Hyannis Port Weather Forecast

    • 36
    • 45

    Increasing Clouds

    • 40
    • 46

    Rain Likely

    • 40
    • 50

    Slight Chance Rain Showers

    • 39
    • 50

    Partly Sunny

    • 40
    • 50

    Mostly Cloudy

    • 42
    • 51

    Partly Sunny

Today 21 Apr Barnstable

Mostly sunny. Highs in the mid 40s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming east this afternoon.

Tonight 21 Apr Barnstable

Partly cloudy. Near steady temperature in the upper 30s. South Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Hyannis Port Temperature Statistics

April Temperature

Hyannis, Barnstable Municipal-Boardman Airport (3.1 miles)

  • Lowest 9 April, 2026

    24.1 °F

  • Average April

    46.4 °F

  • Highest 15 April, 2026

    72 °F

Climate (2021–Present)

Hyannis, Barnstable Municipal-Boardman Airport (3.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    44.9 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    59.4 °F
Get WillyWeather+ to remove ads