Portsmouth weather live forecast

Tomorrow's maximum temperature in Portsmouth is expected to be 45°F.

5-day weather forecast updated at 04:02 on Sunday 13th April 2025 GMT

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The 5-day weather forecast for New Hampshire (Portsmouth) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Portsmouth weather forecast by day

Below are the detailed weather forecasts for Portsmouth for the next 5 days.

Portsmouth weather for Sunday 13th April 2025

Expect mostly cloudy with light rain in Portsmouth, New Hampshire with a maximum temperature of 45°F, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 mm of rainfall expected with 59% chance of some rain and a gentle breeze of 11 mph from the north.

  • 45°F maximum temperature45
    °F maximum temperature
  • 37°F minimum temperature37
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 59% chance of some rain59
    % chance of some rain
  • 2-5 mm of rainfall expected<5
    mm of rainfall expected
  • 39°F wind chill39
    °F wind chill
  • Gentle breeze of 11 mph from the North11
    mph wind from N

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Portsmouth weather for Monday 14th April 2025

Expect scattered clouds in Portsmouth, New Hampshire with a maximum temperature of 59°F, maximum UV of 5 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 8 mph from the north-west.

  • 59°F maximum temperature59
    °F maximum temperature
  • 37°F minimum temperature37
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 59°F wind chill59
    °F wind chill
  • Gentle breeze of 8 mph from the North-West8
    mph wind from NW

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Portsmouth weather for Tuesday 15th April 2025

Expect mostly cloudy with light rain in Portsmouth, New Hampshire with a maximum temperature of 57°F, maximum UV of 4 (Moderate) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 52% chance of some rain and a gentle breeze of 11 mph from the west.

  • 57°F maximum temperature57
    °F maximum temperature
  • 45°F minimum temperature45
    °F minimum temperature
  • Mostly cloudy with light rain
    mostly cloudy with light rain
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 52% chance of some rain52
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Gentle breeze of 11 mph from the West11
    mph wind from W

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Portsmouth weather for Wednesday 16th April 2025

Expect broken clouds in Portsmouth, New Hampshire with a maximum temperature of 48°F, maximum UV of 2 (Low) and 4 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 14 mph from the west.

  • 48°F maximum temperature48
    °F maximum temperature
  • 39°F minimum temperature39
    °F minimum temperature
  • Broken clouds
    broken clouds
  • 4 hours of bright sunshine4
    hours of sunshine
  • UV (maximum) index 2 (Low)2
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 43°F wind chill43
    °F wind chill
  • Moderate breeze of 14 mph from the West14
    mph wind from W

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Portsmouth weather for Thursday 17th April 2025

Expect scattered clouds in Portsmouth, New Hampshire with a maximum temperature of 48°F, maximum UV of 5 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 15 mph from the north-west.

  • 48°F maximum temperature48
    °F maximum temperature
  • 36°F minimum temperature36
    °F minimum temperature
  • Scattered clouds
    scattered clouds
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 43°F wind chill43
    °F wind chill
  • Moderate breeze of 15 mph from the North-West15
    mph wind from NW

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