Cohasset Weather Forecast

    • 59
    • 81

    Chance Thunderstorms

    • 60
    • 81

    Mostly Sunny

    • 61
    • 83

    Partly Sunny

    • 66
    • 85

    Chance Rain Showers

    • 64
    • 88

    Chance Rain Showers

    • 63
    • 86

    Mostly Sunny

Today 15 Jun Eastern Plymouth

Mostly sunny. Near steady temperature in the lower 80s. North Winds 5 to 10 Mph.

Tonight 15 Jun Eastern Plymouth

Partly cloudy in the Evening, then clearing. Lows in the upper 50s. Northwest Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Cohasset Temperature Statistics

June Temperature

Marshfield Airport (11.8 miles)

  • Lowest 2 June, 2026

    41 °F

  • Average June

    69 °F

  • Highest 12 June, 2026

    89.6 °F

Climate (2021–Present)

Marshfield Airport (11.8 miles)

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

  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    60.1 °F
Get WillyWeather+ to remove ads