Sunday
Mostly sunny
High:
79°F
Mostly sunny, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon.
Fullerton, CA Weather - Extended Forecast
Sunday Night
Mostly cloudy
Overnight low:
53°F
Mostly cloudy, with a low around 53.
Monday
Partly sunny
High:
74°F
Partly sunny, with a high near 74.
Monday Night
Partly cloudy
Overnight low:
53°F
Partly cloudy, with a low around 53.
Tuesday
Sunny
High:
81°F
Tuesday Night
Clear
Overnight low:
55°F
Wednesday
Sunny
High:
87°F
Wednesday Night
Clear
Overnight low:
57°F
Thursday
Sunny
High:
86°F