Cypress Island - Secret Harbor Weather Forecast

    • 50
    • 62

    Rain

    • 48
    • 61

    Rain

    • 47
    • 61

    Partly Sunny

    • 49
    • 61

    Partly Sunny

    • 50
    • 58

    Chance Rain

    • 50
    • 59

    Chance Rain

Today 24 Sep Lowlands of Western Skagit and Northwestern Snohomish Counties

Cloudy. Patchy fog in the morning. A slight chance of rain in the afternoon. Highs in the upper 50s to mid 60s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 24 Sep Lowlands of Western Skagit and Northwestern Snohomish Counties

A chance of rain in the Evening, then rain late in the evening. Rain likely after midnight. Rainfall Amounts a quarter to a half inch possible. Lows in the upper 40s to mid 50s. Northwest wind to 10 Mph becoming southeast after midnight.

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Cypress Island - Secret Harbor Temperature Statistics

September Temperature

Burlington/Mount Vernon, Skagit Regional Airport (13.7 miles)

  • Lowest 16 September, 2026

    46.4 °F

  • Average September

    59.3 °F

  • Highest 9 September, 2026

    75.2 °F

Climate (2021–2026)

Burlington/Mount Vernon, Skagit Regional Airport (13.7 miles)

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  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    59.3 °F
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