Barometric Pressure in Watertown, United States 
1013 hPa
15.0 ℃
50%
3.0 m/s
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Forecast
Hourly Pressure Trends
Track the barometric pressure in Watertown hour by hour across the next 6 hourly readings.
Watertown, Massachusetts, has changing air pressure due to its location near the Atlantic Ocean. Cold air from Canada and warm air from the ocean clash, making air pressure rise and fall.
The town's geography, with the Charles River running through it, helps create different air pressure zones. The river's valley can trap cold air, making it colder than surrounding areas.
In winter, cold air brings low pressure, causing snowfall. In summer, warm air brings high pressure, making it hotter. Spring and fall have mixed pressure, with mild temperatures and rain.
Watertown has a humid continental climate, which means big temperature differences between winter and summer. This climate type brings changing air pressure patterns, affecting the weather.