East Harwich Weather Forecast

    • 68
    • 79

    Rain

    • 67
    • 70

    Rain

    • 68
    • 74

    Rain Showers

    • 69
    • 78

    Chance Rain Showers

    • 63
    • 82

    Mostly Sunny

    • 64
    • 80

    Mostly Sunny

    • 68
    • 81

    Slight Chance Rain Showers

Today 20 Aug Barnstable

Mostly sunny. Near steady temperature in the upper 70s. South Winds 5 to 10 Mph.

Tonight 20 Aug Barnstable

Rain. Lows in the upper 60s. West Winds 5 to 10 Mph, becoming northeast with Gusts up to 20 Mph after midnight. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

East Harwich Temperature Statistics

August Temperature

Chatham, Chatham Municipal Airport (1.9 miles)

  • Lowest 16 August, 2026

    59 °F

  • Average August

    73.6 °F

  • Highest 11 August, 2026

    84.9 °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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