Hazardous Weather Conditions
Current conditions at
FW0063 Fullerton CSU (F0063)
Lat: 33.8805°NLon: 117.88417°WElev: 243.01ft.NA
92°F
33°C
| Humidity | 34% |
| Wind Speed | NW 4 MPH |
| Barometer | 29.83 in (1010.16 mb) |
| Dewpoint | 60°F (16°C) |
| Visibility | NA |
| Heat Index | 92°F (33°C) |
| Last update | 03 Oct 07:03 PM PDT |
Extended Forecast for
Fullerton CA
Extreme Heat Warning October 3, 07:30pm until October 8, 08:00pm
NOW until 8:00pm Thu
Extreme Heat Warning
Tonight
Low: 75 °F
Clear
Sunday
High: 102 °F
Sunny
Sunday Night
Low: 76 °F
Mostly Clear
Monday
High: 101 °F
Sunny
Monday Night
Low: 74 °F
Clear
Tuesday
High: 98 °F
Sunny
Tuesday Night
Low: 75 °F
Clear
Wednesday
High: 97 °F
Sunny
Detailed Forecast
Tonight
Clear, with a low around 75. Calm wind becoming east around 5 mph after midnight.
Sunday
Sunny, with a high near 102. Northeast wind 5 to 10 mph becoming southwest in the afternoon.
Sunday Night
Mostly clear, with a low around 76. Calm wind becoming northeast around 5 mph.
Monday
Sunny, with a high near 101. Light and variable wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Clear, with a low around 74. West wind around 5 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 98.
Tuesday Night
Clear, with a low around 75.
Wednesday
Sunny, with a high near 97.
Wednesday Night
Clear, with a low around 73.
Thursday
Sunny, with a high near 95.
Thursday Night
Clear, with a low around 71.
Friday
Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 69.
Saturday
Mostly sunny, with a high near 85.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Fullerton CA
33.89°N 117.94°W (Elev. 197 ft)
33.89°N 117.94°W (Elev. 197 ft)
11:27 am PDT Oct 3, 2026
7pm PDT Oct 3, 2026-6pm PDT Oct 10, 2026
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