# HEADLINE
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FROST ADVISORY IN EFFECT FROM MIDNIGHT SATURDAY NIGHT TO 9 AM PDT SUNDAY
# DETAILS
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WHAT
Temperatures as low as 33 to 36 degrees will result in frost formation.
WHERE
In Oregon, Clackamas County Cascade Foothills, North Oregon Coast Range, North Oregon Coast Range Lowlands, Outer Southeast Portland Metro, Cascade Foothills of Marion and Linn Counties, Lane County Cascade Foothills, and Linn County Lowlands Counties. In Washington, North Clark County Lowlands and South Washington Cascade Foothills Counties.
WHEN
From midnight Saturday Night to 9 AM PDT Sunday.
IMPACTS
Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
ISSUED AT
Friday, October 9, 2026 at 10:37 AM PDT
ISSUED BY
National Weather Service Portland OR
HEADER
URGENT - WEATHER MESSAGE
# PRECAUTIONARY/PREPAREDNESS ACTIONS
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Take steps now to protect tender outdoor plants from the cold. Consider temporarily moving outdoor potted plants indoors if they are sensitive to cold temperatures.
Consider temporarily covering sensitive plants with a lightweight cotton fabric (i.e., bedsheets, thin blankets), as this will help retain heat and provide frost protection for your plants.
# AREAS AFFECTED
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Lane County Cascade Foothills, Cascade Foothills of Marion and Linn Counties, Clackamas County Cascade Foothills, Linn County Lowlands, North Clark County Lowlands, North Oregon Coast Range, North Oregon Coast Range Lowlands, Outer Southeast Portland Metro, South Washington Cascade Foothills
Including the cities of Jewell, Necanicum, Boring, Sunset Summit, Lebanon, Oakridge, Estacada, Harrisburg, Brush Prairie, Wilson River Summit, Vida, Hockinson, Silver Falls, Lake Merwin, Vernonia, Detroit, Brownsville, Welches, Rhododendron, Grand Ronde Indian Reservation, Ridgefield, Amboy, Knappa, Glenwood, Brightwood, Albany, Mill City, Sandy, La Center, McKenzie Bridge, Cherryville, Yacolt, Toutle, and Battle Ground
