At 5 p.m., temperatures in Raleigh were nearly 20 degrees cooler than they were 24 hours ago. Overnight, temperatures will fall into the mid 30s.
That chilly weather, combined with clear skies and diminishing winds, could produce frost. It would be the first frost of the fall.
Sixty-nine counties, including most of central and eastern North Carolina, are under an advisory from 4 a.m. to 8 a.m. Saturday. Frost is most likely in rural areas, and sensitive plants should be covered to protect them from the frost.
The frost advisory covers Wake, Johnston, Durham, Orange, Granville and most counties surrounding the Triangle. It extends as far east as Onslow County.
Once sunlight dawns, temperatures will rebound, leading to a pleasant weekend.
Saturday will see "lots and lots of sunshine, with a few high clouds and temperatures getting up into the mid and upper 60s," Fishel said.
Sunday will be even milder, with more sunshine, high clouds and temperatures in the 70s.
Those will make for "perfection conditions for trick-or-treating on Sunday night," Fishel said.