Cactus Islands Weather Forecast

    • 41
    • 48

    Mostly Cloudy

    • 41
    • 47

    Mostly Cloudy

    • 39
    • 46

    Chance Rain

    • 39
    • 46

    Partly Sunny

    • 42
    • 47

    Rain Likely

    • 43
    • 49

    Rain Likely

Today 27 Mar San Juan County

Mostly cloudy. Highs near 50. Light wind.

Tonight 27 Mar San Juan County

Mostly cloudy. Lows near 40. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cactus Islands Temperature Statistics

March Temperature

Friday Harbor Airport (9.9 miles)

  • Lowest 10 March, 2026

    30 °F

  • Average March

    44.8 °F

  • Highest 20 March, 2026

    59 °F

Climate (2021–Present)

Friday Harbor Airport (9.9 miles)

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  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    59.7 °F
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