Allyn Weather Forecast

    • 52
    • 69

    Partly Sunny

    • 52
    • 71

    Slight Chance Thunderstorms

    • 54
    • 72

    Partly Sunny

    • 53
    • 70

    Mostly Cloudy

    • 54
    • 72

    Partly Sunny

    • 55
    • 78

    Mostly Sunny

    • 54
    • 75

    Slight Chance Rain

Today 4 Sep Olympia and Southern Puget Sound

Partly sunny. Highs in the upper 60s to mid 70s. Light wind.

Tonight 4 Sep Olympia and Southern Puget Sound

Partly cloudy. Lows near 50. Light wind.

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Allyn Temperature Statistics

September Temperature

Bremerton, Bremerton National Airport (8.7 miles)

  • Lowest 1 September, 2026

    50 °F

  • Average September

    59.2 °F

  • Highest 1 September, 2026

    69.1 °F

Climate (2021–2026)

Bremerton, Bremerton National Airport (8.7 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    51.1 °F

  • Average High 2021–2026

    60 °F
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