Onset Island Weather Forecast

    • 29
    • 47

    Chance Rain

    • 37
    • 45

    Partly Sunny

    • 34
    • 47

    Partly Sunny

    • 46
    • 51

    Chance Rain

    • 41
    • 56

    Chance Rain

    • 34
    • 49

    Chance Rain

Today 22 Nov Southern Plymouth

Cloudy with Showers in the Morning, then partly sunny with a slight chance of Showers in the afternoon. Highs in the upper 40s. North Winds 5 to 10 Mph. Chance of rain 90 percent.

Tonight 22 Nov Southern Plymouth

Mostly cloudy with a 30 percent chance of rain. Patchy fog. Near steady temperature around 40. West Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Onset Island Temperature Statistics

November Temperature

Otis Air National Guard Base (8.7 miles)

  • Lowest 19 November, 2025

    23 °F

  • Average November

    44.3 °F

  • Highest 8 November, 2025

    60.8 °F

Climate (2020–Present)

Otis Air National Guard Base (8.7 miles)

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  • Average Low 2020–2025

    44 °F

  • Average 2020–2025

    52.1 °F

  • Average High 2020–2025

    59.3 °F
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