7-Day Forecast Summary
7-Day Detailed Weather Forecast for Portsmouth
Overnight |
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Temperature: 63°F Wind Speed: 9 mph Wind Direction: S Forecast: Showers and thunderstorms likely before 3am, then patchy fog and showers and thunderstorms between 3am and 5am, then patchy fog and a chance of showers and thunderstorms. Cloudy, with a low around 63. South wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible. |
Monday |
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Temperature: 85°F Wind Speed: 9 mph Wind Direction: W Forecast: Patchy fog and a chance of showers and thunderstorms before 9am. Mostly sunny, with a high near 85. West wind around 9 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
Monday Night |
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Temperature: 59°F Wind Speed: 6 to 10 mph Wind Direction: NW Forecast: Mostly clear, with a low around 59. Northwest wind 6 to 10 mph. |
Tuesday |
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Temperature: 79°F Wind Speed: 3 to 13 mph Wind Direction: W Forecast: Sunny, with a high near 79. West wind 3 to 13 mph. |
Tuesday Night |
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Temperature: 59°F Wind Speed: 2 to 13 mph Wind Direction: SW Forecast: Partly cloudy, with a low around 59. Southwest wind 2 to 13 mph. |
Wednesday |
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Temperature: 79°F Wind Speed: 2 to 12 mph Wind Direction: S Forecast: Mostly sunny, with a high near 79. South wind 2 to 12 mph. |
Wednesday Night |
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Temperature: 60°F Wind Speed: 5 to 9 mph Wind Direction: S Forecast: A slight chance of rain showers between 11pm and 1am. Partly cloudy, with a low around 60. South wind 5 to 9 mph. |
Thursday |
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Temperature: 80°F Wind Speed: 6 to 20 mph Wind Direction: S Forecast: A chance of rain showers. Partly sunny, with a high near 80. South wind 6 to 20 mph. Chance of precipitation is 30%. |
Thursday Night |
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Temperature: 65°F Wind Speed: 12 to 20 mph Wind Direction: SW Forecast: A chance of rain showers. Mostly cloudy, with a low around 65. Southwest wind 12 to 20 mph. Chance of precipitation is 50%. |
Juneteenth |
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Temperature: 85°F Wind Speed: 10 to 16 mph Wind Direction: SW Forecast: A chance of rain showers. Partly sunny, with a high near 85. Southwest wind 10 to 16 mph. Chance of precipitation is 30%. |
Friday Night |
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Temperature: 63°F Wind Speed: 9 to 14 mph Wind Direction: W Forecast: A chance of rain showers before 8pm. Partly cloudy, with a low around 63. West wind 9 to 14 mph. Chance of precipitation is 30%. |
Saturday |
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Temperature: 86°F Wind Speed: 10 to 16 mph Wind Direction: W Forecast: Sunny, with a high near 86. West wind 10 to 16 mph. |
Saturday Night |
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Temperature: 63°F Wind Speed: 8 to 15 mph Wind Direction: W Forecast: Mostly clear, with a low around 63. West wind 8 to 15 mph. |
Sunday |
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Temperature: 84°F Wind Speed: 8 to 14 mph Wind Direction: W Forecast: Sunny, with a high near 84. West wind 8 to 14 mph. |

