Johns Island Weather Forecast

    • 55
    • 62

    Mostly Sunny

    • 55
    • 69

    Mostly Sunny

    • 55
    • 67

    Mostly Sunny

    • 55
    • 64

    Mostly Sunny

    • 54
    • 65

    Mostly Sunny

    • 55
    • 63

    Rain Likely

    • 53
    • 63

    Rain Likely

Today 15 Sep San Juan County

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

Tonight 15 Sep San Juan County

Mostly clear. Lows in the 50s. North wind to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Johns Island Temperature Statistics

September Temperature

Eastsound, Orcas Island Airport (11.2 miles)

  • Lowest 11 September, 2025

    51.8 °F

  • Average September

    62 °F

  • Highest 2 September, 2025

    73.4 °F

Climate (2020–Present)

Eastsound, Orcas Island Airport (11.2 miles)

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

  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    51.8 °F

  • Average High 2020–2025

    57.6 °F
Get WillyWeather+ to remove ads