Whitemarsh Island Weather Forecast

    • 53
    • 69

    Becoming Sunny

    • 53
    • 72

    Mostly Sunny

    • 55
    • 71

    Mostly Sunny

    • 56
    • 71

    Partly Sunny

    • 57
    • 72

    Partly Sunny

    • 53
    • 72

    Partly Sunny

    • 31
    • 61

    Mostly Cloudy

Today 23 Dec Coastal Chatham

Mostly sunny. Highs in the upper 60s. Southwest Winds around 5 Mph.

Tonight 23 Dec Coastal Chatham

Mostly clear. Lows in the lower 50s. West Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Whitemarsh Island Temperature Statistics

December Temperature

Hunter U. S. Army Airfield (7.5 miles)

  • Lowest 15 December, 2025

    23.9 °F

  • Average December

    50.7 °F

  • Highest 13 December, 2025

    72.1 °F

Climate (2020–Present)

Hunter U. S. Army Airfield (7.5 miles)

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  • Average Low 2020–2025

    59.2 °F

  • Average 2020–2025

    68 °F

  • Average High 2020–2025

    77.8 °F
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