Cascade Lake Weather Forecast

    • 48
    • 57

    Mostly Cloudy

    • 48
    • 59

    Partly Sunny

    • 48
    • 60

    Mostly Cloudy

    • 48
    • 57

    Chance Rain

    • 46
    • 56

    Slight Chance Rain

    • 46
    • 58

    Mostly Sunny

    • 46
    • 58

    Mostly Sunny

Today 18 Apr San Juan County

Mostly sunny. Highs in the mid 50s to lower 60s. Light wind.

Tonight 18 Apr San Juan County

Mostly cloudy in the evening then becoming partly cloudy. Lows in the 40s. Light wind.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Cascade Lake Temperature Statistics

April Temperature

Eastsound, Orcas Island Airport (4.3 miles)

  • Lowest 15 April, 2026

    35.6 °F

  • Average April

    48.6 °F

  • Highest 6 April, 2026

    64.4 °F

Climate (2021–Present)

Eastsound, Orcas Island Airport (4.3 miles)

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

  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    57.9 °F
Get WillyWeather+ to remove ads