Barometric Pressure in Mercer Island, United States 
Pressure
0000 hPa
Temperature
00.0 ℃
Humidity
00.0%
Wind
00.0 m/s
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Forecast
Hourly Pressure Trends
Track the barometric pressure in Mercer Island hour by hour and stay informed about how it will change over the next 6 hours.
Mercer Island has mild winters and cool summers. Its location near Lake Washington and Puget Sound affects air pressure, making it more stable. The island's hilly geography blocks winds, reducing pressure changes. In winter, low pressure brings rain, while high pressure in summer brings sunshine. Mercer Island has a mild oceanic climate, meaning pressure changes are small, leading to gentle weather.