Chatham Harbor Weather Forecast

    • 34
    • 39

    Increasing Clouds

    • 38
    • 45

    Slight Chance Rain

    • 39
    • 52

    Rain Likely

    • 27
    • 49

    Rain Likely

    • 29
    • 36

    Partly Sunny

    • 34
    • 42

    Partly Sunny

    • 34
    • 46

    Partly Sunny

Today 24 Mar Barnstable

Mostly sunny. Near steady temperature around 40. Northeast Winds 5 to 10 Mph.

Tonight 24 Mar Barnstable

Partly cloudy this Evening, then becoming mostly cloudy. Lows in the lower 30s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chatham Harbor Temperature Statistics

March Temperature

Chatham, Chatham Municipal Airport (1.9 miles)

  • Lowest 3 March, 2026

    15.1 °F

  • Average March

    38.5 °F

  • Highest 9 March, 2026

    59 °F

Climate (2021–Present)

Chatham, Chatham Municipal Airport (1.9 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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