Portsmouth, New Hampshire | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Cloudy
    52°
    Sunday 5/19
    Forecast night icon
    52°
    Cloudy
    Hourly
    Night Details
    Cloudy. Patchy fog. Lows in the lower 50s. Light and variable winds.
  • Forecast day icon
    Monday
    Partly Sunny
    65°
    Forecast night icon
    Night
    Partly Cloudy
    55°
    Monday 5/20
    Day
    65°
    Partly Sunny
    Forecast day icon
    Night
    55°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy in the morning then becoming partly sunny. Patchy fog in the morning. Highs in the mid 60s. Light and variable winds becoming southeast around 10 mph in the afternoon.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. Patchy fog after midnight. Lows in the lower 50s. South winds around 10 mph in the evening becoming light and variable.
  • Forecast day icon
    Tuesday
    Partly Sunny
    80°
    Forecast night icon
    Night
    Partly Cloudy
    66°
    Tuesday 5/21
    Day
    80°
    Partly Sunny
    Forecast day icon
    Night
    66°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Patchy fog in the morning. Partly sunny. Highs in the lower 80s. Light and variable winds becoming south around 10 mph with gusts up to 20 mph in the afternoon.
    Night Details
    Partly cloudy in the evening then clearing. Lows in the lower 60s. Southwest winds around 10 mph with gusts up to 20 mph in the evening becoming light and variable.
  • Forecast day icon
    Wednesday
    Mostly Sunny
    90°
    Forecast night icon
    Night
    Partly Cloudy
    67°
    Wednesday 5/22
    Day
    90°
    Mostly Sunny
    Forecast day icon
    Night
    67°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Warm with highs in the mid 80s.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. Lows in the lower 60s.
  • Forecast day icon
    Thursday
    30% Chance Rain Showers
    87°
    Forecast night icon
    Night
    30% Chance Rain Showers
    64°
    Thursday 5/23
    Day
    87°
    30% Chance Rain Showers
    Forecast day icon
    Night
    64°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 30 percent.
    Night Details
    Partly cloudy. A chance of showers in the evening. Lows in the upper 50s. Chance of rain 30 percent.
  • Forecast day icon
    Friday
    Partly Sunny
    77°
    Forecast night icon
    Night
    Mostly Clear
    54°
    Friday 5/24
    Day
    77°
    Partly Sunny
    Forecast day icon
    Night
    54°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the mid 70s.
    Night Details
    Mostly clear. Lows in the lower 50s.
  • Forecast day icon
    Saturday
    Partly Sunny
    68°
    Forecast night icon
    Night
    Partly Cloudy
    54°
    Saturday 5/25
    Day
    68°
    Partly Sunny
    Forecast day icon
    Night
    54°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the lower 70s.
    Night Details
    Partly cloudy. Lows in the lower 50s.
  • Forecast day icon
    Sunday
    Partly Sunny
    69°
    Forecast night icon
    Night
    Partly Cloudy
    55°
    Sunday 5/26
    Day
    69°
    Partly Sunny
    Forecast day icon
    Night
    55°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny. Highs in the upper 60s.
    Night Details
    Partly cloudy. Low temperature around 55F. Dew point will be around 51F with an average humidity of 75%. Winds will be 4 mph from the S.
  • Forecast day icon
    Monday
    30% Chance of Rain
    71°
    Forecast night icon
    Night
    40% Chance of Rain
    60°
    Monday 5/27
    Day
    71°
    30% Chance of Rain
    Forecast day icon
    Night
    60°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 71F. Dew point will be around 56F with an average humidity of 70%. Winds will be 4 mph from the S.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 60F. Dew point will be around 57F with an average humidity of 81%. Winds will be 4 mph from the S.
  • Forecast day icon
    Tuesday
    30% Chance of Rain
    71°
    Forecast night icon
    Night
    50% Chance of Rain
    62°
    Tuesday 5/28
    Day
    71°
    30% Chance of Rain
    Forecast day icon
    Night
    62°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 71F. Dew point will be around 60F with an average humidity of 76%. Winds will be 3 mph from the S.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 62F. Dew point will be around 59F with an average humidity of 82%. Winds will be 3 mph from the SW.