Harwich Weather Forecast

    • 29
    • 46

    Increasing Clouds

    • 30
    • 39

    Partly Sunny

    • 20
    • 35

    Mostly Cloudy

    • 30
    • 36

    Chance Snow Showers

    • 30
    • 39

    Partly Sunny

    • 23
    • 36

    Partly Sunny

Today 18 Jan Barnstable

Sunny. Highs in the mid 40s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 18 Jan Barnstable

Partly cloudy in the Evening, then clearing. Lows in the upper 20s. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

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Harwich Temperature Statistics

January Temperature

Chatham, Chatham Municipal Airport (4.3 miles)

  • Lowest 11 January, 2021

    24.1 °F
  • Average January

    38.1 °F
  • Highest 16 January, 2021

    51.1 °F

Climate (2010–Present)

Chatham, Chatham Municipal Airport (4.3 miles)

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  • Average Low 2010–Present

    45.8 °F
  • Average 2010–Present

    52 °F
  • Average High 2010–Present

    58 °F
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