Onslow Beach Weather Forecast

    • 69
    • 77

    Slight Chance Thunderstorms

    • 62
    • 74

    Chance Rain Showers

    • 60
    • 73

    Mostly Sunny

    • 61
    • 75

    Sunny

    • 63
    • 78

    Mostly Sunny

    • 66
    • 79

    Mostly Sunny

Today 23 Sep Coastal Onslow

Cloudy with a slight chance of Showers and Thunderstorms. Breezy with Highs in the mid 70s. North Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 23 Sep Coastal Onslow

Cloudy. A slight chance of Showers in the evening. Breezy with Lows in the mid 60s. North Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

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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

    63.8 °F

  • Average High 2021–2026

    73.6 °F
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