Frost Advisory for Southeastern Interior Humboldt, Northwestern Interior Mendocino, Northeastern Interior Mendocino and Northern Lake, California

Ended at 7:31 AM PST, Monday, November 2, 2026.

Issued by the National Weather Service in Eureka at 3:36 PM PST, Sunday, November 1, 2026.

California radars

The Weather Service's text

WHAT...Temperatures as low as 34 will result in frost formation.

WHERE...Northern Mendocino Interior, Southeastern Interior Humboldt, and Northern Lake.

WHEN...From midnight tonight to 8 AM PST Monday.

IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.

Take steps now to protect tender plants from the cold.