Current conditions at
FW0063 Fullerton CSU (F0063)
Lat: 33.8805°NLon: 117.88417°WElev: 247.0ft.NA
59°F
15°C
| Humidity | 77% |
| Wind Speed | W 0 MPH |
| Barometer | 30.18 in (1022.01 mb) |
| Dewpoint | 52°F (11°C) |
| Visibility | NA |
| Last update | 21 Jan 10:53 AM PST |
Extended Forecast for
Fullerton CA
Today

High: 69 °F
Mostly Cloudy
Tonight

Low: 52 °F
Mostly Cloudy
Thursday

High: 68 °F
Chance
ShowersThursday Night

Low: 52 °F
Slight Chance
ShowersFriday

High: 66 °F
Slight Chance
ShowersFriday Night

Low: 52 °F
Mostly Cloudy
Saturday

High: 68 °F
Mostly Sunny
Saturday Night

Low: 47 °F
Mostly Clear
Sunday

High: 71 °F
Mostly Sunny
Detailed Forecast
Today
Mostly cloudy, with a high near 69. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 52. Calm wind.
Thursday
A chance of showers, mainly after 10am. Mostly cloudy, with a high near 68. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 52. Calm wind. Chance of precipitation is 20%.
Friday
A slight chance of showers. Partly sunny, with a high near 66. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 73.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Fullerton CA
33.87°N 117.93°W (Elev. 184 ft)
33.87°N 117.93°W (Elev. 184 ft)
2:36 am PST Jan 21, 2026
11am PST Jan 21, 2026-6pm PST Jan 27, 2026


