| NWS Forecast for: Portsmouth NH Issued by: National Weather Service Gray/Portland, ME Last Update: 1:38 am EDT Jul 10, 2025 |  |
| Overnight: Showers likely, mainly after 5am. Patchy fog. Otherwise, cloudy, with a low around 63. East wind around 5 mph. 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 11am. Otherwise, cloudy, with a high near 71. East wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible. Thursday Night: Patchy fog after 2am. Otherwise, cloudy, with a low around 61. Northeast wind around 5 mph becoming calm. Friday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 78. Calm wind becoming southeast around 5 mph in the afternoon. Friday Night: Partly cloudy, with a low around 64. Calm wind. Saturday: Partly sunny, with a high near 79. Saturday Night: Mostly cloudy, with a low around 64. Sunday: Partly sunny, with a high near 81. Sunday Night: Mostly cloudy, with a low around 64. Monday: Scattered showers after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 30%. Monday Night: Scattered showers. Mostly cloudy, with a low around 66. Chance of precipitation is 30%. Tuesday: Partly sunny, with a high near 85. Tuesday Night: Partly cloudy, with a low around 67. Wednesday: Mostly sunny, with a high near 87. | |
| Portsmouth NH 43.07°N 70.78°W (Elev. 33 ft) | |
Visit your local NWS office at: https://www.weather.gov/gyx/ |
