San Mateo County, CA — Severe Weather & Radar
No active severe-weather warnings for San Mateo County, CA right now. Live radar is below — set up alerts to get warned the moment one is issued.
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Severe-weather outlook
No severe-weather risk is outlooked for San Mateo County, CA today.
3-day forecast
Forecast via Open-Meteo.
When is severe weather most likely near San Mateo?
Severe thunderstorms and tornadoes are relatively rare in San Mateo County.
The larger weather threats are winter storm systems bringing damaging winds, heavy rain, and flooding, mainly from late fall through spring.
Based on long-term NOAA / NWS Storm Prediction Center climatology.
In San Mateo County, CA
San Mateo County, CA has an estimated 780,000 residents, plus 4 hospitals, 16 nursing homes, 176 schools, 4 mobile-home parks, 14 dialysis centers that could be in a storm's path. Atmostorm shows which of them fall inside an active warning polygon.
Emergency-management view: who & what is in the warned path →
Nearby areas
Live radar and active alerts for places near San Mateo:
Not an official source — always confirm with the National Weather Service at weather.gov. Data aggregated from NWS/SPC. Facility and population figures are decision-support estimates.