Eureka, Calif. – Dangerous heat will continue to grip much of the West Coast through Tuesday, with triple-digit highs and little overnight cooling in many areas. The National Weather Service has extended and maintained heat advisories from Southern California to Washington, warning of a major risk of heat-related illness for anyone without effective cooling.
According to the National Weather Service in Eureka, parts of Northern Humboldt and Trinity counties could reach 110 to 115 degrees this afternoon before temperatures gradually ease late tonight. In Southern California, the Santa Ynez Mountains and foothill valleys will see mid-90s to 105, with overnight lows in the 70s and 80s, while strong winds up to 45 mph could complicate fire danger.
Washington’s inland valleys, including Spokane, Wenatchee, and Moses Lake, are forecast to reach the upper 90s to low 100s through Tuesday evening. Western Washington, including Seattle and Everett, will remain in the upper 80s to mid-90s with warm nights in the 60s.
Officials urge residents to drink water frequently, limit strenuous activity to early morning or evening, and check on vulnerable neighbors. Cooling centers remain open in many cities. Warnings remain in effect through Tuesday night, with relief expected midweek in some regions.