Summit Lake Weather Forecast

    • 47
    • 59

    Mostly Cloudy

    • 45
    • 54

    Chance Rain

    • 45
    • 52

    Chance Rain

    • 43
    • 54

    Mostly Sunny

    • 45
    • 56

    Mostly Sunny

    • 45
    • 57

    Partly Sunny

Today 20 Apr San Juan County

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

Tonight 20 Apr San Juan County

Mostly cloudy in the evening then becoming partly cloudy. Lows in the mid 40s to lower 50s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summit Lake Temperature Statistics

April Temperature

Eastsound, Orcas Island Airport (3.7 miles)

  • Lowest 15 April, 2026

    35.6 °F

  • Average April

    48.5 °F

  • Highest 6 April, 2026

    64.4 °F

Climate (2021–Present)

Eastsound, Orcas Island Airport (3.7 miles)

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  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    57.9 °F
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