Lopez Island - McArdle Bay Weather Forecast

    • 49
    • 59

    Decreasing Clouds

    • 50
    • 63

    Mostly Cloudy

    • 49
    • 64

    Partly Sunny

    • 50
    • 64

    Partly Sunny

    • 51
    • 67

    Mostly Cloudy

    • 51
    • 68

    Partly Sunny

Today 8 May San Juan County

Mostly cloudy until late afternoon then becoming mostly sunny. Highs in the upper 50s to mid 60s. Southwest wind 10 to 15 Mph becoming south 10 to 20 Mph in the afternoon.

Tonight 8 May San Juan County

Partly cloudy. Lows in the mid 40s to lower 50s. Southwest wind to 10 Mph in the evening becoming light.

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  • Temperature Real-Time

Lopez Island - McArdle Bay Temperature Statistics

May Temperature

Whidbey Island Naval Air Station - Ault Field (8.7 miles)

  • Lowest 1 May, 2026

    46.9 °F

  • Average May

    53.9 °F

  • Highest 3 May, 2026

    66.9 °F

Climate (2021–Present)

Whidbey Island Naval Air Station - Ault Field (8.7 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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