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 San Ysidro 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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Cloudy |
Cloudy |
Cloudy |
Sunny |
Cloudy |
57°F
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60°F
42°F |
53°F
41°F |
52°F
37°F |
51°F
34°F |
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| San Ysidro Detailed Weather Forecast |
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| Tuesday, February 17th, 2026 |
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Evening |
Temperature: 45°F |
| Cloudy. |
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| Wednesday, February 18th, 2026 |
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Overnight |
Temperature: 43°F |
| Cloudy. |
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Morning |
Temperature: 57°F |
| Mostly sunny. Wind 35 to 45 mph. |
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Afternoon |
Temperature: 54°F |
| A mix of cloud and sun. Wind 35 to 45 mph. |
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Evening |
Temperature: 44°F |
| A mix of cloudy and clear skies. Windy at times. |
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| Thursday, February 19th, 2026 |
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Overnight |
Temperature: 42°F |
| Mostly clear. Windy at times. |
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Morning |
Temperature: 51°F |
| Cloudy. Wind 20 to 30 mph. |
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Afternoon |
Temperature: 49°F |
| Cloudy. Windy. |
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Evening |
Temperature: 42°F |
| A mix of cloudy and clear skies. Windy at times. |
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| Friday, February 20th, 2026 |
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Overnight |
Temperature: 40°F |
| Clear. Windy at times. |
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Morning |
Temperature: 51°F |
| Sunny. Wind 35 to 45 mph. |
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Afternoon |
Temperature: 44°F |
| Sunny. Wind 25 to 40 mph. |
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Evening |
Temperature: 38°F |
| Clear. |
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| Saturday, February 21st, 2026 |
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Overnight |
Temperature: 35°F |
| Clear. |
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Morning |
Temperature: 47°F |
| Sunny. |
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Afternoon |
Temperature: 48°F |
| Sunny. |
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Evening |
Temperature: 42°F |
| Cloudy. |
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| Sunday, February 22nd, 2026 |
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Overnight |
Temperature: 37°F |
| Cloudy. Windy at times. |
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Morning |
Temperature: 46°F |
| Cloudy. Windy. |
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Afternoon |
Temperature: 45°F |
| Cloudy. Windy. |
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Evening |
Temperature: 40°F |
| Cloudy. Windy at times. |
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| Monday, February 23rd, 2026 |
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Overnight |
Temperature: 39°F |
| Cloudy. |
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Morning |
Temperature: 50°F |
| A mix of cloud and sun. |
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Afternoon |
Temperature: 52°F |
| A mix of cloud and sun. |
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Evening |
Temperature: 47°F |
| A mix of cloudy and clear skies. |
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| Tuesday, February 24th, 2026 |
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Overnight |
Temperature: 47°F |
| Clear. |
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Morning |
Temperature: 63°F |
| Sunny with cloudy periods. Windy at times. |
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Afternoon |
Temperature: 65°F |
| A mix of cloud and sun. Windy at times. |
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Evening |
Temperature: 58°F |
| Cloudy. |
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| Wednesday, February 25th, 2026 |
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Overnight |
Temperature: 57°F |
| Clear. |
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Morning |
Temperature: 72°F |
| Sunny. Windy. |
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Afternoon |
Temperature: 68°F |
| Sunny. Windy. |
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Evening |
Temperature: 60°F |
| Cloudy. |
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