National Weather Service Forecast for:
Portsmouth NH Issued by: National Weather Service Gray/Portland, ME |
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Updated: 9:57 pm EDT Jul 9, 2025 | ||||||||||||||||||
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Tonight |
Showers likely, mainly after 5am. Patchy fog. Otherwise, cloudy, with a low around 63. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible. |
Thursday |
Showers likely, with thunderstorms also possible after 2pm. Areas of fog before 9am. Otherwise, cloudy, with a high near 70. East wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. |
Thursday Night |
Cloudy, with a low around 62. Northeast wind around 5 mph becoming calm. |
Friday |
Partly sunny, with a high near 76. Calm wind becoming east around 5 mph. |
Friday Night |
Mostly cloudy, with a low around 63. Calm wind. |
Saturday |
Partly sunny, with a high near 79. |
Saturday Night |
Partly cloudy, with a low around 64. |
Sunday |
Partly sunny, with a high near 80. |
Sunday Night |
Mostly cloudy, with a low around 66. |
Monday |
Partly sunny, with a high near 85. |
Monday Night |
Mostly cloudy, with a low around 67. |
Tuesday |
Partly sunny, with a high near 86. |
Tuesday Night |
Partly cloudy, with a low around 67. |
Wednesday |
Mostly sunny, with a high near 85. |
Forecast from NOAA-NWS for Portsmouth NH.