Ontario, California Weather
Ontario, California — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, tide predictions, marine conditions and a solunar fishing forecast for Ontario, San Bernardino County.
Tides, marine forecast and fishing conditions near Ontario. Tide source:
Full aviation weather for Ontario is published on the Ontario International Airport (KONT) page, 5 km away. It carries the current METAR decoded into plain language — surface wind, visibility, cloud layers and ceiling, temperature and dewpoint, and altimeter setting — alongside the raw observation as transmitted. 6 airfields within reach of Ontario have their own pages, listed below.
The Terminal Aerodrome Forecast (TAF) is shown across its full validity period, with each change group broken out so you can see when conditions are expected to shift. Flight category is derived automatically — VFR, MVFR, IFR or LIFR — from reported ceiling and visibility, with runway details and field elevation alongside. Observations update roughly hourly and forecasts several times a day.
Other airports near Ontario: Upland-Cable Airport (KCCB) 6 km · Brackett Field (KPOC) 12 km · San Bernardino International Airport (KSBD) 38 km · Hesperia Airport (KL26) 46 km · Redlands Municipal Airport (KREI) 47 km
Conditions reported at KONT describe the airfield itself. Weather 5 km away can differ, particularly in terrain or near the coast. For conditions at Ontario specifically, see the current conditions and forecast above.
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.
Live animated radar for Ontario and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
| Location | Ontario, San Bernardino County, California |
| Coordinates | 34.063344°N, 117.650888°W |
| Timezone | Pacific Time (America/Los_Angeles) |
| ZIP Code(s) | 91762, 91758, 91761, 91764 |
| Area Code | 818, 747 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Ontario, California Weather Page
This page provides live weather conditions and forecasts for Ontario, California, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, precipitation radar and NOAA GOES-16 satellite imagery. Aviation weather — live METAR observations and TAF forecasts — is published separately on the pages for the nearest reporting airports, linked from the aviation section above. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for Ontario includes coordinates 34.063344°N, 117.650888°W, situated in San Bernardino County. ZIP code 91762, 91758, 91761, 91764. Telephone area code: 818, 747. Timezone: Pacific Time (America/Los_Angeles).
Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.
