Hazardous Weather Conditions
Current conditions at
FW0063 Fullerton CSU (F0063)
Lat: 33.8805°NLon: 117.88417°WElev: 243.01ft.NA
78°F
26°C
| Humidity | 73% |
| Wind Speed | W 8 MPH |
| Barometer | 30.03 in (1016.93 mb) |
| Dewpoint | 69°F (21°C) |
| Visibility | NA |
| Heat Index | 80°F (27°C) |
| Last update | 22 Jul 11:09 AM PDT |
Extended Forecast for
Fullerton CA
Heat Advisory until July 27, 08:00pm
NOW until 8:00pm Mon
Heat Advisory
Today
High: 90 °F
Sunny
Tonight
Low: 71 °F
Mostly Clear
Thursday
High: 94 °F
Sunny
Thursday Night
Low: 72 °F
Mostly Clear
Friday
High: 94 °F
Sunny
Friday Night
Low: 72 °F
Mostly Clear
Saturday
High: 92 °F
Sunny
Saturday Night
Low: 70 °F
Mostly Clear
Detailed Forecast
Today
Sunny, with a high near 90. Southwest wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 71. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 94. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 72. Southwest wind 5 to 10 mph becoming light south after midnight.
Friday
Sunny, with a high near 94. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
Mostly clear, with a low around 72.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 91.
Sunday Night
Mostly clear, with a low around 69.
Monday
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Mostly sunny, with a high near 88.
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)
12:16 am PDT Jul 22, 2026
11am PDT Jul 22, 2026-6pm PDT Jul 28, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
