10-Day Weather Forecast - Portsmouth, NH

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  • Weekend Weather

  • 48|35°F
    Partly Cloudy
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    Today

    48°F

    Partly cloudy. High temperature around 48F. Dew point will be around 31F with an average humidity of 64%. Winds will be 9 mph from the NW.

    Tonight

    35°F

    Partly cloudy this evening then cloudy with a slight chance of snow after midnight. Lows in the lower 30s. Light and variable winds. Chance of snow 20 percent.

    Hourly details
  • Day

    40°F

    Snow and rain. Snow accumulation up to 1 inch. Highs around 40. Southeast winds around 10 mph with gusts up to 20 mph. Chance of precipitation 90 percent.

    Night

    35°F

    Rain likely. Snow likely after midnight. Little or no snow accumulation. Lows around 30. Northeast winds around 10 mph. Chance of precipitation 70 percent.

    Hourly details
  • Day

    36°F

    Cloudy. Snow likely mainly in the morning. Little or no snow accumulation. Highs in the upper 30s. North winds around 10 mph with gusts up to 25 mph. Chance of snow 60 percent.

    Night

    29°F

    Mostly cloudy in the evening then becoming partly cloudy. A 50 percent chance of snow. Lows in the mid 20s. North winds around 10 mph in the evening becoming light and variable.

    Hourly details
  • Day

    42°F

    Partly sunny. Highs in the lower 40s.

    Night

    31°F

    Partly cloudy. Lows in the upper 20s.

    Hourly details
  • Day

    47°F

    Partly sunny. Highs in the upper 40s.

    Night

    29°F

    Partly cloudy. Lows in the upper 20s.

    Hourly details
  • Day

    37°F

    Mostly cloudy with a chance of rain. A chance of snow in the afternoon. Highs in the upper 40s. Chance of precipitation 30 percent.

    Night

    34°F

    Rain and snow likely. Lows in the lower 30s. Chance of precipitation 60 percent.

    Hourly details
  • Day

    42°F

    Mostly cloudy with a chance of rain and snow in the morning then partly sunny in the afternoon. Highs in the mid 40s. Chance of precipitation 50 percent.

    Night

    19°F

    Mostly clear. Lows around 20.

  • Weekend Weather

  • Day

    38°F

    Mostly sunny. Highs in the upper 30s.

    Night

    28°F

    Partly cloudy. Low temperature around 28F. Dew point will be around 11F with an average humidity of 44%. Winds will be 6 mph from the W.

  • Day

    44°F

    Partly cloudy. High temperature around 44F. Dew point will be around 17F with an average humidity of 41%. Winds will be 9 mph from the W.

    Night

    30°F

    Mostly clear. Low temperature around 30F. Dew point will be around 19F with an average humidity of 57%. Winds will be 6 mph from the W.

  • Day

    45°F

    Partly cloudy. High temperature around 45F. Dew point will be around 22F with an average humidity of 50%. Winds will be 6 mph from the W.

    Night

    32°F

    Partly cloudy. Low temperature around 32F. Dew point will be around 23F with an average humidity of 62%. Winds will be 4 mph from the NW.