Dennis Weather Forecast

    • 58
    • 76

    Mostly Sunny

    • 68
    • 80

    Mostly Sunny

    • 71
    • 82

    Mostly Sunny

    • 70
    • 86

    Partly Sunny

    • 68
    • 82

    Slight Chance Rain Showers

    • 68
    • 81

    Slight Chance Rain Showers

Today 22 Jul Barnstable

Sunny. Highs in the mid 70s. Northeast Winds 5 to 10 Mph.

Tonight 22 Jul Barnstable

Mostly clear. Lows in the upper 50s. South Winds around 5 Mph, becoming southwest after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Dennis Temperature Statistics

July Temperature

Hyannis, Barnstable Municipal-Boardman Airport (5.6 miles)

  • Lowest 5 July, 2025

    53.7 °F

  • Average July

    73.4 °F

  • Highest 8 July, 2025

    88.6 °F

Climate (2020–Present)

Hyannis, Barnstable Municipal-Boardman Airport (5.6 miles)

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

  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    59.9 °F
Get WillyWeather+ to remove ads