Dartmouth Weather Forecast

    • 58
    • 80

    Mostly Sunny

    • 63
    • 82

    Mostly Sunny

    • 68
    • 81

    Rain Showers

    • 62
    • 83

    Rain Showers

    • 61
    • 80

    Slight Chance Rain Showers

    • 63
    • 81

    Mostly Sunny

    • 64
    • 83

    Partly Sunny

Today 19 Jul Southern Bristol

Sunny. Near steady temperature in the upper 70s. Northwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 19 Jul Southern Bristol

Mostly clear. Cooler with Lows in the upper 50s. Northwest Winds 5 to 10 Mph.

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Dartmouth Temperature Statistics

July Temperature

New Bedford, New Bedford Regional Airport (4.3 miles)

  • Lowest 13 July, 2026

    55 °F

  • Average July

    74.2 °F

  • Highest 2 July, 2026

    97 °F

Climate (2021–2026)

New Bedford, New Bedford Regional Airport (4.3 miles)

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  • Average Low 2021–2026

    43.2 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    61.9 °F
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