They actually address this in their AFD. Going to need an outperforming week to break the record. I love records but being right at the mark those cooler temps Wed-Fri may screw the record.
.CLIMATE...
Through 7/25, the average July temperature at Harrisburg is
holding at 81.8F or 5.9 degrees above normal - which would be
tied with 1999 for the warmest July if the month ended right
now. With above average temps forecast right through end of the
month, July 2020 could end as the warmest July (any month, for
that matter) on record. It will likely come down to the last one
or two days of the month, as MDT should have daily average temps
of more than 81.8 each day Sun, Mon and Tues. The forecast is
then for lower (can`t say cooler) temperatures for the rest of
the week.
So, if our current/official forecast as of 3 AM
Sunday is perfect (laughs), MDT will slide to 81.6 for the
month. This would still be a rock solid 2nd - besting the
current 2nd place of July 1955 (80.4) by >1 degree.
Williamsport is still on track for it`s 4th warmest month. The
average temperature at Williamsport through 7/25 is 78.1
degrees, which is 5.3 degrees above normal.