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 San Ysidro Weather Forecast Summary |
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Today
May 13th
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Thursday
May 14th
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Friday
May 15th
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Saturday
May 16th
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Sunday
May 17th
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Mostly Sunny |
Mostly Sunny |
Mostly Sunny |
Sunny |
Mostly Sunny |
90°F
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84°F
69°F |
85°F
63°F |
86°F
63°F |
85°F
62°F |
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| San Ysidro Detailed Weather Forecast |
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| Wednesday, May 13th, 2026 |
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Afternoon |
Temperature: 89°F |
| Sunny with cloudy periods. Windy at times. |
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Evening |
Temperature: 85°F |
| A mix of cloudy and clear skies. Windy at times. |
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| Thursday, May 14th, 2026 |
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Overnight |
Temperature: 75°F |
| A mix of clear and cloudy skies. Windy. |
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Morning |
Temperature: 74°F |
| Mostly sunny. |
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Afternoon |
Temperature: 83°F |
| Mostly sunny. Wind 20 to 30 mph. |
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Evening |
Temperature: 80°F |
| Mostly clear. Wind 20 to 30 mph. |
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| Friday, May 15th, 2026 |
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Overnight |
Temperature: 68°F |
| Mostly clear. Windy. |
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Morning |
Temperature: 68°F |
| Sunny. |
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Afternoon |
Temperature: 83°F |
| Sunny. Windy. |
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Evening |
Temperature: 79°F |
| Clear. Windy. |
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| Saturday, May 16th, 2026 |
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Overnight |
Temperature: 68°F |
| Clear. Windy at times. |
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Morning |
Temperature: 67°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 84°F |
| Sunny. Windy. |
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Evening |
Temperature: 79°F |
| Clear. Wind 20 to 30 mph. |
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| Sunday, May 17th, 2026 |
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Overnight |
Temperature: 67°F |
| Mostly clear. Windy at times. |
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Morning |
Temperature: 67°F |
| Mostly sunny. Windy at times. |
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Afternoon |
Temperature: 82°F |
| Mostly sunny. Wind 20 to 30 mph. |
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Evening |
Temperature: 80°F |
| Mostly clear. Wind 25 to 40 mph. |
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| Monday, May 18th, 2026 |
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Overnight |
Temperature: 68°F |
| Clear. Windy. |
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Morning |
Temperature: 64°F |
| Sunny. Windy at times. |
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Afternoon |
Temperature: 80°F |
| Sunny. Wind 20 to 30 mph. |
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Evening |
Temperature: 77°F |
| Clear. Windy. |
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| Tuesday, May 19th, 2026 |
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Overnight |
Temperature: 67°F |
| Clear. |
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Morning |
Temperature: 67°F |
| Sunny. |
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Afternoon |
Temperature: 80°F |
| Sunny. |
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Evening |
Temperature: 79°F |
| Clear. |
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| Wednesday, May 20th, 2026 |
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Overnight |
Temperature: 69°F |
| Mostly clear. |
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Morning |
Temperature: 69°F |
| Mostly sunny. |
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Afternoon |
Temperature: 85°F |
| Sunny. Windy at times. |
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Evening |
Temperature: 84°F |
| Mostly clear. Windy at times. |
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| Thursday, May 21st, 2026 |
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Overnight |
Temperature: 73°F |
| Mostly clear. |
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Morning |
Temperature: 72°F |
| Mostly sunny. |
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Afternoon |
Temperature: 89°F |
| Mostly sunny. Windy at times. |
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Evening |
Temperature: 87°F |
| Clear. Windy at times. |
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