... Patchy frost possible towards dawn Saturday morning...
A dry... cold Canadian air mass in place across the region combined
with clear skies and light winds will drive temperatures down into
the mid 30s in many of our valley areas overnight. As a result
patchy frost could develop towards dawn... mainly in our more
sheltered locations. It would be a good idea to protect any plants
which are especially sensitive to frost if you reside in the normally
colder valley locations.