Sunday
Mostly sunny
High:
90°F
Mostly sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.
Fullerton, CA Weather - Extended Forecast
Sunday Night
Mostly clear
Overnight low:
58°F
Mostly clear, with a low around 58. West wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny
High:
97°F
Mostly sunny, with a high near 97.
Monday Night
Mostly clear
Overnight low:
62°F
Mostly clear, with a low around 62.
Tuesday
Sunny
High:
100°F
Tuesday Night
Mostly clear
Overnight low:
63°F
Wednesday
Sunny
High:
98°F
Wednesday Night
Mostly clear
Overnight low:
61°F
Thursday
Sunny
High:
99°F
Thursday Night
Mostly clear
Overnight low:
63°F
Friday
Sunny
High:
99°F