San Juan Island - Grandmas Cove Weather Forecast

    • 33
    • 42

    Snow Showers

    • 29
    • 41

    Snow Showers

    • 26
    • 36

    Snow Showers

    • 24
    • 34

    Chance Snow Showers

    • 26
    • 34

    Slight Chance Snow Showers

    • 28
    • 37

    Chance Snow Showers

    • 30
    • 39

    Chance Snow Showers

Today 1 Feb San Juan County

Mostly cloudy. Rain and snow Showers in the Morning, then rain and snow Showers likely in the afternoon. Snow level near 500 feet. Snow accumulation up to 1 inch. Highs in the upper 30s to mid 40s. Southwest wind 10 to 20 Mph becoming south in the afternoon.

Tonight 1 Feb San Juan County

Partly sunny then becoming partly cloudy in the evening then becoming mostly cloudy. A slight chance of rain and snow Showers in the evening. Rain Showers and snow Showers likely after midnight. Snow level near 400 feet. Snow accumulation up to 1 inch. Lows in the upper 20s to mid 30s. Southwest wind 10 to 20 Mph becoming south around 10 Mph after midnight.

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San Juan Island - Grandmas Cove Temperature Statistics

February Temperature

Friday Harbor Airport (3.7 miles)

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Climate (2020–Present)

Friday Harbor Airport (3.7 miles)

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  • Average Low 2020–2025

    44.2 °F

  • Average 2020–2025

    51.4 °F

  • Average High 2020–2025

    59.1 °F
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