Mountain Lake Weather Forecast

    • 45
    • 53

    Rain Likely

    • 46
    • 48

    Rain

    • 47
    • 54

    Rain Showers

    • 47
    • 54

    Rain Likely

    • 46
    • 53

    Rain Showers Likely

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    • 53

    Rain

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    Rain

Today 17 Oct San Juan County

Mostly sunny. A slight chance of rain in the morning. Highs in the mid 50s to lower 60s. West wind 10 to 15 Mph.

Tonight 17 Oct San Juan County

Mostly clear in the evening then becoming mostly cloudy. Lows in the 40s. Light wind becoming south to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mountain Lake Temperature Statistics

October Temperature

Eastsound, Orcas Island Airport (5 miles)

  • Lowest 15 October, 2025

    39.2 °F

  • Average October

    52.9 °F

  • Highest 1 October, 2025

    68 °F

Climate (2020–Present)

Eastsound, Orcas Island Airport (5 miles)

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  • Average Low 2020–2025

    46 °F

  • Average 2020–2025

    51.7 °F

  • Average High 2020–2025

    57.6 °F
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