 |
 Current Fullerton Weather Conditions |
Updated December 28th at 11:53 am |
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| Temperature: | 66°F |
Dew Point: | 37°F |
| Barometer: | 30.15 inHg |
Wind: | N 9 Mph |
| Humidity: | 34.5% |
Visibility: | n/a |
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| Fullerton Weather Forecast Summary |
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Today
Dec 28th
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Monday
Dec 29th
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Tuesday
Dec 30th
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Wednesday
Dec 31st
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Thursday
Jan 1st
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Sunny |
Cloudy |
Cloudy |
Showers |
Showers |
67°F
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68°F
55°F |
70°F
55°F |
67°F
56°F |
63°F
56°F |
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| Fullerton Detailed Weather Forecast |
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| Sunday, December 28th, 2025 |
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Afternoon |
Temperature: 62°F |
| Sunny. |
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Evening |
Temperature: 56°F |
| Clear. |
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| Monday, December 29th, 2025 |
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Overnight |
Temperature: 55°F |
| Clear. Windy at times. |
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Morning |
Temperature: 66°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 63°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 56°F |
| Cloudy. |
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| Tuesday, December 30th, 2025 |
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Overnight |
Temperature: 55°F |
| Cloudy. |
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Morning |
Temperature: 67°F |
| A mix of cloud and sun. |
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Afternoon |
Temperature: 66°F |
| Cloudy. |
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Evening |
Temperature: 60°F |
| Cloudy. |
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| Wednesday, December 31st, 2025 |
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Overnight |
Temperature: 60°F |
| Cloudy. |
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Morning |
Temperature: 64°F |
| Cloudy. |
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Afternoon |
Temperature: 62°F |
| Cloudy with a chance of showers. |
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Evening |
Temperature: 57°F |
| Cloudy with a few showers. |
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| Thursday, January 1st, 2026 |
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Overnight |
Temperature: 56°F |
| Cloudy with a few showers. |
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Morning |
Temperature: 60°F |
| Cloudy with showers. |
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Afternoon |
Temperature: 62°F |
| Cloudy with showers likely. |
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Evening |
Temperature: 60°F |
| Cloudy with a chance of showers. |
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| Friday, January 2nd, 2026 |
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Overnight |
Temperature: 60°F |
| Cloudy with a chance of showers. |
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Morning |
Temperature: 61°F |
| Cloudy with a chance of showers. |
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Afternoon |
Temperature: 62°F |
| Cloudy with a chance of showers. |
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Evening |
Temperature: 60°F |
| Cloudy with showers likely. |
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| Saturday, January 3rd, 2026 |
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Overnight |
Temperature: 59°F |
| Cloudy with a few showers. |
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Morning |
Temperature: 60°F |
| A mix of cloud and sun with showers likely. |
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Afternoon |
Temperature: 60°F |
| Sunny with cloudy periods with a chance of showers. |
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Evening |
Temperature: 56°F |
| Clear with cloudy periods. |
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| Sunday, January 4th, 2026 |
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Overnight |
Temperature: 54°F |
| Clear with cloudy periods. |
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Morning |
Temperature: 60°F |
| Cloudy. |
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Afternoon |
Temperature: 59°F |
| A mix of cloud and sun. |
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Evening |
Temperature: 55°F |
| Clear. |
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| Monday, January 5th, 2026 |
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Overnight |
Temperature: 52°F |
| Clear. |
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Morning |
Temperature: 59°F |
| A mix of cloud and sun. |
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Afternoon |
Temperature: 58°F |
| Cloudy. |
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Evening |
Temperature: 54°F |
| Cloudy. |
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