Current conditions at
FW0063 Fullerton CSU (F0063)
Lat: 33.8805°NLon: 117.88417°WElev: 243.01ft.NA
70°F
21°C
| Humidity | 82% |
| Wind Speed | NW 1 MPH |
| Barometer | 29.95 in (1014.22 mb) |
| Dewpoint | 64°F (18°C) |
| Visibility | NA |
| Last update | 19 Aug 04:08 AM PDT |
Extended Forecast for
Fullerton CA
Today
High: 93 °F
Sunny
Tonight
Low: 69 °F
Mostly Clear
Thursday
High: 91 °F
Patchy Fog
then SunnyThursday Night
Low: 70 °F
Mostly Clear
Friday
High: 92 °F
Patchy Fog
then SunnyFriday Night
Low: 70 °F
Mostly Clear
Saturday
High: 92 °F
Patchy Fog
then SunnySaturday Night
Low: 70 °F
Mostly Clear
Sunday
High: 93 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 93. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
Mostly clear, with a low around 69. South wind around 5 mph becoming calm after midnight.
Thursday
Patchy fog between 8am and 11am. Otherwise, sunny, with a high near 91. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 70. Southwest wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 92. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
Mostly clear, with a low around 70.
Saturday
Patchy fog before 11am. Otherwise, sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 70.
Monday
Sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Sunny, with a high near 93.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Fullerton CA
33.87°N 117.93°W (Elev. 184 ft)
33.87°N 117.93°W (Elev. 184 ft)
12:56 am PDT Aug 19, 2026
4am PDT Aug 19, 2026-6pm PDT Aug 25, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
