Diamond Bar, CA — Severe Weather & Radar
No active severe-weather warnings for Diamond Bar, 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
General (non-severe) thunderstorms are possible in Diamond Bar, CAtoday, per the Storm Prediction Center's Day 1 outlook.
3-day forecast
Forecast via Open-Meteo.
When is severe weather most likely near Diamond Bar?
Severe thunderstorms and tornadoes are relatively rare in Diamond Bar.
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 Diamond Bar, CA
Diamond Bar, CA is home to an estimated 56,000 people. Atmostorm shows whether Diamond Bar 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 Diamond Bar:
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.