Marine layer returns to San Francisco Friday, keeping the waterfront cool while inland highs reach the mid‑60s. Gusty WSW winds and a Small Craft Advisory make the waters rough this afternoon.

Berkeley Earth’s new Synthesis platform pairs observations and models to map city-level heat, rising cooling demand and emissions — with concrete implications for the Bay Area.

Sunny and breezy Thursday in San Jose with highs near 83°F; coastal waters under advisories and inland hills facing elevated fire risk.