Sister Island Weather Forecast

    • 53
    • 68

    Mostly Sunny

    • 54
    • 70

    Mostly Sunny

    • 58
    • 74

    Sunny

    • 56
    • 74

    Sunny

    • 57
    • 74

    Sunny

    • 58
    • 74

    Sunny

Today 18 Oct Coastal Chatham

Sunny. Highs in the upper 60s. Northeast Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 18 Oct Coastal Chatham

Mostly clear. Lows in the lower 50s. North Winds 15 to 20 Mph with Gusts up to 30 Mph.

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  • Temperature Real-Time

Sister Island Temperature Statistics

October Temperature

Hunter U. S. Army Airfield (10.6 miles)

  • Lowest 12 October, 2026

    64 °F

  • Average October

    75.7 °F

  • Highest 13 October, 2026

    88.5 °F

Climate (2021–2026)

Hunter U. S. Army Airfield (10.6 miles)

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  • Average Low 2021–2026

    59.5 °F

  • Average 2021–2026

    68.3 °F

  • Average High 2021–2026

    78.2 °F
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