Great Bay - Nannie Island Weather Forecast

    • 21
    • 28

    Chance Snow

    • 31
    • 38

    Rain

    • 21
    • 34

    Partly Sunny

    • 21
    • 31

    Partly Sunny

    • 23
    • 35

    Chance Snow

    • 14
    • 31

    Partly Sunny

Today 9 Dec Coastal Rockingham

Partly sunny. Highs around 30. Light and variable Winds.

Tonight 9 Dec Coastal Rockingham

Cloudy with a 40 percent chance of snow. Lows around 20. Light and variable Winds, becoming southwest around 10 Mph after midnight.

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  • Temperature Real-Time

Great Bay - Nannie Island Temperature Statistics

December Temperature

Pease Air Force Base / Portsmouth (2.5 miles)

  • Lowest 5 December, 2025

    6.8 °F

  • Average December

    27.6 °F

  • Highest 1 December, 2025

    40.3 °F

Climate (2020–Present)

Pease Air Force Base / Portsmouth (2.5 miles)

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  • Average Low 2020–2025

    42.6 °F

  • Average 2020–2025

    50.9 °F

  • Average High 2020–2025

    59.4 °F
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