Dartmouth Weather Forecast

    • 56
    • 75

    Sunny

    • 60
    • 80

    Partly Sunny

    • 67
    • 76

    Slight Chance Rain Showers

    • 61
    • 82

    Slight Chance Rain Showers

    • 56
    • 75

    Mostly Sunny

    • 59
    • 74

    Mostly Sunny

Today 7 Sep Southern Bristol

Sunny. Highs in the mid 70s. Northwest Winds 5 to 10 Mph.

Tonight 7 Sep Southern Bristol

Mostly clear. Lows in the mid 50s. West Winds around 5 Mph.

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Dartmouth Temperature Statistics

September Temperature

New Bedford, New Bedford Regional Airport (4.3 miles)

  • Lowest 2 September, 2026

    55.9 °F

  • Average September

    68.4 °F

  • Highest 4 September, 2026

    82.9 °F

Climate (2021–2026)

New Bedford, New Bedford Regional Airport (4.3 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    61.9 °F
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