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92831 Weather (Fullerton, CA)

Fullerton, CA WeatherCurrent Conditions and Weather for Fullerton, California
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Clear at Fullerton (92831), temperature is 66°F19°C, dew point 63°F17°C, humidity 89%. Wind direction is N at 0 mphat 0 km/h with visibility of 10 mi16 km. Barometric pressure is 29.88 in1012 mb. Last update: 6:33 am.*
*Time is approximately 6:33 am Sat, Sep 26, 2026. Time will be within 15 minutes of current local time. Fullerton weather forecast data is updated every 15 minutes.

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The snow has finally stopped falling, which frightens us. 'Cause we know what it's thinking and preparing to do to us from high above inside those clouds. ―Guy Lawrence
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Fullerton CA Weather - 9:33 am

Fullerton Weather Forecast

Weather forecast for: Fullerton CA
Last Update: 11:36 pm PDT Sep 25, 2026
Today: Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight: Mostly cloudy, with a low around 69. West wind around 5 mph becoming calm.
Sunday: Mostly sunny, with a high near 87. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Sunday Night: Mostly clear, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.
Monday: Mostly sunny, with a high near 81. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Monday Night: Clear, with a low around 67.
Tuesday: Sunny, with a high near 87.
Tuesday Night: Mostly clear, with a low around 68.
Wednesday: Sunny, with a high near 87.
Wednesday Night: Mostly clear, with a low around 68.
Thursday: Mostly sunny, with a high near 88.
Thursday Night: Mostly clear, with a low around 68.
Friday: Mostly sunny, with a high near 87.

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