Lopez Island - Barnacle Rock Weather Forecast

    • 47
    • 55

    Rain

    • 46
    • 52

    Rain

    • 47
    • 52

    Rain Likely

    • 48
    • 54

    Mostly Cloudy

    • 45
    • 55

    Mostly Cloudy

    • 44
    • 55

    Partly Sunny

Today 31 Jan San Juan County

Cloudy. Rain at Times in the morning. A chance of rain in the afternoon. Rainfall Amounts a tenth to a quarter of an inch possible. Highs in the lower to mid 50s. East wind 10 to 15 Mph becoming southeast in the afternoon.

Tonight 31 Jan San Juan County

Cloudy. A slight chance of rain in the Evening, then a chance of rain in the late evening and early morning. Rain likely in the morning. Rainfall Amounts less than a tenth of an inch likely. Lows in the 40s. Southeast wind 10 to 15 Mph.

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Lopez Island - Barnacle Rock Temperature Statistics

January Temperature

Friday Harbor Airport (9.9 miles)

  • Lowest 25 January, 2026

    27 °F

  • Average January

    43 °F

  • Highest 13 January, 2026

    53.1 °F

Climate (2021–Present)

Friday Harbor Airport (9.9 miles)

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  • Average Low 2021–2026

    44.4 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    59.6 °F
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