Blind Island State Park Weather Forecast

    • 54
    • 73

    Partly Sunny

    • 53
    • 73

    Partly Sunny

    • 53
    • 74

    Mostly Sunny

    • 54
    • 77

    Partly Sunny

    • 54
    • 76

    Partly Sunny

    • 54
    • 77

    Mostly Cloudy

Today 11 Aug San Juan County

Sunny. Highs in the mid 60s to lower 70s. Light wind.

Tonight 11 Aug San Juan County

Mostly clear. Lows in the 50s. Light wind.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Blind Island State Park Temperature Statistics

August Temperature

Friday Harbor Airport (5.6 miles)

  • Lowest 3 August, 2026

    48.9 °F

  • Average August

    62 °F

  • Highest 4 August, 2026

    78.1 °F

Climate (2021–2026)

Friday Harbor Airport (5.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    59.7 °F
Get WillyWeather+ to remove ads