Allyn Weather Forecast

    • 53
    • 72

    Becoming Sunny

    • 52
    • 69

    Mostly Sunny

    • 53
    • 71

    Partly Sunny

    • 56
    • 65

    Chance Rain

    • 54
    • 66

    Chance Rain

    • 53
    • 66

    Chance Rain

Today 17 Sep Olympia and Southern Puget Sound

Sunny. Highs in the 70s. Southwest wind to 10 Mph becoming west around 10 Mph in the afternoon.

Tonight 17 Sep Olympia and Southern Puget Sound

Partly cloudy. Lows in the lower to mid 50s. Northwest wind to 10 Mph in the evening becoming light.

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Allyn Temperature Statistics

September Temperature

Bremerton, Bremerton National Airport (8.7 miles)

  • Lowest 10 September, 2025

    48.9 °F
  • Average September

    62.9 °F
  • Highest 3 September, 2025

    84.9 °F

Climate (2020–Present)

Bremerton, Bremerton National Airport (8.7 miles)

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  • Average Low 2020–2025

    42.1 °F
  • Average 2020–2025

    50.8 °F
  • Average High 2020–2025

    59.9 °F
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