Swan River Mouth Weather Forecast

    • 47
    • 54

    Partly Sunny

    • 51
    • 55

    Rain Showers

    • 48
    • 57

    Chance Rain Showers

    • 47
    • 53

    Rain Showers

    • 47
    • 57

    Slight Chance Rain Showers

    • 49
    • 58

    Chance Rain Showers

    • 48
    • 58

    Chance Rain Showers

Today 8 May Barnstable

Partly sunny with a 20 percent chance of Showers. Near steady temperature in the upper 50s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 8 May Barnstable

Partly cloudy. Isolated Showers this evening. Lows in the mid 40s. Southwest Winds 10 to 15 Mph, becoming west around 5 Mph after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Swan River Mouth Temperature Statistics

May Temperature

Hyannis, Barnstable Municipal-Boardman Airport (5.6 miles)

  • Lowest 3 May, 2026

    37.9 °F

  • Average May

    53 °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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