Rosario Head Weather Forecast

    • 48
    • 55

    Chance Rain Showers

    • 49
    • 58

    Partly Sunny

    • 50
    • 58

    Partly Sunny

    • 50
    • 59

    Mostly Cloudy

    • 50
    • 59

    Partly Sunny

    • 50
    • 59

    Mostly Cloudy

Today 16 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Mostly cloudy until late afternoon then becoming mostly sunny. Showers likely in the Morning, then a chance of Showers in the late morning and early afternoon. A slight chance of Thunderstorms in the afternoon. Rainfall Amounts a quarter to a half inch Possible, except higher Amounts possible in Thunderstorms. Highs in the mid 50s to lower 60s. South wind 10 to 15 Mph becoming west in the afternoon.

Tonight 16 May Lowlands of Western Skagit and Northwestern Snohomish Counties

Partly cloudy in the evening then becoming mostly cloudy. A slight chance of Showers. Lows in the 40s. West wind 10 to 20 Mph.

Graph Plots Open in Graphs
  • Temperature Forecast NOAA

  • Temperature Real-Time

Rosario Head Temperature Statistics

May Temperature

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

  • Lowest 12 May, 2026

    45 °F
  • Average May

    53.6 °F
  • Highest 3 May, 2026

    66.9 °F

Climate (2021–Present)

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

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2021–2026

    44.5 °F
  • Average 2021–2026

    50.1 °F
  • Average High 2021–2026

    56.1 °F
Get WillyWeather+ to remove ads