Osterville Weather Forecast

    • 66
    • 71

    Rain Showers Likely

    • 67
    • 72

    Rain Showers

    • 70
    • 77

    Chance Rain Showers

    • 66
    • 78

    Mostly Sunny

    • 66
    • 75

    Mostly Sunny

    • 68
    • 77

    Partly Sunny

Today 21 Aug Barnstable

Showers likely. Patchy fog. Cooler. Near steady temperature around 70. Northeast Winds 10 to 15 Mph. Chance of rain 70 percent.

Tonight 21 Aug Barnstable

Cloudy with a 50 percent chance of Showers. Patchy fog. Humid. Near steady temperature in the upper 60s. Northeast Winds 10 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Osterville Temperature Statistics

August Temperature

Hyannis, Barnstable Municipal-Boardman Airport (6.2 miles)

  • Lowest 16 August, 2026

    55.9 °F

  • Average August

    74.6 °F

  • Highest 7 August, 2026

    88 °F

Climate (2021–2026)

Hyannis, Barnstable Municipal-Boardman Airport (6.2 miles)

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

  • Average Low 2021–2026

    44.8 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    59.3 °F
Get WillyWeather+ to remove ads