Barometric Pressure Forecast for Somerville, Massachusetts
Barometric pressure forecast for Somerville, Massachusetts — a dense city on the Mystic River just northwest of Boston, in the path of every nor'easter that spins up off the New England coast. See current barometric pressure and what it means for weather-sensitive people.
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Pressure and weather in Somerville
Somerville occupies a few square miles of hills and old streetcar neighbourhoods between Cambridge and Medford, set back from Boston Harbor along the lower Mystic River. It is one of the most densely built cities in the country, and its weather is coastal New England weather with a slight inland shading — marginally warmer on summer afternoons than the waterfront, marginally colder on clear winter nights. Barometric pressure here is driven by the collision zone off the New England coast, where cold continental air meets the relatively warm Atlantic and the Gulf Stream. Nor'easters are the defining event: lows tracking up the seaboard can deepen explosively just offshore, and the resulting fall in current barometric pressure is both large and fast, sometimes among the steepest recorded on land in North America. Behind them, arctic high pressure builds in and pushes the barometer back up sharply. Spring adds the backdoor cold front, sliding in from the northeast off the Gulf of Maine to cut a mild afternoon short within minutes. Summer is comparatively quiet under the Bermuda high, with humid stretches, a sea breeze off Massachusetts Bay that reaches a few miles inland, and occasional squall lines. For weather-sensitive residents, a barometric pressure forecast for Somerville is most important from late autumn through early spring, when weather pressure can move a long way in under a day.
What this means for you
Can barometric pressure cause headaches? In greater Boston the rate of change is the issue, because a rapidly deepening coastal low can move barometric pressure further in twelve hours than a whole quiet week does. Pairing this barometric pressure forecast with a migraine tracker app like Pressure Pal lets you see how fast pressure change today is happening, not just where it lands. Track barometric pressure today and get alerts before the next system arrives.