Roche Harbor Lake Weather Forecast

    • 46
    • 57

    Rain Likely

    • 41
    • 55

    Rain Likely

    • 39
    • 50

    Chance Rain

    • 39
    • 51

    Chance Rain

    • 38
    • 49

    Chance Rain

    • 37
    • 48

    Partly Sunny

Today 14 Nov San Juan County

Breezy. Mostly sunny. Highs in the mid to upper 50s. Southeast wind 15 to 25 Mph with Gusts to 35 Mph.

Tonight 14 Nov San Juan County

Windy. Mostly cloudy. A chance of rain in the Evening, then rain likely after midnight. Rainfall Amounts less than a tenth of an inch likely. Lows in the mid 40s to lower 50s. Southeast wind 15 to 30 Mph with Gusts to 45 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Roche Harbor Lake Temperature Statistics

November Temperature

Friday Harbor Airport (6.2 miles)

  • Lowest 2 November, 2026

    37.9 °F

  • Average November

    50.1 °F

  • Highest 7 November, 2026

    60.1 °F

Climate (2021–2026)

Friday Harbor Airport (6.2 miles)

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  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    59.7 °F
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