10-Day Weather Forecast - Portsmouth, NH

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  • |23°F
    Mostly Clear
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    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

    39°F

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

    Night

    32°F

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

    Hourly details
  • Day

    48°F

    Partly sunny. Highs in the upper 40s.

    Night

    35°F

    Partly cloudy. Lows around 30.

    Hourly details
  • Weekend Weather

  • Day

    50°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

    38°F

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

    Hourly details
  • Day

    53°F

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

    Night

    30°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

    42°F

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

    Night

    24°F

    Clear. Low temperature around 24F. Dew point will be around 12F with an average humidity of 53%. Winds will be 8 mph from the NW.

    Hourly details
  • Day

    42°F

    Sunny. High temperature around 42F. Dew point will be around 10F with an average humidity of 34%. Winds will be 6 mph from the W.

    Night

    30°F

    Mostly clear. Low temperature around 30F. Dew point will be around 17F with an average humidity of 51%. Winds will be 6 mph from the SW.

  • Day

    47°F

    Partly cloudy. High temperature around 47F. Dew point will be around 20F with an average humidity of 42%. Winds will be 7 mph from the SW.

    Night

    35°F

    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 35F. Dew point will be around 26F with an average humidity of 64%. Winds will be 5 mph from the SW.

  • Day

    52°F

    Cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 52F. Dew point will be around 35F with an average humidity of 62%. Winds will be 9 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 70%. Winds will be 8 mph from the SW.