Portsmouth, New Hampshire | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Partly Cloudy
    55°
    Friday 5/17
    Forecast night icon
    55°
    Partly Cloudy
    Hourly
    Night Details
    Partly cloudy late this evening then becoming mostly cloudy. Isolated showers. Lows around 50. Light and variable winds becoming northeast around 10 mph with gusts up to 20 mph. Chance of rain 20 percent.
  • Forecast day icon
    Saturday
    70% Chance Rain Showers
    57°
    Forecast night icon
    Night
    70% Chance Rain Showers
    53°
    Saturday 5/18
    Day
    57°
    70% Chance Rain Showers
    Forecast day icon
    Night
    53°
    70% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Cloudy. Scattered showers in the morning then rain likely in the afternoon. Highs in the upper 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.
    Night Details
    Cloudy. Rain likely in the evening then scattered showers after midnight. Lows around 50. Northeast winds around 10 mph with gusts up to 30 mph. Chance of rain 70 percent.
  • Forecast day icon
    Sunday
    Cloudy
    58°
    Forecast night icon
    Night
    Mostly Cloudy
    50°
    Sunday 5/19
    Day
    58°
    Cloudy
    Forecast day icon
    Night
    50°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Cloudy. Highs around 60. Northeast winds around 10 mph with gusts up to 20 mph.
    Night Details
    Mostly cloudy. Lows in the upper 40s. Light and variable winds.
  • Forecast day icon
    Monday
    Partly Sunny
    71°
    Forecast night icon
    Night
    Partly Cloudy
    54°
    Monday 5/20
    Day
    71°
    Partly Sunny
    Forecast day icon
    Night
    54°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming partly sunny. Highs in the mid 60s.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. Lows in the upper 40s.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    83°
    Forecast night icon
    Night
    Partly Cloudy
    62°
    Tuesday 5/21
    Day
    83°
    Mostly Sunny
    Forecast day icon
    Night
    62°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 70s.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s.
  • Forecast day icon
    Wednesday
    Partly Sunny
    85°
    Forecast night icon
    Night
    Partly Cloudy
    62°
    Wednesday 5/22
    Day
    85°
    Partly Sunny
    Forecast day icon
    Night
    62°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the upper 70s.
    Night Details
    Partly cloudy. Lows in the upper 50s.
  • Forecast day icon
    Thursday
    40% Chance Rain Showers
    81°
    Forecast night icon
    Night
    40% Chance Rain Showers
    60°
    Thursday 5/23
    Day
    81°
    40% Chance Rain Showers
    Forecast day icon
    Night
    60°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 40 percent.
    Night Details
    Partly cloudy with a chance of showers. Lows in the mid 50s. Chance of rain 40 percent.
  • Forecast day icon
    Friday
    Partly Sunny
    76°
    Forecast night icon
    Night
    Mostly Clear
    57°
    Friday 5/24
    Day
    76°
    Partly Sunny
    Forecast day icon
    Night
    57°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the lower 70s.
    Night Details
    Mostly clear. Low temperature around 57F. Dew point will be around 51F with an average humidity of 67%. Winds will be 4 mph from the W.
  • Forecast day icon
    Saturday
    Sunny
    70°
    Forecast night icon
    Night
    30% Chance of Rain
    58°
    Saturday 5/25
    Day
    70°
    Sunny
    Forecast day icon
    Night
    58°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny. High temperature around 70F. Dew point will be around 52F with an average humidity of 61%. Winds will be 2 mph from the S.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 58F. Dew point will be around 51F with an average humidity of 70%. Winds will be 2 mph from the S.
  • Forecast day icon
    Sunday
    30% Chance of Rain
    72°
    Forecast night icon
    Night
    30% Chance of Rain
    59°
    Sunday 5/26
    Day
    72°
    30% Chance of Rain
    Forecast day icon
    Night
    59°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 72F. Dew point will be around 55F with an average humidity of 64%. Winds will be 4 mph from the S.
    Night Details
    Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 59F. Dew point will be around 53F with an average humidity of 72%. Winds will be 3 mph from the S.