Fullerton, CA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Fullerton Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
| Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Patchy Fog | Partly Cloudy | Clear | Sunny | Mostly Clear | Sunny | Clear | Partly Cloudy |
| Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 52°FLo: 11°C | Hi: 74°FHi: 23°C | Lo: 51°FLo: 11°C | Hi: 73°FHi: 23°C | Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C | Lo: 52°FLo: 11°C | Hi: 80°FHi: 27°C | Lo: 54°FLo: 12°C | Hi: 82°FHi: 28°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1220 PM PST Mon Mar 02 2026 

Fullerton Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Weather World