Eastham Weather Forecast

    • 58
    • 71

    Increasing Clouds

    • 60
    • 72

    Chance Rain Showers

    • 61
    • 75

    Chance Rain Showers

    • 55
    • 75

    Mostly Sunny

    • 54
    • 68

    Mostly Sunny

    • 56
    • 70

    Partly Sunny

Today 16 Sep Barnstable

Mostly sunny. Near steady temperature in the upper 60s. East Winds around 10 Mph. Gusts up to 20 Mph.

Tonight 16 Sep Barnstable

Mostly cloudy. Lows in the upper 50s. East Winds 5 to 10 Mph.

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Eastham Temperature Statistics

September Temperature

Chatham, Chatham Municipal Airport (9.3 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 (9.3 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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