Sister Island Weather Forecast

    • 62
    • 74

    Chance Thunderstorms

    • 64
    • 73

    Chance Rain Showers

    • 62
    • 75

    Slight Chance Rain Showers

    • 62
    • 78

    Mostly Sunny

    • 63
    • 80

    Mostly Sunny

    • 64
    • 81

    Mostly Sunny

Today 9 Oct Coastal Chatham

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Highs in the mid 70s. Northeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

Tonight 9 Oct Coastal Chatham

Mostly cloudy with a slight chance of Thunderstorms. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Lows in the lower 60s. Northeast Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

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Sister Island Temperature Statistics

October Temperature

Hunter U. S. Army Airfield (10.6 miles)

  • Lowest 2 October, 2025

    65.7 °F

  • Average October

    74.9 °F

  • Highest 4 October, 2025

    84.4 °F

Climate (2020–Present)

Hunter U. S. Army Airfield (10.6 miles)

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  • Average Low 2020–2025

    59.5 °F

  • Average 2020–2025

    68.1 °F

  • Average High 2020–2025

    77.9 °F
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