Chatham Harbor - Tern Island Weather Forecast

    • 65
    • 84

    Mostly Sunny

    • 67
    • 83

    Mostly Sunny

    • 67
    • 84

    Rain Showers

    • 66
    • 83

    Slight Chance Rain Showers

    • 67
    • 81

    Mostly Sunny

    • 67
    • 79

    Partly Sunny

Today 20 Jun Barnstable

Sunny. Highs in the lower 80s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 20 Jun Barnstable

Mostly clear. Lows in the mid 60s. Highs in the lower 80s.

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Chatham Harbor - Tern Island Temperature Statistics

June Temperature

Chatham, Chatham Municipal Airport (1.9 miles)

  • Lowest 2 June, 2026

    42.1 °F

  • Average June

    65 °F

  • Highest 13 June, 2026

    84 °F

Climate (2021–2026)

Chatham, Chatham Municipal Airport (1.9 miles)

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  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    59.8 °F
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