Rock Harbor Beach Weather Forecast

    • 33
    • 39

    Clearing Late

    • 36
    • 47

    Mostly Sunny

    • 43
    • 50

    Rain

    • 30
    • 54

    Rain

    • 35
    • 42

    Mostly Cloudy

    • 30
    • 46

    Partly Sunny

    • 28
    • 37

    Slight Chance Snow

Today 16 Dec Barnstable

Sunny. Near steady temperature in the mid 30s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 16 Dec Barnstable

Mostly cloudy this Evening, then becoming partly cloudy. Near steady temperature in the mid 30s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rock Harbor Beach Temperature Statistics

December Temperature

Chatham, Chatham Municipal Airport (7.5 miles)

  • Lowest 5 December, 2025

    19 °F

  • Average December

    34.6 °F

  • Highest 2 December, 2025

    50 °F

Climate (2020–Present)

Chatham, Chatham Municipal Airport (7.5 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    53.9 °F

  • Average High 2020–2025

    59.9 °F
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