| NWS Forecast for: Fullerton CA Issued by: National Weather Service San Diego, CA Last Update: 12:17 pm PDT Oct 5, 2026 |  |
Overnight: Mostly clear, with a low around 74. East wind around 5 mph becoming calm. Tuesday: Sunny, with a high near 101. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Tuesday Night: Clear, with a low around 73. Calm wind becoming southeast around 5 mph. Wednesday: Sunny, with a high near 99. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Wednesday Night: Mostly clear, with a low around 71. Southwest wind around 5 mph becoming calm. Thursday: Sunny, with a high near 96. Thursday Night: Mostly clear, with a low around 69. Friday: Sunny, with a high near 94. Friday Night: Mostly clear, with a low around 69. Saturday: Mostly sunny, with a high near 88. Saturday Night: A slight chance of showers. Partly cloudy, with a low around 67. Sunday: Mostly sunny, with a high near 82. Sunday Night: A slight chance of showers. Partly cloudy, with a low around 64. Columbus Day: Mostly sunny, with a high near 79. | |
| Fullerton CA 33.87°N 117.93°W (Elev. 184 ft) | |
Visit your local NWS office at: https://www.weather.gov/sgx |
