Harwich Weather Forecast

    • 62
    • 78

    Mostly Sunny

    • 63
    • 79

    Mostly Sunny

    • 63
    • 80

    Mostly Sunny

    • 65
    • 80

    Partly Sunny

    • 65
    • 79

    Mostly Cloudy

    • 66
    • 79

    Mostly Cloudy

Today 2 Aug Barnstable

Sunny. Highs in the mid 70s. Northeast Winds 5 to 10 Mph.

Tonight 2 Aug Barnstable

Mostly clear. Lows in the lower 60s. Southeast Winds around 5 Mph, becoming southwest after midnight.

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Harwich Temperature Statistics

August Temperature

Chatham, Chatham Municipal Airport (4.3 miles)

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Climate (2020–Present)

Chatham, Chatham Municipal Airport (4.3 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    54.1 °F

  • Average High 2020–2025

    60.2 °F
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