7-Day Forecast Summary
7-Day Detailed Weather Forecast for San Juan
This Afternoon |
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Temperature: 99°F Wind Speed: 13 mph Wind Direction: SE Forecast: Sunny, with a high near 99. Heat index values as high as 105. Southeast wind around 13 mph, with gusts as high as 21 mph. |
Tonight |
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Temperature: 78°F Wind Speed: 5 to 14 mph Wind Direction: SE Forecast: Mostly clear, with a low around 78. Southeast wind 5 to 14 mph, with gusts as high as 23 mph. |
Sunday |
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Temperature: 99°F Wind Speed: 5 to 13 mph Wind Direction: SE Forecast: Sunny, with a high near 99. Heat index values as high as 105. Southeast wind 5 to 13 mph. |
Sunday Night |
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Temperature: 78°F Wind Speed: 9 to 14 mph Wind Direction: SSE Forecast: Mostly clear, with a low around 78. South southeast wind 9 to 14 mph, with gusts as high as 25 mph. |
Monday |
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Temperature: 100°F Wind Speed: 8 to 14 mph Wind Direction: SSE Forecast: Sunny, with a high near 100. South southeast wind 8 to 14 mph, with gusts as high as 25 mph. |
Monday Night |
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Temperature: 78°F Wind Speed: 10 to 15 mph Wind Direction: SSE Forecast: Clear, with a low around 78. South southeast wind 10 to 15 mph, with gusts as high as 28 mph. |
Tuesday |
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Temperature: 100°F Wind Speed: 10 to 16 mph Wind Direction: SE Forecast: Sunny, with a high near 100. Southeast wind 10 to 16 mph, with gusts as high as 28 mph. |
Tuesday Night |
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Temperature: 79°F Wind Speed: 10 to 17 mph Wind Direction: SE Forecast: Clear, with a low around 79. Southeast wind 10 to 17 mph, with gusts as high as 31 mph. |
Wednesday |
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Temperature: 101°F Wind Speed: 10 to 16 mph Wind Direction: SE Forecast: Sunny, with a high near 101. Southeast wind 10 to 16 mph, with gusts as high as 28 mph. |
Wednesday Night |
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Temperature: 79°F Wind Speed: 9 to 16 mph Wind Direction: SE Forecast: Mostly clear, with a low around 79. Southeast wind 9 to 16 mph, with gusts as high as 29 mph. |
Thursday |
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Temperature: 102°F Wind Speed: 9 to 15 mph Wind Direction: SE Forecast: Sunny, with a high near 102. Southeast wind 9 to 15 mph, with gusts as high as 25 mph. |
Thursday Night |
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Temperature: 78°F Wind Speed: 9 to 15 mph Wind Direction: SE Forecast: Mostly clear, with a low around 78. |
Friday |
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Temperature: 102°F Wind Speed: 8 to 15 mph Wind Direction: SE Forecast: Sunny, with a high near 102. |
Friday Night |
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Temperature: 79°F Wind Speed: 10 to 16 mph Wind Direction: SE Forecast: Mostly clear, with a low around 79. |

