Saturday
Partly sunny
High:
70°F
Partly sunny, with a high near 70. Calm wind becoming west around 5 mph in the afternoon.
Fullerton, CA Weather - Extended Forecast
Saturday Night
Patchy fog
Overnight low:
49°F
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 49.
Sunday
Patchy fog
High:
69°F
Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 69.
Sunday Night
Patchy fog
Overnight low:
47°F
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 47.
Monday
Patchy fog
High:
69°F
Monday Night
Patchy fog
Overnight low:
47°F
Tuesday
Patchy fog
High:
71°F
Tuesday Night
Partly cloudy
Overnight low:
48°F
New Year's Day
Mostly sunny
High:
74°F