Overview

• Northern California is experiencing a brief cooldown as returning Delta and onshore breezes push valley highs into the mid-to-upper 80s this weekend.
• Gusts of 20 to 30+ mph are expected across the Valley and Bay Area passes, prompting marine and gale warnings offshore.
• A slight chance of isolated showers or sprinkles remains for parts of the northern Sierra, though most areas will stay dry.
• There are currently no heat advisories in effect statewide, but drier fuels and gusty winds raise localized fire-weather concerns.
• Forecast models show a strong high-pressure ridge rebuilding by late next week, leading to a rapid warm-up and triple-digit temperatures returning Thursday and Friday.