Great Marshes Weather Forecast

    • 48
    • 61

    Rain Showers

    • 50
    • 62

    Mostly Sunny

    • 53
    • 64

    Rain Showers

    • 51
    • 66

    Rain Showers

    • 52
    • 65

    Slight Chance Rain Showers

    • 55
    • 72

    Partly Sunny

Today 11 May Barnstable

Partly sunny with a 20 percent chance of Showers. Near steady temperature in the upper 50s. Northeast Winds around 5 Mph.

Tonight 11 May Barnstable

Mostly cloudy with a slight chance of Showers in the Evening, then mostly clear after midnight. Lows in the upper 40s. Southwest Winds around 5 Mph, becoming northwest after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Great Marshes Temperature Statistics

May Temperature

Hyannis, Barnstable Municipal-Boardman Airport (5.6 miles)

  • Lowest 3 May, 2026

    37.9 °F

  • Average May

    52.9 °F

  • Highest 4 May, 2026

    63 °F

Climate (2021–Present)

Hyannis, Barnstable Municipal-Boardman Airport (5.6 miles)

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  • Average Low 2021–2026

    44.8 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    59.3 °F
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