Chatham Harbor Entrance Weather Forecast

    • 70
    • 75

    Rain Showers

    • 68
    • 76

    Rain Showers

    • 67
    • 74

    Chance Rain Showers

    • 67
    • 72

    Partly Sunny

    • 68
    • 72

    Partly Sunny

    • 69
    • 73

    Partly Sunny

Today 21 Jul Barnstable

Partly sunny in the Morning, then mostly cloudy with a slight chance of Showers in the afternoon. Humid with Highs in the upper 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 21 Jul Barnstable

Showers with a chance of Thunderstorms. Humid with Lows around 70. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chatham Harbor Entrance Temperature Statistics

July Temperature

Chatham, Chatham Municipal Airport (3.1 miles)

  • Lowest 13 July, 2026

    59 °F

  • Average July

    72.4 °F

  • Highest 3 July, 2026

    91 °F

Climate (2021–2026)

Chatham, Chatham Municipal Airport (3.1 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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