 |
 Current Fullerton Weather Conditions |
Updated December 31st at 1:53 pm |
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| moderate rain mist |
| Temperature: | 61°F |
Dew Point: | 57°F |
| Barometer: | 30.01 inHg |
Wind: | calm |
| Humidity: | 87.9% |
Visibility: | 0M |
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| Fullerton Weather Forecast Summary |
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Today
Dec 31st
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Thursday
Jan 1st
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Friday
Jan 2nd
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Saturday
Jan 3rd
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Sunday
Jan 4th
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 |
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Showers |
Showers |
Cloudy |
Cloudy |
Showers |
62°F
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59°F
57°F |
67°F
55°F |
66°F
59°F |
63°F
57°F |
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| Fullerton Detailed Weather Forecast |
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| Wednesday, December 31st, 2025 |
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Afternoon |
Temperature: 57°F |
| Cloudy with a few showers. |
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Evening |
Temperature: 57°F |
| Cloudy with showers likely. |
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| Thursday, January 1st, 2026 |
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Overnight |
Temperature: 57°F |
| Cloudy with showers likely. |
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Morning |
Temperature: 59°F |
| Cloudy with a few showers. |
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Afternoon |
Temperature: 58°F |
| Cloudy with a few showers. |
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Evening |
Temperature: 57°F |
| Mostly clear with a chance of showers. |
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| Friday, January 2nd, 2026 |
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Overnight |
Temperature: 56°F |
| Clear with cloudy periods with a slight chance of showers. |
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Morning |
Temperature: 64°F |
| A mix of cloud and sun. |
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Afternoon |
Temperature: 64°F |
| Cloudy. |
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Evening |
Temperature: 61°F |
| Cloudy. |
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| Saturday, January 3rd, 2026 |
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Overnight |
Temperature: 59°F |
| Cloudy. |
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Morning |
Temperature: 65°F |
| Cloudy. |
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Afternoon |
Temperature: 64°F |
| Cloudy. |
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Evening |
Temperature: 60°F |
| A mix of cloudy and clear skies. |
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| Sunday, January 4th, 2026 |
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Overnight |
Temperature: 57°F |
| A mix of cloudy and clear skies. |
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Morning |
Temperature: 62°F |
| Cloudy with a chance of showers. |
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Afternoon |
Temperature: 59°F |
| Cloudy with a few showers. |
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Evening |
Temperature: 59°F |
| Cloudy with showers likely. Slight chance of a thunderstorm. |
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| Monday, January 5th, 2026 |
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Overnight |
Temperature: 57°F |
| Cloudy with a few showers. |
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Morning |
Temperature: 59°F |
| A mix of cloud and sun with showers likely. |
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Afternoon |
Temperature: 59°F |
| A mix of cloud and sun with showers likely. |
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Evening |
Temperature: 57°F |
| A mix of cloudy and clear skies with a chance of showers. |
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| Tuesday, January 6th, 2026 |
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Overnight |
Temperature: 55°F |
| Cloudy with a chance of showers. |
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Morning |
Temperature: 59°F |
| Cloudy with a few showers. |
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Afternoon |
Temperature: 57°F |
| Cloudy with a few showers. |
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Evening |
Temperature: 57°F |
| Cloudy with rain. |
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| Wednesday, January 7th, 2026 |
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Overnight |
Temperature: 54°F |
| Cloudy with rain. Windy at times. |
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Morning |
Temperature: 53°F |
| Cloudy with periods of rain. Windy at times. |
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Afternoon |
Temperature: 54°F |
| A mix of cloud and sun with showers likely. Windy at times. |
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Evening |
Temperature: 52°F |
| Clear with cloudy periods with a chance of showers. |
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| Thursday, January 8th, 2026 |
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Overnight |
Temperature: 51°F |
| Clear with cloudy periods with a slight chance of showers. |
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Morning |
Temperature: 55°F |
| Cloudy with a slight chance of showers. |
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Afternoon |
Temperature: 55°F |
| Cloudy. |
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Evening |
Temperature: 52°F |
| Cloudy. |
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