Great Bay - Nannie Island Weather Forecast

    • 61
    • 79

    Mostly Sunny

    • 65
    • 79

    Mostly Cloudy

    • 68
    • 81

    Chance Rain Showers

    • 68
    • 84

    Slight Chance Thunderstorms

    • 66
    • 81

    Chance Rain Showers

    • 67
    • 82

    Mostly Sunny

Today 4 Aug Coastal Rockingham

Sunny, warm with Highs in the mid 80s. Light and variable Winds, becoming southwest around 10 Mph this afternoon.

Tonight 4 Aug Coastal Rockingham

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 60s. Light and variable Winds.

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  • Temperature Real-Time

Great Bay - Nannie Island Temperature Statistics

August Temperature

Pease Air Force Base / Portsmouth (2.5 miles)

  • Lowest 1 August, 2026

    66.6 °F

  • Average August

    75.1 °F

  • Highest 1 August, 2026

    82.9 °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

    50.7 °F

  • Average High 2021–2026

    59.2 °F
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