7-Day Forecast Summary
7-Day Detailed Weather Forecast for Portsmouth
This Afternoon |
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Temperature: 74°F Wind Speed: 5 mph Wind Direction: SE Forecast: Mostly cloudy, with a high near 74. Southeast wind around 5 mph. |
Tonight |
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Temperature: 60°F Wind Speed: 0 to 5 mph Wind Direction: E Forecast: Patchy fog between 11pm and midnight, then patchy fog and a slight chance of rain showers between midnight and 2am, then rain likely and patchy fog. Mostly cloudy, with a low around 60. East wind 0 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible. |
Tuesday |
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Temperature: 70°F Wind Speed: 5 to 10 mph Wind Direction: E Forecast: Rain. Cloudy, with a high near 70. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible. |
Tuesday Night |
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Temperature: 58°F Wind Speed: 5 mph Wind Direction: NE Forecast: Rain likely before 8pm, then a chance of rain showers between 8pm and 11pm, then a chance of rain showers and patchy fog between 11pm and 2am, then patchy fog and a slight chance of rain showers. Cloudy, with a low around 58. Northeast wind around 5 mph. Chance of precipitation is 70%. |
Wednesday |
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Temperature: 79°F Wind Speed: 0 to 5 mph Wind Direction: E Forecast: Patchy fog before 8am. Mostly sunny, with a high near 79. East wind 0 to 5 mph. |
Wednesday Night |
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Temperature: 62°F Wind Speed: 5 mph Wind Direction: SW Forecast: Mostly clear, with a low around 62. |
Thursday |
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Temperature: 89°F Wind Speed: 5 to 10 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 89. |
Thursday Night |
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Temperature: 69°F Wind Speed: 5 mph Wind Direction: SW Forecast: Partly cloudy, with a low around 69. |
Friday |
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Temperature: 90°F Wind Speed: 5 mph Wind Direction: W Forecast: A chance of rain showers between noon and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 50%. |
Friday Night |
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Temperature: 65°F Wind Speed: 0 to 5 mph Wind Direction: NW Forecast: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 65. Chance of precipitation is 40%. |
Saturday |
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Temperature: 85°F Wind Speed: 5 mph Wind Direction: NE Forecast: Mostly sunny, with a high near 85. |
Saturday Night |
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Temperature: 64°F Wind Speed: 0 to 5 mph Wind Direction: W Forecast: Mostly clear, with a low around 64. |
Sunday |
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Temperature: 84°F Wind Speed: 0 to 5 mph Wind Direction: E Forecast: Sunny, with a high near 84. |
Sunday Night |
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Temperature: 64°F Wind Speed: 0 to 5 mph Wind Direction: SW Forecast: Partly cloudy, with a low around 64. |

