| NWS Forecast for: Portsmouth NH Issued by: National Weather Service Gray/Portland, ME Last Update: 8:14 pm EDT Jul 12, 2025 |  |
Tonight: Patchy dense fog. Otherwise, mostly cloudy, with a low around 62. Southeast wind around 5 mph becoming calm. Sunday: Areas of dense fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 78. Light southeast wind increasing to 5 to 10 mph in the morning. Sunday Night: Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 64. South wind around 5 mph. Monday: A 30 percent chance of showers and thunderstorms after 5pm. Areas of fog before 8am. Otherwise, mostly cloudy, with a high near 82. South wind around 5 mph. Monday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 67. South wind around 5 mph becoming calm. Tuesday: Sunny, with a high near 89. Tuesday Night: Mostly clear, with a low around 68. Wednesday: Mostly sunny and hot, with a high near 90. Wednesday Night: Partly cloudy, with a low around 71. Thursday: A 30 percent chance of showers after 2pm. Mostly sunny, with a high near 89. Thursday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 69. Friday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Friday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Saturday: A 30 percent chance of showers. Partly sunny, with a high near 81. | |
| Portsmouth NH 43.07°N 70.78°W (Elev. 33 ft) | |
Visit your local NWS office at: https://www.weather.gov/gyx/ |
