Mill Bay Weather Forecast

    • 36
    • 61

    Becoming Sunny

    • 37
    • 58

    Mostly Sunny

    • 44
    • 64

    Partly Sunny

    • 41
    • 67

    Slight Chance Rain Showers

    • 41
    • 64

    Partly Sunny

    • 37
    • 60

    Mostly Sunny

Today 5 Oct Northern Washington

Mostly sunny. Highs in the lower 60s. Southwest Winds 5 to 10 Mph, becoming west 10 to 15 Mph in the afternoon.

Tonight 5 Oct Northern Washington

Partly cloudy in the Evening, then clearing. Cooler with Lows in the upper 30s. Northwest Winds 5 to 10 Mph.

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Mill Bay Temperature Statistics

October Temperature

Middlebury State Airport (21.7 miles)

  • Lowest 2 October, 2026

    51.3 °F

  • Average October

    63.2 °F

  • Highest 2 October, 2026

    68.5 °F

Climate (2021–2026)

Middlebury State Airport (21.7 miles)

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  • Average Low 2021–2026

    36.4 °F

  • Average 2021–2026

    45.6 °F

  • Average High 2021–2026

    54.6 °F
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