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 | 32% |
| Wind Speed | SSW 5 MPH |
| Barometer | 30.0 in (1015.92 mb) |
| Dewpoint | 46°F (8°C) |
| Visibility | NA |
| Heat Index | 78°F (26°C) |
| Last update | 14 Mar 11:53 AM PDT |
Extended Forecast for
Fullerton CA
Extreme Heat Watch March 16, 10:00am until March 20, 08:00pm
This Afternoon
High: 83 °F
Sunny
Tonight
Low: 54 °F
Patchy Fog
Sunday
High: 87 °F
Patchy Fog
then SunnySunday Night
Low: 57 °F
Mostly Clear
Monday
High: 94 °F
Sunny
Monday Night
Low: 61 °F
Mostly Clear
Tuesday
High: 96 °F
Sunny
Tuesday Night
Low: 63 °F
Clear
Wednesday
High: 97 °F
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 83. Southwest wind 5 to 10 mph.
Tonight
Patchy fog after 8pm. Otherwise, increasing clouds, with a low around 54. South wind around 5 mph becoming calm in the evening.
Sunday
Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 57. Southwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 94. Light northwest wind becoming west 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 96.
Tuesday Night
Clear, with a low around 63.
Wednesday
Sunny, with a high near 97.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny, with a high near 98.
Thursday Night
Clear, with a low around 63.
Friday
Sunny, with a high near 98.
Additional Forecasts and Information
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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)
2:13 am PDT Mar 14, 2026
12pm PDT Mar 14, 2026-6pm PDT Mar 20, 2026
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