Barometric Pressure in Acton, United States 
1027.8 hPa
8.3 ℃
91%
2.06 m/s
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The average pressure in Acton, Massachusetts, United States today is , which is higher than normal. Pressure is trending falling.
Weather prediction: Rain at times, worse later
Rapid Pressure Changes
Rapid pressure changes detected in Acton, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Fall : ()
The daily total fluctuation in pressure in Acton is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Acton hour by hour across the next 6 hourly readings.
Acton, Massachusetts has changing air pressure due to its location near the Atlantic Ocean and the Appalachian Mountains. This mix of ocean and mountain air creates varying pressure patterns.
Acton's geography, with its hills and valleys, can trap or funnel air, affecting local air pressure. This can make the weather feel different from surrounding areas.
In winter, cold air from Canada brings low pressure, making the air feel colder and causing snow. In summer, warm air from the Gulf of Mexico brings high pressure, making the air feel hotter and more humid.
Acton has a humid continental climate, with big temperature differences between summer and winter. This climate type brings changing air pressure patterns, with more extreme weather events like nor'easters and heatwaves.