Harwich Center Weather Forecast

    • 26
    • 33

    Decreasing Clouds

    • 30
    • 36

    Partly Sunny

    • 36
    • 45

    Chance Rain

    • 36
    • 48

    Chance Rain

    • 33
    • 48

    Chance Rain

    • 28
    • 42

    Mostly Sunny

Today 18 Mar Barnstable

Mostly sunny. Colder with Highs in the mid 30s. Northwest Winds 5 to 10 Mph with Gusts up to 25 Mph, becoming north this afternoon.

Tonight 18 Mar Barnstable

Partly cloudy. Lows in the upper 20s. South Winds around 5 Mph.

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Harwich Center Temperature Statistics

March Temperature

Chatham, Chatham Municipal Airport (3.7 miles)

  • Lowest 3 March, 2026

    15.1 °F

  • Average March

    38.7 °F

  • Highest 9 March, 2026

    59 °F

Climate (2021–Present)

Chatham, Chatham Municipal Airport (3.7 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    59.9 °F
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