Barometric Pressure in Port Townsend, United States 
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The pressure in Port Townsend, Washington, United States is predicted to drop over the next few hours, with an average pressure of 1018.8 hPa today, which is considered normal.
Weather prediction: Expect wet, unsettled weather and a strong breeze
The daily total fluctuation in pressure in Port Townsend is 3.8 hPa, with a low of 1016.3 hPa and a high of 1020.1 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Port Townsend hour by hour and stay informed about how it will change over the next 6 hours.
Port Townsend's weather is influenced by its location near the Olympic Mountains and the Puget Sound. This creates a "rain shadow" effect, making air pressure higher east of the Olympics.
The Sound's warm waters and the Pacific Ocean's moisture also impact air pressure, creating a mix of high and low pressure systems. This leads to frequent changes in weather.
In winter, low pressure systems from the Pacific bring rain and wind. High pressure systems from the east bring dry and cold air. Spring and fall have more stable air pressure, with a mix of sun and rain.
Summer has high pressure, leading to dry and sunny weather. Port Townsend has a mild oceanic climate, with air pressure changes driving its rainy and windy winters and mild summers.