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Ontario, California Weather

Ontario, California — live current conditions, hourly and 7-day forecasts, NWS alerts, aviation weather, radar and satellite imagery, tides and marine conditions for Ontario, San Bernardino County.

🌡️ Current Conditions
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24-Hour Forecast
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Current Conditions Detail
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7-Day Forecast
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🌊 Marine & Fishing

Tides, marine forecast and fishing conditions near Ontario. Nearest NOAA tide station:

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✈️ Aviation Weather

Flight conditions near Ontario — sourced from the FAA Aviation Weather Center. Nearest reporting station: locating…

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🌿 Air Quality
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NWS Extended Forecast
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📡 Precipitation Radar

Live animated radar for Ontario and surroundings — RainViewer.

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🛰️ Satellite Imagery

NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.

NOAA GOES-16 CONUS GEOCOLOR satellite animated loop
🛰️ GEOCOLOR loop 🌡️ Infrared (IR) 🌀 NHC Hurricane Satellite 🔗 NOAA Full Viewer

Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload

🌙 Astronomy
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About Ontario, California

Ontario, California, rests in a valley cradled by imposing mountain ranges, a landscape sculpted by ancient geological forces. It lies 2.4 miles south of Upland, CA (from Upland, CA: bearing 183°T), and is situated 4.4 miles south-west of Rancho Cucamonga. Historically, this region was a vital stop for travelers and settlers, its fertile lands eventually giving way to a burgeoning agricultural economy driven by citrus groves and vineyards, the sweet scent of blossoms often perfuming the air. The economy has since diversified, embracing logistics and manufacturing, yet the echo of its agricultural past can still be felt in the enduring connection to the land. This transition has shaped Ontario into a hub where industry meets the open sky, a place where the promise of opportunity has always been a driving force. The cultural character of Ontario is one of pragmatic optimism, a spirit that has seen it through periods of growth and change. While no singular, universally recognized landmark defines its skyline, the city boasts a rich civic heritage evident in its well-preserved historic downtown buildings, each telling a silent story of past endeavors. Educational pursuits are valued, with institutions fostering learning and innovation within the community. Sports teams here often reflect the blue-collar grit and determination of its residents, embodying a fierce local pride. Major annual events celebrate community spirit and bring people together, a tradition that has become part of Ontario's enduring identity.

LocationOntario, San Bernardino County, California
Coordinates34.063344°N, 117.650888°W
TimezonePacific Time (America/Los_Angeles)
ZIP Code(s)91762, 91758, 91761, 91764
Area Code818, 747
Page generatedJune 2026
Weather dataOpen-Meteo (open-source), NOAA National Weather Service