10-Day Weather Forecast - Portsmouth, NH

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  • 51|23°F
    Rain
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    Today

    51°F

    Mostly sunny with likely rain. Chance of precipitation 85%. High temperature around 51F. Dew point will be around 20F with an average humidity of 51%. Winds will be 16 mph from the W.

    Tonight

    23°F

    Mostly clear. Lows around 19. West winds 15 to 20 mph diminishing to around 10 mph after midnight.

    Hourly details
  • Day

    33°F

    Mostly sunny. Highs in the upper 30s. West winds around 10 mph with gusts up to 20 mph in the morning becoming light and variable.

    Night

    26°F

    Partly cloudy. Lows in the lower 20s. Light and variable winds.

    Hourly details
  • Day

    40°F

    Mostly sunny. Highs in the lower 40s. Light and variable winds becoming south around 10 mph in the afternoon.

    Night

    34°F

    Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 20s.

    Hourly details
  • Day

    47°F

    Partly sunny. Highs in the upper 40s.

    Night

    30°F

    Partly cloudy. Lows around 30.

    Hourly details
  • Weekend Weather

  • Day

    42°F

    Partly sunny in the morning then becoming mostly cloudy. A chance of snow in the morning. A chance of rain. Highs in the mid 40s. Chance of precipitation 40 percent.

    Night

    33°F

    Mostly cloudy with a chance of rain and snow. Lows in the lower 30s. Chance of precipitation 40 percent.

    Hourly details
  • Day

    42°F

    A chance of snow in the morning. Mostly cloudy with a chance of rain. Highs around 50. Chance of precipitation 40 percent.

    Night

    28°F

    A chance of rain in the evening. Partly cloudy with a chance of snow. Lows around 30. Chance of precipitation 40 percent.

    Hourly details
  • Day

    39°F

    Mostly sunny. A chance of snow in the morning. Highs in the mid 40s. Chance of snow 30 percent.

    Night

    24°F

    Mostly clear. Low temperature around 24F. Dew point will be around 10F with an average humidity of 49%. Winds will be 9 mph from the NW.

  • Day

    40°F

    Sunny. High temperature around 40F. Dew point will be around 15F with an average humidity of 43%. Winds will be 4 mph from the NW.

    Night

    28°F

    Mostly clear. Low temperature around 28F. Dew point will be around 18F with an average humidity of 59%. Winds will be 6 mph from the SW.

  • Day

    45°F

    Partly cloudy. High temperature around 45F. Dew point will be around 26F with an average humidity of 56%. Winds will be 7 mph from the SW.

    Night

    38°F

    Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 38F. Dew point will be around 31F with an average humidity of 73%. Winds will be 6 mph from the SW.

  • Day

    49°F

    Cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 49F. Dew point will be around 36F with an average humidity of 69%. Winds will be 6 mph from the SW.

    Night

    44°F

    Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 44F. Dew point will be around 38F with an average humidity of 75%. Winds will be 7 mph from the SW.