NWS Weather Forecast for Selected Cities in New Hampshire
Data from the NWS Offices in New Hampshire
New Hampshire Graphical National Weather Service Forecast
| National Weather Service Forecast for:
Portsmouth, NH Issued by: National Weather Service Gray - Portland, ME |
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| Updated: 1:03 am EDT Oct 11, 2026 | ||||||||||||||||||||||||||||||||||||||||
| Portsmouth, NH | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Partly cloudy, with a low around 37. Northwest wind around 0 mph. |
| Sunday |
Mostly cloudy, with a high near 61. South wind 0 to 10 mph. |
| Sunday Night |
Rain showers between 7pm and 2am, then rain showers and areas of fog between 2am and 5am, then areas of fog and a chance of rain showers. Cloudy, with a low around 48. East wind 0 to 5 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible. |
| Columbus Day |
Areas of fog and a chance of rain showers before 8am. Mostly sunny, with a high near 67. Northwest wind 0 to 5 mph. Chance of precipitation is 30%. |
| Monday Night |
A slight chance of rain showers after 4am. Mostly cloudy, with a low around 48. North wind 0 to 10 mph. |
| Tuesday |
Rain showers likely. Cloudy, with a high near 61. Chance of precipitation is 60%. |
| Tuesday Night |
Rain showers likely before 8pm, then showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 80%. |
| Wednesday |
A chance of rain showers before 3pm. Partly sunny, with a high near 67. Chance of precipitation is 50%. |
| Wednesday Night |
Partly cloudy, with a low around 46. |
| Thursday |
Sunny, with a high near 59. |
| Thursday Night |
Mostly clear, with a low around 44. |
| Friday |
A chance of rain showers. Partly sunny, with a high near 59. Chance of precipitation is 40%. |
| Friday Night |
A chance of rain showers. Mostly cloudy, with a low around 48. Chance of precipitation is 50%. |
| Saturday |
A chance of rain showers. Partly sunny, with a high near 58. |
Forecast from NOAA-NWS for Portsmouth, NH.
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