A chill is set to sweep through the Siskiyou Mountains, Southern Oregon Cascades, and the Klamath Basin this weekend. According to the National Weather Service, a frost advisory takes effect Sunday at 8 p.m. and continues until Monday at 8 a.m.

A frost advisory from the National Weather Service will affect Lewis County early Tuesday morning. The advisory, issued at 12:54 a.m. on Monday, covers a six-hour window from 2 a.m. to 8 a.m. Residents are urged to remain cautious in the face of potential chilly conditions.