San Antonio Heights, California — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, tides and marine conditions for San Antonio Heights, San Bernardino County.
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San Antonio Heights rises from the foothills, a place where the chaparral-clad slopes begin their serious ascent towards the imposing San Gabriel Mountains. It lies 4.0 miles north of Upland, CA (from Upland, CA: bearing 353°T), and is situated 6.4 miles north of Ontario. The air here, especially as the sun begins its slow descent, carries a dry, resinous scent, a perfume of sagebrush and distant pine that hints at the wilder country above. The houses, often set on generous lots, follow the natural contours of the land, their roofs a scattered mosaic against the ochre and sage of the hillsides. From many vantage points, the valley floor unfolds below like a rumpled, sun-bleached blanket, the urban sprawl of the Inland Empire a distant, muted hum. A persistent hawk often circles overhead, its silhouette stark against the vast, pale blue of the California sky, a silent sentinel observing the quiet diligence of this elevated settlement. This elevated tract, once part of a larger agricultural endeavor, retains echoes of its citrus-growing past, though the groves have largely given way to residential development and a scattering of small businesses that serve the local populace. The early visionaries saw potential in this sun-drenched incline, a place to escape the valley's summer heat, and that aspiration still seems to inform the character of San Antonio Heights. The economy, while not defined by a single industry, leans towards service and the quiet support of the surrounding communities, a steady, unassuming rhythm that belies the dramatic geological forces that shaped these mountains. The proximity to nature is a defining feature; trails that beckon hikers and equestrians begin just beyond the last paved road, leading into canyons where the silence is broken only by the crunch of gravel underfoot and the rustle of unseen creatures.
| Location | San Antonio Heights, San Bernardino County, California |
| Coordinates | 34.155564°N, 117.656444°W |
| Timezone | Pacific Time (America/Los_Angeles) |
| ZIP Code(s) | 91784 |
| Area Code | 818, 747 |
| Page generated | June 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |