Sister Island Weather Forecast

    • 76
    • 87

    Becoming Sunny

    • 76
    • 88

    Chance Thunderstorms

    • 76
    • 87

    Mostly Sunny

    • 76
    • 88

    Sunny

    • 76
    • 90

    Mostly Sunny

    • 76
    • 90

    Mostly Sunny

Today 20 Jun Coastal Chatham

Mostly sunny. Highs in the upper 80s. Southwest Winds 10 to 15 Mph.

Tonight 20 Jun Coastal Chatham

Mostly clear. Lows in the mid 70s. South Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sister Island Temperature Statistics

June Temperature

Hunter U. S. Army Airfield (10.6 miles)

  • Lowest 2 June, 2025

    63 °F

  • Average June

    80.3 °F

  • Highest 18 June, 2025

    93.9 °F

Climate (2020–Present)

Hunter U. S. Army Airfield (10.6 miles)

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  • Average Low 2020–2025

    59.4 °F

  • Average 2020–2025

    68.1 °F

  • Average High 2020–2025

    77.9 °F
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