| NWS Forecast for: Ontario International Arpt CA Issued by: National Weather Service San Diego, CA Last Update: 1:41 am PDT Mar 24, 2025 |  |
| Overnight: Clear, with a low around 56. Calm wind. Monday: Sunny, with a high near 90. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Monday Night: Clear, with a low around 59. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 20 mph. Tuesday: Mostly sunny, with a high near 89. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Tuesday Night: Partly cloudy, with a low around 55. West wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 20 mph. Wednesday: Mostly sunny, with a high near 74. Wednesday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 52. Thursday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 74. Thursday Night: Mostly cloudy, with a low around 51. Friday: Mostly sunny, with a high near 71. Friday Night: Partly cloudy, with a low around 49. Saturday: Mostly sunny, with a high near 72. Saturday Night: Partly cloudy, with a low around 50. Sunday: Partly sunny, with a high near 71. | |
| Ontario International Arpt CA 34.06°N 117.58°W (Elev. 906 ft) | |
Visit your local NWS office at: https://www.weather.gov/sgx |
