| NWS Forecast for: Ontario International Arpt CA Issued by: National Weather Service San Diego, CA Last Update: 1:35 am PDT Jun 14, 2025 | |
| Today: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 33. Light southwest wind becoming west 15 to 20 km/h in the morning. Winds could gust as high as 35 km/h. Tonight: Mostly clear, with a low around 18. West wind 10 to 15 km/h becoming light in the evening. Winds could gust as high as 30 km/h. Sunday: Sunny, with a high near 36. Light southwest wind becoming west 15 to 20 km/h in the afternoon. Winds could gust as high as 35 km/h. Sunday Night: Mostly clear, with a low around 18. 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. Monday: Sunny, with a high near 34. Southwest wind 5 to 10 km/h increasing to 15 to 20 km/h in the afternoon. Winds could gust as high as 35 km/h. Monday Night: Mostly clear, with a low around 18. Tuesday: Sunny, with a high near 34. Tuesday Night: Mostly clear, with a low around 18. Wednesday: Sunny, with a high near 34. Wednesday Night: Mostly clear, with a low around 18. Juneteenth: Sunny, with a high near 33. Thursday Night: Mostly clear, with a low around 18. Friday: Sunny, with a high near 32. | |
| Ontario International Arpt CA 34.06°N 117.58°W (Elev. 906 m) | |
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