The advisory was expected to last until 9 a.m.
Sensitive outdoor plants should be brought indoors or covered to keep them from being killed by frost on these mornings.
Temperatures were in the low to middle 30s Thursday morning before beginning to warm up after sunrise. Highs will be in the low 60s, with clouds increasing in the afternoon.
Friday will be mainly cloudy with some spotty light rain developing. Highs will be around 60 degrees.
The rain should end by Saturday morning, followed by sunny skies and warm temperatures.
Sunday will be sunny and slightly cooler.