Great Marshes Weather Forecast

    • 31
    • 38

    Rain

    • 33
    • 41

    Partly Sunny

    • 38
    • 48

    Slight Chance Rain

    • 39
    • 51

    Chance Rain

    • 26
    • 51

    Slight Chance Rain

    • 27
    • 37

    Mostly Sunny

Today 23 Mar Barnstable

Rain, then rain and snow Showers likely. Near steady temperature in the upper 30s. North Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of precipitation 90 percent.

Tonight 23 Mar Barnstable

Mostly cloudy. A chance of snow Showers in the evening. Near steady temperature in the mid 30s. North Winds 15 to 20 Mph with Gusts up to 30 Mph, Diminishing to 5 to 10 Mph with Gusts up to 20 Mph after midnight. Chance of snow 50 percent.

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Great Marshes Temperature Statistics

March Temperature

Hyannis, Barnstable Municipal-Boardman Airport (5.6 miles)

  • Lowest 2 March, 2026

    12.9 °F

  • Average March

    38.6 °F

  • Highest 9 March, 2026

    63 °F

Climate (2021–Present)

Hyannis, Barnstable Municipal-Boardman Airport (5.6 miles)

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  • Average Low 2021–2026

    44.9 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    59.5 °F
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