7-Day Forecast Summary
7-Day Detailed Weather Forecast for Port Isabel
This Afternoon |
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Temperature: 87°F Wind Speed: 17 mph Wind Direction: SE Forecast: A slight chance of showers and thunderstorms before 3pm. Mostly sunny, with a high near 87. Southeast wind around 17 mph. Chance of precipitation is 20%. |
Tonight |
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Temperature: 82°F Wind Speed: 15 mph Wind Direction: SSE Forecast: A chance of showers and thunderstorms between 10pm and 3am, then showers and thunderstorms likely. Mostly cloudy, with a low around 82. South southeast wind around 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible. |
Monday |
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Temperature: 86°F Wind Speed: 16 mph Wind Direction: SSE Forecast: Showers and thunderstorms likely before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then a slight chance of showers and thunderstorms between 2pm and 5pm. Partly sunny, with a high near 86. South southeast wind around 16 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible. |
Monday Night |
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Temperature: 80°F Wind Speed: 13 to 16 mph Wind Direction: SE Forecast: A chance of showers and thunderstorms between midnight and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 80. Southeast wind 13 to 16 mph. Chance of precipitation is 70%. |
Tuesday |
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Temperature: 84°F Wind Speed: 14 to 17 mph Wind Direction: SSE Forecast: Showers and thunderstorms. Partly sunny, with a high near 84. South southeast wind 14 to 17 mph. Chance of precipitation is 80%. |
Tuesday Night |
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Temperature: 80°F Wind Speed: 12 to 18 mph Wind Direction: SSE Forecast: Showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 80. South southeast wind 12 to 18 mph. Chance of precipitation is 80%. |
Wednesday |
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Temperature: 86°F Wind Speed: 18 mph Wind Direction: S Forecast: Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. South wind around 18 mph. Chance of precipitation is 70%. |
Wednesday Night |
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Temperature: 83°F Wind Speed: 18 to 24 mph Wind Direction: SSE Forecast: A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 83. South southeast wind 18 to 24 mph. Chance of precipitation is 40%. |
Thursday |
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Temperature: 89°F Wind Speed: 24 mph Wind Direction: SSE Forecast: A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 89. South southeast wind around 24 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. |
Thursday Night |
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Temperature: 84°F Wind Speed: 21 to 25 mph Wind Direction: SSE Forecast: Mostly clear, with a low around 84. South southeast wind 21 to 25 mph. |
Juneteenth |
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Temperature: 89°F Wind Speed: 21 mph Wind Direction: SSE Forecast: Mostly sunny, with a high near 89. South southeast wind around 21 mph, with gusts as high as 26 mph. |
Friday Night |
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Temperature: 84°F Wind Speed: 17 mph Wind Direction: SSE Forecast: Partly cloudy, with a low around 84. |
Saturday |
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Temperature: 87°F Wind Speed: 17 mph Wind Direction: SE Forecast: Partly sunny, with a high near 87. |
Saturday Night |
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Temperature: 84°F Wind Speed: 15 to 18 mph Wind Direction: SE Forecast: Partly cloudy, with a low around 84. |

