Within one degree of patchy frost tomorrow night.

Tomorrow night the low temperature will be 37 degrees. 36 degrees means that patchy frost can happen. 34 degrees means frost is likely. Here's what the National Weather Service says:

.Short Term...(This evening through Friday night)
Issued at 248 PM EDT Thu May 6 2021

For latest thoughts on the ongoing showers and storms, see the
latest mesoscale update above.

Going into the late evening and overnight hours, showers will
gradually come to an end as the front exits the area by midnight.
The moist air aloft associated with the frontal system will also
quickly exit the area allowing for clearing across the southern
portions of the forecast area with some clouds persisting across the
north where some mid level moisture transport should allow for
continued cloud cover.  Lows tonight look to drop into the upper 30s
which should be warm enough to prevent any frost except in extremely
favored cool and sheltered locations.

During the daytime hours tomorrow, a series of weak vort maxes will
continue to circulate around the more broad trough which should lead
to some isolated rain showers.  Dry adiabatic lapse rates are
expected up to around 775mb which should also allow for the mixing
down of winds associated with a weak LLJ.  Not expecting anything
much more than 20-25 mph with occasional gusts to 30 mph.  With
these steep lapse rates and the relatively steep lapse rates above a
weak capping inversion, a rumble of thunder or two can`t be ruled
out tomorrow afternoon with graupel possible across the northeastern
counties where the vort max is expected to be strongest along with
the coolest temperatures aloft.

With the dry surface air and clearing skies Friday night,  lows may
fall locally into the mid 30s and possibly even lower in localized
areas.  Frost looks probable across the northeastern counties which
are expected to remain the coldest. Will hold off on any headlines
to avoid confusion that it could possibly be tonight, along with
waiting until confidence on where the more widespread frost can
increase.

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