San Mateo, CA

Updated 11/5/2026, 1:29:52 AM PST

WEATHER

55°F. Partly cloudy. Wind 2 mph WNW. 7-Day Forecast →

Low 51°High 73°

Current

AIR

AQI 17 (Good).

GoodHazardous

AQI 17

PUBLIC ALERTS

1 active alert

Coastal Flood Advisory

ROADS

US-101 • CA-92

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