San Marcos, CA — Severe Weather & Radar
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Active warnings
Severe-weather outlook
No severe-weather risk is outlooked for San Marcos, CA today.
3-day forecast
Forecast: NOAA National Blend of Models.
When is severe weather most likely near San Marcos?
Severe thunderstorms and tornadoes are relatively rare in San Marcos.
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 Marcos, CA
San Marcos, CA is home to an estimated 89,000 people. Atmostorm shows whether San Marcos is inside an active NWS warning polygon right now — and warns you the moment that changes.
Nearby areas
Live radar and active alerts for places near San Marcos:
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.