| NWS Forecast for: Portsmouth NH Issued by: National Weather Service Gray/Portland, ME Last Update: 6:30 am EDT Jul 13, 2025 | |
| Today: Partly sunny, with a high near 24. Southeast wind 10 to 15 km/h. Tonight: Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 18. Southeast wind 5 to 10 km/h. Monday: A 30 percent chance of showers and thunderstorms after 2pm. Areas of fog before 8am. Otherwise, partly sunny, with a high near 27. South wind 5 to 10 km/h. New rainfall amounts of less than 1 mm, except higher amounts possible in thunderstorms. Monday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 20. Calm wind. Tuesday: Mostly sunny and hot, with a high near 32. West wind 5 to 10 km/h becoming south in the afternoon. Tuesday Night: Mostly clear, with a low around 20. Wednesday: Mostly sunny and hot, with a high near 32. Wednesday Night: Partly cloudy, with a low around 22. Thursday: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 32. Thursday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 22. Friday: A 30 percent chance of showers. Partly sunny, with a high near 31. Friday Night: A 30 percent chance of showers. Partly cloudy, with a low around 19. Saturday: Mostly sunny, with a high near 28. | |
| Portsmouth NH 43.07°N 70.78°W (Elev. 33 m) | |
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