← All Cities

San Mateo, CA

Updated 10/16/2026, 1:39:54 AM PDT
📤 Share San Mateo Conditions
WEATHER
63°F. Clear. Wind 0 mph. 7-Day Forecast →
AIR
AQI 42 (Good).
GoodHazardous
AQI 42
PUBLIC ALERTS
No active federal alerts reported.
ROADS
☀️ Free Morning Snapshot
One email each morning with today's essential local conditions.
No spam. Unsubscribe anytime.
Local Partners
Sources: NWS • AirNow • NOAA Aviation Weather • Open-Meteo • Caltrans