Portsmouth weather live forecast

Tomorrow's maximum temperature in Portsmouth is expected to be -1°C.

  • Saturday
    11th Jan
    Mostly cloudy with light snow (2-5 cm of snow expected)
  • Sunday
    12th Jan
    Scattered clouds
  • Monday
    13th Jan
    Broken clouds
  • Tuesday
    14th Jan
    Broken clouds
  • Wednesday
    15th Jan
    Scattered clouds

5-day weather forecast updated at 04:17 on Saturday 11th January 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 Saturday 11th January 2025

Expect mostly cloudy with light snow in Portsmouth, New Hampshire with a maximum temperature of -1°C, maximum UV of 1 (Low) and no hours of bright sunshine. There are 2-5 cm of snow expected with 100% chance of some snow and a gentle breeze of 14 kph from the north.

  • -1°C maximum temperature-1
    °C maximum temperature
  • -4°C minimum temperature-4
    °C minimum temperature
  • Mostly cloudy with light snow
    mostly cloudy with light snow
  • No hours of bright sunshine0
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 100% chance of some snow100
    % chance of some snow
  • 2-5 cm of snow expected<5
    cm of snow expected
  • -6°C wind chill-6
    °C wind chill
  • Gentle breeze of 14 kph from the North14
    kph wind from N

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Portsmouth weather for Sunday 12th January 2025

Expect scattered clouds in Portsmouth, New Hampshire with a maximum temperature of 1°C, maximum UV of 1 (Low) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the north-west.

  • 1°C maximum temperature1
    °C maximum temperature
  • -6°C minimum temperature-6
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • -3°C wind chill-3
    °C wind chill
  • Gentle breeze of 14 kph from the North-West14
    kph wind from NW

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Portsmouth weather for Monday 13th January 2025

Expect broken clouds in Portsmouth, New Hampshire with a maximum temperature of 2°C, maximum UV of 1 (Low) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the west.

  • 2°C maximum temperature2
    °C maximum temperature
  • -4°C minimum temperature-4
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • -1°C wind chill-1
    °C wind chill
  • Light breeze of 10 kph from the West10
    kph wind from W

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Portsmouth weather for Tuesday 14th January 2025

Expect broken clouds in Portsmouth, New Hampshire with a maximum temperature of 0°C, maximum UV of 1 (Low) and 7 hours of bright sunshine. There are 0 cm of snow expected and a moderate breeze of 21 kph from the west.

  • 0°C maximum temperature0
    °C maximum temperature
  • -5°C minimum temperature-5
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -5°C wind chill-5
    °C wind chill
  • Moderate breeze of 21 kph from the West21
    kph wind from W

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Portsmouth weather for Wednesday 15th January 2025

Expect scattered clouds in Portsmouth, New Hampshire with a maximum temperature of -1°C, maximum UV of 1 (Low) and 9 hours of bright sunshine. There are 0 cm of snow expected and a moderate breeze of 22 kph from the north-west.

  • -1°C maximum temperature-1
    °C maximum temperature
  • -8°C minimum temperature-8
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 1 (Low)1
    UV index (Low)
  • 0 cm of snow expected0
    cm of snow expected
  • -6°C wind chill-6
    °C wind chill
  • Moderate breeze of 22 kph from the North-West22
    kph wind from NW

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

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