Portsmouth weather live forecast

Tomorrow's maximum temperature in Portsmouth is expected to be 26°C.

5-day weather forecast updated at 04:03 on Thursday 4th July 2024 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 Thursday 4th July 2024

Expect isolated thunderstorms in Portsmouth, New Hampshire with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 59% chance of some rain and a gentle breeze of 13 kph from the south-west.

  • 26°C maximum temperature26
    °C maximum temperature
  • 20°C minimum temperature20
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 59% chance of some rain59
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 13 kph from the South-West13
    kph wind from SW

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Portsmouth weather for Friday 5th July 2024

Expect fog in low lying areas in Portsmouth, New Hampshire with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the south-east.

  • 27°C maximum temperature27
    °C maximum temperature
  • 20°C minimum temperature20
    °C minimum temperature
  • Fog in low lying areas
    fog in low lying areas
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Light breeze of 12 kph from the South-East12
    kph wind from SE

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Portsmouth weather for Saturday 6th July 2024

Expect isolated thunderstorms in Portsmouth, New Hampshire with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 4 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 85% chance of some rain and a gentle breeze of 18 kph from the south.

  • 26°C maximum temperature26
    °C maximum temperature
  • 20°C minimum temperature20
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 2 hours of bright sunshine2
    hours of sunshine
  • UV (maximum) index 4 (Moderate)4
    UV index (Moderate)
  • 85% chance of some rain85
    % chance of some rain
  • 5-10 mm of rainfall expected<10
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 18 kph from the South18
    kph wind from S

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Portsmouth weather for Sunday 7th July 2024

Expect broken clouds in Portsmouth, New Hampshire with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south-west.

  • 31°C maximum temperature31
    °C maximum temperature
  • 23°C minimum temperature23
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 7 (High)7
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Gentle breeze of 15 kph from the South-West15
    kph wind from SW

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Portsmouth weather for Monday 8th July 2024

Expect scattered clouds in Portsmouth, New Hampshire with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the west.

  • 30°C maximum temperature30
    °C maximum temperature
  • 22°C minimum temperature22
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 8 (Very High)8
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Light breeze of 10 kph from the West10
    kph wind from W

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Metric (°C / mm)  |  Imperial (°F / inches)

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