Onslow Beach Weather Forecast

    • 73
    • 83

    Partly Sunny

    • 73
    • 83

    Chance Rain Showers

    • 73
    • 83

    Chance Thunderstorms

    • 70
    • 80

    Chance Rain Showers

    • 65
    • 79

    Chance Thunderstorms

    • 63
    • 76

    Partly Sunny

Today 20 Sep Coastal Onslow

Partly sunny. Highs in the mid 80s. East Winds 5 to 10 Mph.

Tonight 20 Sep Coastal Onslow

Partly cloudy. Lows in the lower 70s. Southeast Winds around 5 Mph in the Evening, becoming light and variable.

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Onslow Beach Temperature Statistics

September Temperature

MCAS New River (13 miles)

  • Lowest 8 September, 2026

    66 °F

  • Average September

    79.6 °F

  • Highest 5 September, 2026

    96.1 °F

Climate (2021–2026)

MCAS New River (13 miles)

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  • Average Low 2021–2026

    54.5 °F

  • Average 2021–2026

    63.9 °F

  • Average High 2021–2026

    73.6 °F
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