Chatham Weather Forecast

    • 44
    • 62

    Mostly Sunny

    • 44
    • 51

    Mostly Sunny

    • 50
    • 55

    Mostly Sunny

    • 52
    • 59

    Partly Sunny

    • 51
    • 58

    Mostly Cloudy

    • 52
    • 59

    Mostly Cloudy

Today 30 Oct Barnstable

Partly sunny this Morning, then clearing. Highs in the mid 60s. West Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 30 Oct Barnstable

Clear, cooler with Lows in the lower 40s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

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Chatham Temperature Statistics

October Temperature

Chatham, Chatham Municipal Airport (1.2 miles)

  • Lowest 24 October, 2026

    36 °F

  • Average October

    55.3 °F

  • Highest 14 October, 2026

    72 °F

Climate (2021–2026)

Chatham, Chatham Municipal Airport (1.2 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    59.6 °F
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