Portland, OR – Residents across northwest Oregon and southwest Washington are being urged to protect sensitive plants as widespread frost and possible freezing temperatures threaten communities Friday morning, Oct. 23, and Saturday morning, Oct. 24, 2026. Temperatures could fall as low as 31 degrees in portions of the Willamette Valley and Oregon Coast Range lowlands.
According to the National Weather Service (NWS) Portland office, multiple Frost Advisories and Freeze Watches were issued Wednesday evening, Oct. 21, covering communities from the Portland-Vancouver metropolitan area south toward Salem, Corvallis and Eugene.
First Frost Advisory Begins Thursday Night, Oct. 22…