Portsmouth Island Weather Forecast

    • 47
    • 54

    Increasing Clouds

    • 49
    • 58

    Mostly Cloudy

    • 33
    • 54

    Rain/Sleet Likely

    • 40
    • 43

    Rain

    • 42
    • 58

    Rain

    • 28
    • 44

    Slight Chance Rain

    • 33
    • 37

    Mostly Sunny

Today 21 Jan East Carteret

Mostly sunny. Highs in the lower 50s. Southeast Winds around 5 Mph.

Tonight 21 Jan East Carteret

Mostly cloudy. Not as cool with Lows in the mid 40s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Portsmouth Island Temperature Statistics

January Temperature

Piney Island, Bt-11 Bombing Range (21.7 miles)

  • Lowest 5 January, 2026

    43 °F

  • Average January

    53.7 °F

  • Highest 9 January, 2026

    73 °F

Climate (2021–Present)

Piney Island, Bt-11 Bombing Range (21.7 miles)

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  • Average Low 2021–2026

    62.9 °F

  • Average 2021–2026

    68.3 °F

  • Average High 2021–2026

    74.4 °F
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