Cohasset Weather Forecast

    • 54
    • 65

    Mostly Cloudy

    • 56
    • 69

    Mostly Cloudy

    • 61
    • 72

    Slight Chance Rain Showers

    • 64
    • 80

    Mostly Cloudy

    • 65
    • 84

    Chance Rain Showers

    • 62
    • 81

    Slight Chance Thunderstorms

    • 63
    • 78

    Partly Sunny

Today 15 Jun Eastern Plymouth

Partly sunny. Near steady temperature in the lower 60s. East Winds 5 to 10 Mph.

Tonight 15 Jun Eastern Plymouth

Mostly cloudy. Patchy fog after midnight. Lows in the mid 50s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cohasset Temperature Statistics

June Temperature

Marshfield Airport (11.8 miles)

  • Lowest 2 June, 2025

    46.4 °F

  • Average June

    65.2 °F

  • Highest 12 June, 2025

    87.8 °F

Climate (2020–Present)

Marshfield Airport (11.8 miles)

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  • Average Low 2020–2025

    44.9 °F

  • Average 2020–2025

    53.1 °F

  • Average High 2020–2025

    60.9 °F
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