| NWS Forecast for: Portsmouth NH Issued by: National Weather Service Gray/Portland, ME Last Update: 1:45 pm EDT Jul 13, 2025 | |
Tonight: Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 64. South wind 5 to 10 mph. Monday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Areas of fog before 8am. Otherwise, mostly cloudy, with a high near 82. South wind around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Monday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. South wind around 5 mph becoming calm. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Tuesday: Mostly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon. Tuesday Night: Mostly clear, with a low around 68. South wind around 5 mph becoming calm. Wednesday: Mostly sunny, with a high near 89. Wednesday Night: Partly cloudy, with a low around 71. Thursday: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Thursday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 70. Friday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Friday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 67. Saturday: Partly sunny, with a high near 81. Saturday Night: Partly cloudy, with a low around 64. Sunday: Partly sunny, with a high near 80. | |
| Portsmouth NH 43.05°N 70.78°W (Elev. 49 ft) | |
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