Portsmouth Weather Forecast

    • 50
    • 65

    Partly Sunny

    • 45
    • 63

    Partly Sunny

    • 48
    • 67

    Partly Sunny

    • 49
    • 68

    Partly Sunny

    • 50
    • 67

    Mostly Cloudy

    • 51
    • 69

    Partly Sunny

Today 25 Sep Coastal Rockingham

Cloudy with a chance of Sprinkles this Morning, then partly sunny this afternoon. Highs in the mid 60s. Northeast Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 25 Sep Coastal Rockingham

Partly cloudy. Lows around 50. Northeast Winds 10 to 15 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portsmouth Temperature Statistics

September Temperature

Pease Air Force Base / Portsmouth (3.1 miles)

  • Lowest 21 September, 2023

    50 °F

  • Average September

    67.6 °F

  • Highest 7 September, 2023

    87.8 °F

Climate (2010–Present)

Pease Air Force Base / Portsmouth (3.1 miles)

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  • Average Low 2010–Present

    42.8 °F

  • Average 2010–Present

    51.1 °F

  • Average High 2010–Present

    59.7 °F
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