7-Day Forecast Summary
7-Day Detailed Weather Forecast for San Ysidro
Tonight |
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Temperature: 78°F Wind Speed: 3 mph Wind Direction: E Forecast: Partly cloudy, with a low around 78. East wind around 3 mph. |
Saturday |
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Temperature: 103°F Wind Speed: 2 to 6 mph Wind Direction: SSE Forecast: Mostly sunny, with a high near 103. Heat index values as high as 100. South southeast wind 2 to 6 mph. |
Saturday Night |
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Temperature: 75°F Wind Speed: 1 to 6 mph Wind Direction: E Forecast: Partly cloudy, with a low around 75. Heat index values as high as 101. East wind 1 to 6 mph. |
Sunday |
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Temperature: 101°F Wind Speed: 3 mph Wind Direction: SSE Forecast: Sunny, with a high near 101. Heat index values as high as 98. South southeast wind around 3 mph. |
Sunday Night |
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Temperature: 75°F Wind Speed: 2 mph Wind Direction: SW Forecast: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 75. Southwest wind around 2 mph. Chance of precipitation is 20%. |
Monday |
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Temperature: 102°F Wind Speed: 0 to 5 mph Wind Direction: W Forecast: Sunny, with a high near 102. West wind 0 to 5 mph. |
Monday Night |
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Temperature: 75°F Wind Speed: 1 to 5 mph Wind Direction: WSW Forecast: Mostly clear, with a low around 75. West southwest wind 1 to 5 mph. |
Tuesday |
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Temperature: 104°F Wind Speed: 1 to 5 mph Wind Direction: SW Forecast: Sunny, with a high near 104. Southwest wind 1 to 5 mph. |
Tuesday Night |
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Temperature: 76°F Wind Speed: 1 to 5 mph Wind Direction: SW Forecast: Partly cloudy, with a low around 76. Southwest wind 1 to 5 mph. |
Wednesday |
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Temperature: 105°F Wind Speed: 1 to 5 mph Wind Direction: E Forecast: Sunny, with a high near 105. |
Wednesday Night |
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Temperature: 76°F Wind Speed: 1 to 5 mph Wind Direction: SE Forecast: Mostly clear, with a low around 76. |
Thursday |
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Temperature: 105°F Wind Speed: 1 to 5 mph Wind Direction: ESE Forecast: Sunny, with a high near 105. |
Thursday Night |
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Temperature: 77°F Wind Speed: 1 to 5 mph Wind Direction: ESE Forecast: Mostly clear, with a low around 77. |
Friday |
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Temperature: 104°F Wind Speed: 1 to 5 mph Wind Direction: E Forecast: Sunny, with a high near 104. |

