Piscataqua River - Mast Cove Weather Forecast

    • 52
    • 62

    Rain

    • 52
    • 59

    Rain

    • 52
    • 59

    Rain

    • 53
    • 66

    Mostly Cloudy

    • 53
    • 71

    Mostly Cloudy

    • 56
    • 73

    Partly Sunny

Today 26 Sep Coastal York

Mostly cloudy. A chance of rain this Morning, then rain this afternoon. Highs in the lower 60s. Northeast Winds 15 to 20 Mph with Gusts up to 40 Mph. Chance of rain 90 percent.

Tonight 26 Sep Coastal York

Rain. Lows in the lower 50s. Northeast Winds 15 to 20 Mph with Gusts up to 40 Mph. Chance of rain 90 percent.

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Piscataqua River - Mast Cove Temperature Statistics

September Temperature

Pease Air Force Base / Portsmouth (2.5 miles)

  • Lowest 20 September, 2026

    42.8 °F

  • Average September

    63.5 °F

  • Highest 10 September, 2026

    86.5 °F

Climate (2021–2026)

Pease Air Force Base / Portsmouth (2.5 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    59.1 °F
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