Hazardous Weather Conditions
Current conditions at
Fullerton, Fullerton Municipal Airport (KFUL)
Lat: 33.87194°NLon: 117.98472°WElev: 95.0ft.heavy rain,mist
59°F
15°C
| Humidity | 96% |
| Wind Speed | W 5 MPH |
| Barometer | 29.94 in (1013.89 mb) |
| Dewpoint | 58°F (14°C) |
| Visibility | 0.75 mi |
| Last update | 24 Dec 11:36 AM PST |
Extended Forecast for
Fullerton Municipal CA
Flood Watch December 24, 11:52am until December 24, 10:00pm
Wind Advisory until December 24, 10:00pm
Flood Advisory until December 24, 03:51pm
NOW: Multiple hazards in effect

Click HERE for Details
Today

High: 65 °F
Heavy Rain
Tonight

Low: 54 °F
Rain
Christmas Day

High: 65 °F
Showers
Thursday Night

Low: 55 °F
Heavy Rain
Friday

High: 62 °F
Showers
Friday Night

Low: 48 °F
Chance
ShowersSaturday

High: 62 °F
Chance
ShowersSaturday Night

Low: 45 °F
Mostly Clear
Detailed Forecast
Today
Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 65. South wind 15 to 20 mph becoming light southeast in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Tonight
Rain before 10pm, then showers after 10pm. Low around 54. Southeast wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Christmas Day
Showers. High near 65. South wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers. The rain could be heavy at times. Low around 55. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
Showers. High near 62. South wind around 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Saturday
A chance of showers, mainly before 10am. Mostly sunny, with a high near 62. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 45.
Sunday
Sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Partly sunny, with a high near 71.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 50.
Tuesday
A chance of showers. Mostly cloudy, with a high near 72.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Fullerton Municipal CA
33.86°N 117.99°W (Elev. 69 ft)
33.86°N 117.99°W (Elev. 69 ft)
2:23 am PST Dec 24, 2025
11am PST Dec 24, 2025-6pm PST Dec 30, 2025



