Onslow Beach Weather Forecast

    • 79
    • 91

    Slight Chance Thunderstorms

    • 79
    • 91

    Becoming Sunny

    • 82
    • 91

    Partly Sunny

    • 80
    • 91

    Chance Thunderstorms

    • 77
    • 86

    Chance Thunderstorms

    • 80
    • 86

    Mostly Sunny

    • 81
    • 89

    Slight Chance Thunderstorms

Today 11 Aug Coastal Onslow

Mostly sunny with a chance of Showers and Thunderstorms. Highs in the mid 90s. Southwest Winds 10 to 15 Mph. Chance of rain 30 percent. Heat index Values up to 110.

Tonight 11 Aug Coastal Onslow

Mostly clear this Evening, then becoming partly cloudy. A slight chance of Showers and Thunderstorms. Lows in the mid 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming west around 5 Mph after midnight. Chance of rain 20 percent. Heat index Values up to 106 early this evening.

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Onslow Beach Temperature Statistics

August Temperature

MCAS New River (13 miles)

  • Lowest 4 August, 2026

    75 °F

  • Average August

    81.2 °F

  • Highest 6 August, 2026

    91 °F

Climate (2021–2026)

MCAS New River (13 miles)

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  • Average Low 2021–2026

    54.4 °F

  • Average 2021–2026

    63.8 °F

  • Average High 2021–2026

    73.6 °F
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