An Arctic high pressure system has brought clear skies and light winds to Northeastern Ontario.
As a result, temperatures have again dropped to near or several degrees below freezing in many areas.
Temperatures will rebound this morning after sunrise.
Take preventative measures to protect frost-sensitive plants and trees.
Frost warnings are issued during the growing season when widespread frost formation is expected over an extensive area.
Surface temperatures are expected to fall near freezing in the overnight period.
