Onset Beach Weather Forecast

    • 42
    • 62

    Partly Sunny

    • 47
    • 53

    Chance Rain Showers

    • 46
    • 58

    Slight Chance Rain Showers

    • 50
    • 59

    Partly Sunny

    • 56
    • 63

    Mostly Cloudy

    • 53
    • 63

    Rain Showers Likely

Today 15 Oct Southern Plymouth

Partly sunny. Highs in the mid 60s. North Winds 10 to 15 Mph.

Tonight 15 Oct Southern Plymouth

Partly cloudy in the Evening, then clearing. Lows around 40. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Onset Beach Temperature Statistics

October Temperature

Otis Air National Guard Base (9.3 miles)

  • Lowest 3 October, 2025

    37.4 °F

  • Average October

    58.3 °F

  • Highest 5 October, 2025

    80.6 °F

Climate (2020–Present)

Otis Air National Guard Base (9.3 miles)

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  • Average Low 2020–2025

    44.1 °F

  • Average 2020–2025

    52.2 °F

  • Average High 2020–2025

    59.4 °F
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