San Juan Island - Grandmas Cove Weather Forecast

    • 46
    • 59

    Rain Showers Likely

    • 45
    • 57

    Rain Likely

    • 41
    • 55

    Rain Showers

    • 42
    • 57

    Chance Rain

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    • 57

    Chance Rain

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    Chance Rain

Today 26 Apr San Juan County

Mostly cloudy. Rain at Times in the Morning, then rain likely late in the morning. A slight chance of rain early in the afternoon. Rainfall Amounts less than a tenth of an inch likely. Highs in the mid 50s to lower 60s. Southeast wind to 10 Mph becoming south in the afternoon.

Tonight 26 Apr San Juan County

Mostly cloudy. A slight chance of rain in the morning. Lows in the 40s. Light wind becoming south to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Juan Island - Grandmas Cove Temperature Statistics

April Temperature

Friday Harbor Airport (3.7 miles)

  • Lowest 17 April, 2024

    35.7 °F

  • Average April

    50.7 °F

  • Highest 20 April, 2024

    71.7 °F

Climate (2019–Present)

Friday Harbor Airport (3.7 miles)

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  • Average Low 2019–2024

    43.9 °F

  • Average 2019–2024

    50.9 °F

  • Average High 2019–2024

    58.5 °F
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