Portsmouth Island Weather Forecast
- 74
- 82
Increasing Clouds
- 75
- 85
Slight Chance Thunderstorms
- 70
- 80
Chance Thunderstorms
- 73
- 78
Chance Rain Showers
- 73
- 78
Chance Rain Showers
- 72
- 79
Chance Rain Showers
Today 5 Sep East Carteret
Sunny. Highs in the mid 80s. Southwest Winds around 5 Mph, becoming southeast this afternoon.
Tonight 5 Sep East Carteret
Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 70s. Southeast Winds 5 to 10 Mph.
Portsmouth Island Temperature Statistics
September Temperature
Piney Island, Bt-11 Bombing Range (21.7 miles)
Lowest 1 September, 2025
69.1 °FAverage September
72.6 °FHighest 3 September, 2025
78.1 °F
Climate (2020–Present)
Piney Island, Bt-11 Bombing Range (21.7 miles)
Average Low 2020–2025
63.1 °FAverage 2020–2025
68.6 °FAverage High 2020–2025
74.6 °F