South Harwich Weather Forecast

    • 66
    • 73

    Mostly Sunny

    • 67
    • 74

    Chance Rain Showers

    • 67
    • 74

    Rain Showers

    • 66
    • 75

    Chance Rain Showers

    • 68
    • 76

    Partly Sunny

    • 69
    • 77

    Partly Sunny

Today 27 Jul Barnstable

Sunny. Highs in the mid 70s. North Winds around 5 Mph.

Tonight 27 Jul Barnstable

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 60s. South Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

South Harwich Temperature Statistics

July Temperature

Chatham, Chatham Municipal Airport (2.5 miles)

  • Lowest 20 July, 2026

    57.9 °F

  • Average July

    71.8 °F

  • Highest 3 July, 2026

    91 °F

Climate (2021–2026)

Chatham, Chatham Municipal Airport (2.5 miles)

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

  • Average Low 2021–2026

    47.4 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    59.8 °F
Get WillyWeather+ to remove ads