Current conditions at
FW0063 Fullerton CSU (F0063)
Lat: 33.8805°NLon: 117.88417°WElev: 243.01ft.NA
65°F
18°C
| Humidity | 87% |
| Wind Speed | W 2 MPH |
| Barometer | 29.93 in (1013.55 mb) |
| Dewpoint | 61°F (16°C) |
| Visibility | NA |
| Last update | 13 Jun 03:08 AM PDT |
Extended Forecast for
Fullerton CA
Overnight

Low: 66 °F
Partly Cloudy
Saturday

High: 84 °F
Sunny
Saturday Night

Low: 66 °F
Mostly Clear
Sunday

High: 86 °F
Sunny
Sunday Night

Low: 66 °F
Increasing
CloudsMonday

High: 84 °F
Mostly Sunny
Monday Night

Low: 64 °F
Mostly Clear
Tuesday

High: 82 °F
Becoming
SunnyTuesday Night

Low: 64 °F
Increasing
Clouds
Detailed Forecast
Overnight
Partly cloudy, with a low around 66. Calm wind.
Saturday
Sunny, with a high near 84. Light west wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 66. West wind 5 to 10 mph becoming light southwest in the evening.
Sunday
Sunny, with a high near 86. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Sunday Night
Increasing clouds, with a low around 66. Southwest wind 5 to 10 mph becoming light in the evening.
Monday
Mostly sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 82.
Tuesday Night
Increasing clouds, with a low around 64.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Increasing clouds, with a low around 63.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 78.
Thursday Night
Increasing clouds, with a low around 62.
Juneteenth
Partly sunny, then gradually becoming sunny, with a high near 77.
Additional Forecasts and Information
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ABOUT 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 Jun 13, 2026
3am PDT Jun 13, 2026-6pm PDT Jun 19, 2026


