Cohasset Weather Forecast

    • 3
    • 16

    Mostly Sunny

    • 14
    • 22

    Partly Sunny

    • 19
    • 27

    Snow Likely

    • 17
    • 33

    Partly Sunny

    • 16
    • 33

    Partly Sunny

    • 13
    • 30

    Partly Sunny

Today 30 Jan Eastern Plymouth

Sunny, cold with Highs around 16. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Wind chill Values as low as 15 below in the morning.

Tonight 30 Jan Eastern Plymouth

Mostly clear. Cold with Lows around 3 above. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cohasset Temperature Statistics

January Temperature

Marshfield Airport (11.8 miles)

  • Lowest 24 January, 2026

    6.8 °F

  • Average January

    30.2 °F

  • Highest 9 January, 2026

    53.6 °F

Climate (2021–Present)

Marshfield Airport (11.8 miles)

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  • Average Low 2021–2026

    44.2 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    60.3 °F
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