Dartmouth Weather Forecast

    • 26
    • 56

    Rain

    • 31
    • 42

    Partly Sunny

    • 21
    • 45

    Partly Sunny

    • 22
    • 34

    Partly Sunny

    • 30
    • 42

    Chance Rain

    • 23
    • 40

    Slight Chance Snow

Today 19 Dec Southern Bristol

Rain with isolated Thunderstorms. Patchy fog. Very windy with Highs in the upper 50s. South Winds 25 to 35 Mph with Gusts up to 60 Mph. Chance of rain 90 percent.

Tonight 19 Dec Southern Bristol

Mostly cloudy with a chance of rain in the Evening, then mostly clear after midnight. Blustery, cooler with Lows in the mid 20s. West Winds 15 to 25 Mph with Gusts up to 45 Mph. Chance of rain 50 percent.

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Dartmouth Temperature Statistics

December Temperature

New Bedford, New Bedford Regional Airport (4.3 miles)

  • Lowest 9 December, 2025

    10.9 °F

  • Average December

    31 °F

  • Highest 10 December, 2025

    50 °F

Climate (2020–Present)

New Bedford, New Bedford Regional Airport (4.3 miles)

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  • Average Low 2020–2025

    43.6 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    62.2 °F
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