Chatham - Stage Harbor Weather Forecast

    • 59
    • 65

    Increasing Clouds

    • 58
    • 64

    Mostly Cloudy

    • 57
    • 63

    Mostly Cloudy

    • 57
    • 62

    Chance Rain Showers

    • 58
    • 63

    Rain Showers Likely

    • 58
    • 65

    Rain Showers Likely

Today 21 Sep Barnstable

Partly sunny. Highs in the mid 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 21 Sep Barnstable

Mostly cloudy. Near steady temperature in the upper 50s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Chatham - Stage Harbor Temperature Statistics

September Temperature

Chatham, Chatham Municipal Airport (1.9 miles)

  • Lowest 15 September, 2026

    51.1 °F

  • Average September

    66 °F

  • Highest 10 September, 2026

    80.1 °F

Climate (2021–2026)

Chatham, Chatham Municipal Airport (1.9 miles)

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  • Average Low 2021–2026

    47.3 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    59.7 °F
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