Keystone Weather Forecast

    • 46
    • 63

    Mostly Sunny

    • 46
    • 64

    Rain Showers Likely

    • 44
    • 55

    Chance Rain Showers

    • 44
    • 58

    Mostly Sunny

    • 47
    • 61

    Partly Sunny

    • 47
    • 63

    Partly Sunny

Today 1 May Island County

Sunny. Highs in the 60s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 1 May Island County

Mostly clear. Lows in the mid 40s to lower 50s. Northwest wind around 10 Mph becoming west after midnight.

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Keystone Temperature Statistics

May Temperature

Whidbey Island Naval Air Station - Ault Field (13 miles)

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  • Average May

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Climate (2020–Present)

Whidbey Island Naval Air Station - Ault Field (13 miles)

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  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    50.3 °F

  • Average High 2020–2025

    56.3 °F
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