Lopez Island - Watmough Bay Weather Forecast

    • 54
    • 68

    Decreasing Clouds

    • 53
    • 67

    Mostly Cloudy

    • 52
    • 63

    Partly Sunny

    • 53
    • 64

    Mostly Sunny

    • 54
    • 64

    Mostly Sunny

    • 53
    • 65

    Partly Sunny

    • 52
    • 63

    Mostly Sunny

Today 27 Jul San Juan County

Cloudy in the morning then becoming mostly sunny. Highs in the upper 60s to mid 70s. Light wind.

Tonight 27 Jul San Juan County

Partly cloudy in the evening then becoming mostly cloudy. 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 14 July, 2026

    46 °F

  • Average July

    57.3 °F

  • Highest 25 July, 2026

    73.9 °F

Climate (2021–2026)

Whidbey Island Naval Air Station - Ault Field (8.1 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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