Rosario Head Weather Forecast

    • 47
    • 57

    Increasing Clouds

    • 46
    • 54

    Mostly Cloudy

    • 43
    • 53

    Partly Sunny

    • 45
    • 50

    Chance Rain

    • 45
    • 54

    Mostly Cloudy

    • 44
    • 53

    Partly Sunny

Today 21 Oct Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the upper 50s to mid 60s. East wind to 10 Mph in the morning becoming light.

Tonight 21 Oct Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy in the evening then becoming partly cloudy. Lows in the 40s. Northwest wind to 10 Mph becoming south after midnight.

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Rosario Head Temperature Statistics

October Temperature

Whidbey Island Naval Air Station - Ault Field (3.7 miles)

  • Lowest 11 October, 2026

    37.9 °F

  • Average October

    51.6 °F

  • Highest 5 October, 2026

    64.9 °F

Climate (2021–2026)

Whidbey Island Naval Air Station - Ault Field (3.7 miles)

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  • Average Low 2021–2026

    44.3 °F

  • Average 2021–2026

    49.9 °F

  • Average High 2021–2026

    55.9 °F
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