025

    77 °F

Climate (2020–Present)

Whidbey Island Naval Air Station - Ault Field (8.1 miles)

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  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    50.2 °F

  • Average High 2020–2025

    56.2 °F
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