No upcoming precipitation for the next hour.
Last update: 18:00, 9 Jul 2026
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Hacienda Heights, California experiences atmospheric rivers November–March. The Hacienda Heights rain radar delivers real-time NEXRAD data from KVTX (Los Angeles) / KMUX (Mt Umunhum/San Jose) / KBBX (Sacramento), updated every 4–6 minutes at up to 250-meter resolution. Storms in this part of California typically approach from west-southwest off Pacific, and RainViewer's hyperlocal radar shows their exact position and direction so you can act before conditions change.
A standard forecast covers the broader California region. RainViewer shows the actual cell over Hacienda Heights right now — with direction arrows and a 2-hour nowcast so residents and visitors can make real decisions, not guesses.
Hacienda Heights's highest weather risk aligns with November–March (atmospheric river season). Atmospheric rivers november–march drives precipitation events in this region.
Seasonal transitions bring variable conditions — a live radar is more reliable than a forecast during these less predictable windows.
Precipitation probability drops in Hacienda Heights during May–September, allowing outdoor activities to proceed with lower weather risk.
A radar check before leaving gives Hacienda Heights drivers 20+ minutes to adjust timing or avoid flood-prone roads. Real-time NEXRAD is more actionable than a forecast probability for daily commute decisions in California.
Residents and visitors planning outdoor activities in Hacienda Heights benefit from knowing exactly when rain will arrive from west-southwest off Pacific. A live radar replaces forecast uncertainty with a real decision window.
RainViewer aggregates radar data for the United States from the NEXRAD network operated by NOAA's National Weather Service — 160 WSR-88D stations covering the contiguous US, Alaska, Hawaii, and US territories. Data updates every 4–6 minutes as each station completes its scan cycle. RainViewer processes and displays NEXRAD data at up to 250-meter resolution. For Hacienda Heights, California, the primary NEXRAD source is KVTX (Los Angeles) / KMUX (Mt Umunhum/San Jose) / KBBX (Sacramento).
Hacienda Heights can experience localized flooding during intense rain events, particularly in low-lying areas near drainage channels. Atmospheric rivers november–march means runoff can accumulate quickly in parts of California. A live radar provides advance warning before conditions develop.
Hacienda Heights's primary rain season runs through November–March (atmospheric river season). The driest period is typically May–September.
Yes — RainViewer shows live NEXRAD data for Hacienda Heights at up to 250-meter resolution, updated every 4–6 minutes from KVTX (Los Angeles) / KMUX (Mt Umunhum/San Jose) / KBBX (Sacramento). The hyperlocal radar includes current precipitation, storm direction, and a 2-hour nowcast.
RainViewer Essential sends a rain alert 10–15 minutes before precipitation reaches your saved location in Hacienda Heights, California. Set an alert for your specific address — not just a general California area warning.
Rain can arrive in Hacienda Heights faster than a forecast update — a live radar gives you the window to act.
Forecasts cover California broadly. RainViewer shows the cell position over Hacienda Heights right now.
Your weather app shows rain likely near Hacienda Heights. RainViewer shows the cell position and minutes to arrival.
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storms approach Hacienda Heights from west-southwest off Pacific
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