Weather forecast for: Fullerton LA
Last Update: 7:46 pm CDT Sep 19, 2026
Tonight: Clear, with a low around 72. Calm wind.
Sunday: Sunny and hot, with a high near 97. Heat index values as high as 102. Calm wind.
Sunday Night: Mostly clear, with a low around 74. Calm wind.
Monday: Sunny and hot, with a high near 97. Heat index values as high as 103. Calm wind.
Monday Night: Partly cloudy, with a low around 74. Calm wind.
Tuesday: Sunny and hot, with a high near 98. Calm wind becoming north around 5 mph.
Tuesday Night: Partly cloudy, with a low around 74. Calm wind.
Wednesday: Sunny, with a high near 96. Calm wind becoming northeast around 5 mph in the morning.
Wednesday Night: Mostly clear, with a low around 72. Calm wind.
Thursday: Sunny, with a high near 94.
Thursday Night: Mostly clear, with a low around 69.
Friday: Mostly sunny, with a high near 93.
Friday Night: Partly cloudy, with a low around 70.
Saturday: Mostly sunny, with a high near 93.