Rosario Head Weather Forecast

    • 51
    • 60

    Rain Showers Likely

    • 49
    • 57

    Rain Showers

    • 49
    • 55

    Partly Sunny

    • 52
    • 59

    Partly Sunny

    • 49
    • 57

    Chance Rain

    • 48
    • 54

    Chance Rain

Today 13 Sep Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy in the morning then becoming mostly sunny. Areas of fog in the morning. Highs in the upper 60s to mid 70s. Light wind.

Tonight 13 Sep Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy. A slight chance of Showers in the morning. Lows in the 50s. Light wind becoming southeast to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rosario Head Temperature Statistics

September Temperature

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

  • Lowest 10 September, 2025

    50 °F

  • Average September

    56.7 °F

  • Highest 9 September, 2025

    64.9 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    50.1 °F

  • Average High 2020–2025

    56.1 °F
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