Rosario Head Weather Forecast

    • 41
    • 49

    Mostly Cloudy

    • 38
    • 44

    Rain Likely

    • 36
    • 46

    Partly Sunny

    • 43
    • 48

    Rain

    • 42
    • 49

    Rain

    • 43
    • 51

    Chance Rain

Today 28 Mar Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy. A slight chance of rain in the afternoon. Highs in the upper 40s to mid 50s. Light wind becoming west to 10 Mph in the afternoon.

Tonight 28 Mar Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy. A slight chance of rain in the evening. A slight chance of rain after Midnight, then a chance of rain in the morning. Lows in the mid 30s to lower 40s. West wind to 10 Mph.

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Rosario Head Temperature Statistics

March Temperature

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

  • Lowest 1 March, 2026

    32 °F
  • Average March

    45.3 °F
  • Highest 18 March, 2026

    57.9 °F

Climate (2021–Present)

Whidbey Island Naval Air Station - Ault Field (3.7 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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