We may see a brief but minimal break:
From RAH:
".....................
Confidence is increasing that we`ll see the rare summertime
synoptic frontal passage Mon night or early Tue, as a relatively
cooler high with lower dewpoints in the 60s builds in from the Great
Lakes and St Lawrence Valley, while aloft, the longwave
trough halts
briefly off the East Coast. This surface high is expected to slide E
and off the Northeast and Mid Atlantic coast by Thu while still
extending down through
NC in an almost
CAD-like configuration,
including lowering surface pressures along the Southeast coast as an
inverted
trough develops. Highs should be mostly in the 80s Tue/Wed,
with relatively low
humidity for this time of year. Once the high
pushes further out over the open NW Atlantic by Thu/Fri and
modifies, the heat is
likely to return as the deep mid level
anticyclone builds from the central Miss Valley eastward across
NC/VA. ....................."
6z GFS dew points for midday Tuesday (0z was a little cooler/dryer into central NC):
Sad to be looking forward to low 60s dew points. But you take any relief you can get...