Dew point values have been stuck over 70F throughout the week as a persistent southerly wind has been transporting warm, steamy air northward up the East Coast.
With temperatures climbing into the 80s on multiple occasions, it has felt quite tropical around the area for the better part of the last week.
While the overall weather pattern is not going anywhere fast (next week looks equally steamy) we will, thankfully, get a temporary break in the humidity over the next 24 to 48 hours.
A cold front sliding eastward through the Northeast will cross over and through the Cape later today and tonight, gradually losing its identity as it does so. Behind this front, a bubble of less humid air is attempting to shift into the region. Dew point values to our west are in the 50s and 60s – far more comfortable than the middle 70s values we are experiencing Saturday morning.
With the surface boundary slowly falling apart and a strong ridge of high pressure remaining firmly entrenched to our east, it will be tough to truly scour out the muggy air over our neck of the woods. That said, we should manage just enough of a wind shift to see some of the drier air to our west make a run toward the coast tomorrow. So although dew points may never fall much below the 60-65F range…it will certainly feel a bit less humid for a time Sunday and Monday (albeit quite warm)…before southerly flow resumes for the remainder of the week.