 |
 Current Fullerton Weather Conditions |
Updated December 9th at 6:53 pm |
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| Temperature: | 64°F |
Dew Point: | 45°F |
| Barometer: | 29.98 inHg |
Wind: | calm |
| Humidity: | 48.5% |
Visibility: | 0M |
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| Fullerton Weather Forecast Summary |
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Today
Dec 9th
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Wednesday
Dec 10th
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Thursday
Dec 11th
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Friday
Dec 12th
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Saturday
Dec 13th
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Sunny |
Sunny |
Sunny |
Cloudy |
Cloudy |
79°F
|
80°F
63°F |
78°F
63°F |
76°F
62°F |
72°F
61°F |
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| Fullerton Detailed Weather Forecast |
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| Tuesday, December 9th, 2025 |
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Evening |
Temperature: 66°F |
| Clear. |
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| Wednesday, December 10th, 2025 |
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Overnight |
Temperature: 64°F |
| Clear. |
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Morning |
Temperature: 77°F |
| Sunny. |
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Afternoon |
Temperature: 75°F |
| Sunny. |
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Evening |
Temperature: 67°F |
| Clear. |
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| Thursday, December 11th, 2025 |
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Overnight |
Temperature: 64°F |
| Clear. |
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Morning |
Temperature: 75°F |
| Sunny. |
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Afternoon |
Temperature: 73°F |
| Sunny. |
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Evening |
Temperature: 66°F |
| Clear. |
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| Friday, December 12th, 2025 |
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Overnight |
Temperature: 63°F |
| Clear. |
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Morning |
Temperature: 73°F |
| A mix of cloud and sun. |
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Afternoon |
Temperature: 71°F |
| Cloudy. |
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Evening |
Temperature: 65°F |
| Cloudy. |
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| Saturday, December 13th, 2025 |
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Overnight |
Temperature: 61°F |
| Cloudy. |
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Morning |
Temperature: 70°F |
| Cloudy. |
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Afternoon |
Temperature: 70°F |
| Cloudy. |
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Evening |
Temperature: 64°F |
| Cloudy. |
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| Sunday, December 14th, 2025 |
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Overnight |
Temperature: 61°F |
| Cloudy. |
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Morning |
Temperature: 71°F |
| Sunny. |
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Afternoon |
Temperature: 70°F |
| A mix of cloud and sun. |
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Evening |
Temperature: 63°F |
| Clear with cloudy periods. |
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| Monday, December 15th, 2025 |
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Overnight |
Temperature: 60°F |
| Clear. |
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Morning |
Temperature: 71°F |
| Sunny. |
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Afternoon |
Temperature: 69°F |
| Sunny. |
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Evening |
Temperature: 63°F |
| Cloudy. |
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| Tuesday, December 16th, 2025 |
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Overnight |
Temperature: 61°F |
| Cloudy. |
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Morning |
Temperature: 73°F |
| Sunny. |
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Afternoon |
Temperature: 73°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 70°F |
| Clear. Windy at times. |
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| Wednesday, December 17th, 2025 |
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Overnight |
Temperature: 68°F |
| Clear. Windy at times. |
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Morning |
Temperature: 78°F |
| A mix of cloud and sun. Windy at times. |
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Afternoon |
Temperature: 73°F |
| Mostly sunny. |
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Evening |
Temperature: 64°F |
| Clear. |
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