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City of Fullerton, CAFullerton, CA 7-Day Weather Forecast
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Fullerton Weather Forecast
Fullerton, CA Weather Forecast Date: 221 AM PDT Thu Oct 15 2026
Weather forecast for Fullerton, CA
Today Hi: 87°FHi: 31°C Lo: 70°F Lo: 21°C |
Today... Sunny, warmer. Highs 91 to 94 towards the coast to 87 to 92 farther inland. Areas of winds northeast 20 to 30 mph with gusts to 55 mph. |
| Fri Hi: 91°FHi: 33°C Lo: 72°F Lo: 22°C |
Friday... Mostly sunny. Highs 95 to 99 towards the coast to 91 to 96 farther inland. Areas of winds east 25 to 35 mph with gusts to 55 mph. |
| Sat Hi: 91°FHi: 33°C Lo: 67°F Lo: 19°C |
Saturday... Mostly sunny. Highs 88 to 93. Areas of winds east 15 to 25 mph with gusts to 35 mph...Becoming 10 to 15 mph with gusts to 25 mph in the afternoon. |
| Sun Hi: 87°FHi: 31°C Lo: 65°F Lo: 18°C |
Sunday... Mostly sunny. Highs 85 to 88. |
| Mon Hi: 83°FHi: 28°C Lo: 62°F Lo: 17°C |
Monday... Mostly sunny. Highs 81 to 84. |
Tue Hi: 75°FHi: 24°C Lo: 59°F Lo: 15°C |
Tuesday... Partly cloudy. Highs around 75. |
Wed Hi: 73°FHi: 23°C |
Wednesday... Partly cloudy with a chance of showers. Highs around 73. |
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