| NWS Forecast for: Ontario International Arpt CA Issued by: National Weather Service San Diego, CA Last Update: 2:04 am PDT Jun 13, 2025 |  |
| Overnight: Partly cloudy, with a low around 16. Calm wind. Friday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 31. Light southwest wind increasing to 15 to 20 km/h in the morning. Winds could gust as high as 35 km/h. Friday Night: Patchy fog after 2am. Otherwise, mostly clear, with a low around 17. West wind 15 to 20 km/h decreasing to 5 to 10 km/h after midnight. Winds could gust as high as 30 km/h. Saturday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 33. Light southwest wind becoming west 20 to 25 km/h in the afternoon. Winds could gust as high as 35 km/h. Saturday Night: Partly cloudy, with a low around 18. West wind 15 to 20 km/h becoming west 5 to 10 km/h after midnight. Winds could gust as high as 35 km/h. Sunday: Patchy fog before 11am. Otherwise, sunny, with a high near 35. Sunday Night: Mostly clear, with a low around 18. Monday: Patchy fog before 11am. Otherwise, sunny, with a high near 34. Monday Night: Increasing clouds, with a low around 18. Tuesday: Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 33. Tuesday Night: Mostly clear, with a low around 18. Wednesday: Patchy fog. Otherwise, sunny, with a high near 34. Wednesday Night: Mostly clear, with a low around 18. Juneteenth: Patchy fog. Otherwise, sunny, with a high near 33. | |
| Ontario International Arpt CA 34.06°N 117.58°W (Elev. 906 m) | |
Visit your local NWS office at: https://www.weather.gov/sgx |
