| NWS Forecast for: Fontana CA Issued by: National Weather Service San Diego, CA Last Update: 11:19 am PDT Jun 5, 2026 | |
| Tonight: Increasing clouds, with a low around 60. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 25 mph. Saturday: Partly sunny, with a high near 84. Light southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 25 mph. Saturday Night: Mostly cloudy, with a low around 57. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 25 mph. Sunday: Partly sunny, then gradually becoming sunny, with a high near 82. Light southwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 25 mph. Sunday Night: Mostly clear, with a low around 57. Southwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 25 mph. Monday: Sunny, with a high near 83. Monday Night: Mostly clear, with a low around 58. Tuesday: Sunny, with a high near 83. Tuesday Night: Clear, with a low around 59. Wednesday: Sunny, with a high near 86. Wednesday Night: Clear, with a low around 59. Thursday: Sunny, with a high near 88. Thursday Night: Clear, with a low around 60. Friday: Sunny, with a high near 89. | |
| Fontana CA 34.1°N 117.43°W (Elev. 1296 ft) | |
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