Rock Harbor Creek Mouth Weather Forecast

    • 59
    • 69

    Mostly Cloudy

    • 61
    • 69

    Rain Showers Likely

    • 62
    • 72

    Chance Rain Showers

    • 57
    • 72

    Mostly Sunny

    • 55
    • 64

    Mostly Sunny

    • 57
    • 66

    Partly Sunny

    • 61
    • 70

    Partly Sunny

Today 16 Sep Barnstable

Partly sunny. Near steady temperature in the upper 60s. East Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 16 Sep Barnstable

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 50s. East Winds 5 to 10 Mph.

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  • Temperature Real-Time

Rock Harbor Creek Mouth Temperature Statistics

September Temperature

Chatham, Chatham Municipal Airport (7.5 miles)

  • Lowest 13 September, 2025

    46.9 °F

  • Average September

    64.6 °F

  • Highest 6 September, 2025

    79 °F

Climate (2020–Present)

Chatham, Chatham Municipal Airport (7.5 miles)

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  • Average Low 2020–2025

    47.7 °F

  • Average 2020–2025

    54 °F

  • Average High 2020–2025

    60.1 °F
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