Dartmouth Weather Forecast

    • 66
    • 79

    Chance Rain Showers

    • 67
    • 76

    Rain Showers Likely

    • 65
    • 81

    Partly Sunny

    • 67
    • 83

    Chance Rain Showers

    • 60
    • 82

    Chance Rain Showers

    • 60
    • 80

    Slight Chance Rain Showers

    • 62
    • 78

    Chance Rain Showers

Today 16 Aug Southern Bristol

Sunny. Near steady temperature in the upper 70s. South Winds 10 to 15 Mph.

Tonight 16 Aug Southern Bristol

Mostly cloudy. A chance of Showers after midnight. Not as cool with Lows in the mid 60s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

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Dartmouth Temperature Statistics

August Temperature

New Bedford, New Bedford Regional Airport (4.3 miles)

  • Lowest 5 August, 2026

    57 °F

  • Average August

    74.9 °F

  • Highest 7 August, 2026

    91 °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

    52.8 °F

  • Average High 2021–2026

    61.9 °F
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