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 Fullerton Weather Forecast Summary |
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Today
Feb 17th
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Wednesday
Feb 18th
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Thursday
Feb 19th
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Friday
Feb 20th
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Saturday
Feb 21st
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Mostly Sunny |
Cloudy |
Mostly Sunny |
Mostly Sunny |
Sunny |
28°C
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31°C
17°C |
32°C
16°C |
33°C
16°C |
32°C
16°C |
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| Fullerton Detailed Weather Forecast |
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| Tuesday, February 17th, 2026 |
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Morning |
Temperature: 26°C |
| Mostly sunny. Windy at times. |
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Afternoon |
Temperature: 25°C |
| Sunny with cloudy periods. Windy at times. |
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Evening |
Temperature: 18°C |
| Clear. |
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| Wednesday, February 18th, 2026 |
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Overnight |
Temperature: 21°C |
| Clear. |
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Morning |
Temperature: 29°C |
| Sunny with cloudy periods. Windy at times. |
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Afternoon |
Temperature: 26°C |
| Cloudy. Slight chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 19°C |
| Clear with cloudy periods. |
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| Thursday, February 19th, 2026 |
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Overnight |
Temperature: 18°C |
| Mostly clear. |
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Morning |
Temperature: 30°C |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 27°C |
| Sunny. |
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Evening |
Temperature: 17°C |
| Clear. |
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| Friday, February 20th, 2026 |
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Overnight |
Temperature: 18°C |
| Mostly clear. |
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Morning |
Temperature: 31°C |
| Sunny with cloudy periods. Slight chance of a thunderstorm. Windy at times. |
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Afternoon |
Temperature: 30°C |
| Sunny. Windy at times. |
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Evening |
Temperature: 18°C |
| Mostly clear. |
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| Saturday, February 21st, 2026 |
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Overnight |
Temperature: 18°C |
| Clear. |
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Morning |
Temperature: 31°C |
| Sunny. |
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Afternoon |
Temperature: 28°C |
| Sunny. |
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Evening |
Temperature: 17°C |
| Clear. |
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| Sunday, February 22nd, 2026 |
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Overnight |
Temperature: 18°C |
| Clear. |
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Morning |
Temperature: 32°C |
| Mostly sunny. Slight chance of a thunderstorm. Windy at times. |
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Afternoon |
Temperature: 31°C |
| Sunny with cloudy periods. |
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Evening |
Temperature: 21°C |
| Cloudy. |
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| Monday, February 23rd, 2026 |
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Overnight |
Temperature: 22°C |
| Cloudy. |
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Morning |
Temperature: 31°C |
| Cloudy. Slight chance of a thunderstorm. Windy at times. |
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Afternoon |
Temperature: 27°C |
| Cloudy. Windy at times. |
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Evening |
Temperature: 20°C |
| Cloudy. |
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| Tuesday, February 24th, 2026 |
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Overnight |
Temperature: 17°C |
| A mix of cloudy and clear skies. |
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Morning |
Temperature: 24°C |
| Sunny with cloudy periods. |
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Afternoon |
Temperature: 20°C |
| Sunny. Windy at times. |
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Evening |
Temperature: 14°C |
| Clear with cloudy periods. |
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| Wednesday, February 25th, 2026 |
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Overnight |
Temperature: 14°C |
| Clear. |
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Morning |
Temperature: 29°C |
| Sunny with cloudy periods. Slight chance of a thunderstorm. |
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Afternoon |
Temperature: 22°C |
| Sunny with cloudy periods. Slight chance of a thunderstorm. Windy at times. |
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Evening |
Temperature: 16°C |
| Clear. |
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