 |
 Current Fullerton Weather Conditions |
Updated October 15th at 12:53 pm |
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| Temperature: | 90°F |
Dew Point: | 36°F |
| Barometer: | 29.95 inHg |
Wind: | calm |
| Humidity: | 14.8% |
Visibility: | 0M |
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| Fullerton Weather Forecast Summary |
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Today
Oct 15th
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Friday
Oct 16th
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Saturday
Oct 17th
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Sunday
Oct 18th
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Monday
Oct 19th
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Sunny |
Mostly Sunny |
Sunny |
Sunny |
Sunny |
87°F
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90°F
75°F |
89°F
75°F |
87°F
73°F |
85°F
71°F |
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| Fullerton Detailed Weather Forecast |
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| Thursday, October 15th, 2026 |
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Afternoon |
Temperature: 86°F |
| Sunny. Windy. |
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Evening |
Temperature: 80°F |
| Clear. Windy. |
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| Friday, October 16th, 2026 |
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Overnight |
Temperature: 76°F |
| Clear. Wind 20 to 30 mph. |
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Morning |
Temperature: 80°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 90°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 82°F |
| Mostly clear. Windy at times. |
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| Saturday, October 17th, 2026 |
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Overnight |
Temperature: 76°F |
| Clear with cloudy periods. |
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Morning |
Temperature: 79°F |
| Sunny. |
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Afternoon |
Temperature: 88°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 79°F |
| Clear. |
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| Sunday, October 18th, 2026 |
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Overnight |
Temperature: 74°F |
| Clear. |
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Morning |
Temperature: 77°F |
| Sunny. |
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Afternoon |
Temperature: 87°F |
| Sunny. |
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Evening |
Temperature: 78°F |
| Clear. |
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| Monday, October 19th, 2026 |
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Overnight |
Temperature: 74°F |
| Clear. |
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Morning |
Temperature: 77°F |
| Sunny. |
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Afternoon |
Temperature: 83°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 73°F |
| Clear. |
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| Tuesday, October 20th, 2026 |
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Overnight |
Temperature: 67°F |
| Clear. |
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Morning |
Temperature: 66°F |
| A mix of sun and cloud. |
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Afternoon |
Temperature: 68°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 62°F |
| Clear with a chance of showers. |
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| Wednesday, October 21st, 2026 |
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Overnight |
Temperature: 59°F |
| Cloudy with clear periods with a chance of showers. Slight chance of a thunderstorm. |
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Morning |
Temperature: 60°F |
| Mostly cloudy with showers likely. |
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Afternoon |
Temperature: 65°F |
| A mix of cloud and sun with showers likely. |
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Evening |
Temperature: 63°F |
| Clear. |
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| Thursday, October 22nd, 2026 |
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Overnight |
Temperature: 60°F |
| Clear. |
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Morning |
Temperature: 63°F |
| Sunny. |
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Afternoon |
Temperature: 71°F |
| Sunny. |
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Evening |
Temperature: 66°F |
| Clear. |
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| Friday, October 23rd, 2026 |
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Overnight |
Temperature: 63°F |
| Clear. |
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Morning |
Temperature: 68°F |
| Sunny. |
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Afternoon |
Temperature: 79°F |
| Sunny. |
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Evening |
Temperature: 73°F |
| Clear. |
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