Overview

• Weekend highs will remain near seasonal norms under onshore breezes, with valley temperatures reaching the mid-90s on Saturday.
• A high-pressure ridge forecast to build from the Four Corners by mid-week is expected to lift interior valley temperatures above 100°F and as high as 110°F in spots like Fresno and Bakersfield.
• The National Weather Service has flagged August 8–10 for hazardous heat, warning of triple-digit highs and urging residents to limit outdoor exposure and stay hydrated.
• Enhanced sea breezes will moderate coastal and Bay Area heat even as inland regions contend with greater fire-weather danger and strain on the power grid.
• Long-range forecast models have repeatedly adjusted the timing of heat spikes but currently indicate a sustained warm-up next week, though peak intensity remains uncertain.