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City of Fontana, CAFontana, CA 7-Day Weather Forecast
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Fontana Weather Forecast
Fontana, CA Weather Forecast Date: 221 AM PDT Thu Oct 15 2026
Weather forecast for Fontana, CA
Today Hi: 85°FHi: 29°C Lo: 64°F Lo: 18°C |
Today... Sunny. Highs 81 to 88. Areas of winds northeast 20 to 30 mph with gusts to 45 mph. |
| Fri Hi: 88°FHi: 31°C Lo: 66°F Lo: 19°C |
Friday... Mostly sunny. Highs 83 to 91. Areas of winds east 35 to 45 mph with gusts to 65 mph. |
Sat Hi: 85°FHi: 29°C Lo: 61°F Lo: 16°C |
Saturday... Mostly sunny in the morning...Becoming partly cloudy. Highs 79 to 89. Areas of winds east 15 to 25 mph. Gusts to 40 mph...Becoming 30 mph in the afternoon. |
| Sun Hi: 84°FHi: 29°C Lo: 61°F Lo: 16°C |
Sunday... Mostly sunny. Highs 80 to 87. |
| Mon Hi: 82°FHi: 28°C Lo: 58°F Lo: 14°C |
Monday... Sunny. Highs 78 to 84. |
Tue Hi: 75°FHi: 24°C Lo: 55°F Lo: 13°C |
Tuesday... Mostly sunny in the morning, then partly cloudy with a slight chance of showers in the afternoon. Highs 71 to 77. |
| Wed Hi: 72°FHi: 22°C |
Wednesday... Partly cloudy with a chance of showers. Highs 68 to 74. |
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