Sister Island Weather Forecast

    • 26
    • 49

    Becoming Sunny

    • 41
    • 51

    Mostly Sunny

    • 40
    • 62

    Mostly Cloudy

    • 29
    • 49

    Mostly Sunny

    • 31
    • 52

    Mostly Sunny

    • 33
    • 49

    Partly Sunny

    • 41
    • 55

    Mostly Cloudy

Today 15 Jan Coastal Chatham

Sunny. Highs in the upper 40s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 15 Jan Coastal Chatham

Clear. Lows in the mid 20s. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph this evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sister Island Temperature Statistics

January Temperature

Hunter U. S. Army Airfield (10.6 miles)

  • Lowest 12 January, 2026

    31.8 °F

  • Average January

    56.9 °F

  • Highest 10 January, 2026

    79.2 °F

Climate (2021–Present)

Hunter U. S. Army Airfield (10.6 miles)

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  • Average Low 2021–2026

    59.3 °F

  • Average 2021–2026

    68.1 °F

  • Average High 2021–2026

    77.9 °F
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