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.
Allyn Temperature Statistics
September Temperature
Bremerton, Bremerton National Airport (8.7 miles)
Lowest 10 September, 2025
48.9 °FAverage September
62.9 °FHighest 3 September, 2025
84.9 °F
Climate (2020–Present)
Bremerton, Bremerton National Airport (8.7 miles)
Average Low 2020–2025
42.1 °FAverage 2020–2025
50.8 °FAverage High 2020–2025
59.9 °F