Hazardous Weather Conditions
Current conditions at
FW0063 Fullerton CSU (F0063)
Lat: 33.8805°NLon: 117.88417°WElev: 243.01ft.NA
29°C
84°F
| Humidity | 46% |
| Wind Speed | NE 2 MPH |
| Barometer | 29.93 in (1013.55 mb) |
| Dewpoint | 16°C (61°F) |
| Visibility | NA |
| Heat Index | 29°C (84°F) |
| Last update | 05 Oct 10:53 PM PDT |
Extended Forecast for
Fullerton CA
Extreme Heat Warning October 5, 11:03pm until October 8, 08:00pm
NOW until 8:00pm Thu
Extreme Heat Warning
Tonight
Low: 23 °C
Mostly Clear
Tuesday
High: 38 °C
Sunny
Tuesday Night
Low: 23 °C
Clear
Wednesday
High: 37 °C
Sunny
Wednesday Night
Low: 22 °C
Mostly Clear
Thursday
High: 36 °C
Sunny
Thursday Night
Low: 21 °C
Mostly Clear
Friday
High: 34 °C
Sunny
Detailed Forecast
Tonight
Mostly clear, with a low around 23. Calm wind.
Tuesday
Sunny, with a high near 38. Light and variable wind becoming southwest 10 to 15 km/h in the afternoon.
Tuesday Night
Clear, with a low around 23. Calm wind becoming southeast 5 to 10 km/h.
Wednesday
Sunny, with a high near 37. Light and variable wind becoming southwest 10 to 15 km/h in the afternoon.
Wednesday Night
Mostly clear, with a low around 22. Calm wind.
Thursday
Sunny, with a high near 36.
Thursday Night
Mostly clear, with a low around 21.
Friday
Sunny, with a high near 34.
Friday Night
Mostly clear, with a low around 21.
Saturday
Mostly sunny, with a high near 31.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 19.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 18.
Columbus Day
Mostly sunny, with a high near 26.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Fullerton CA
33.87°N 117.93°W (Elev. 184 m)
33.87°N 117.93°W (Elev. 184 m)
12:17 pm PDT Oct 5, 2026
11pm PDT Oct 5, 2026-6pm PDT Oct 12, 2026
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