Onslow Beach Weather Forecast

    • 81
    • 89

    Chance Thunderstorms

    • 82
    • 88

    Chance Thunderstorms

    • 81
    • 88

    Chance Thunderstorms

    • 79
    • 87

    Rain Showers Likely

    • 78
    • 87

    Rain Showers Likely

    • 77
    • 87

    Chance Thunderstorms

Today 18 Aug Coastal Onslow

Sunny. A chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent. Heat index Values up to 112.

Tonight 18 Aug Coastal Onslow

Partly cloudy. A chance of Showers and Thunderstorms in the evening. Lows in the upper 70s. Southwest Winds 5 to 10 Mph, becoming west after midnight. Chance of rain 30 percent. Heat index Values up to 107 early in the evening.

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Onslow Beach Temperature Statistics

August Temperature

MCAS New River (13 miles)

  • Lowest 4 August, 2026

    75 °F

  • Average August

    82.9 °F

  • Highest 11 August, 2026

    95 °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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