Dartmouth Weather Forecast

    • 52
    • 75

    Partly Sunny

    • 55
    • 75

    Slight Chance Rain Showers

    • 54
    • 72

    Slight Chance Rain Showers

    • 55
    • 79

    Partly Sunny

    • 50
    • 72

    Mostly Sunny

    • 53
    • 72

    Partly Sunny

Today 8 Sep Southern Bristol

Partly sunny. Highs in the mid 70s. North Winds 5 to 10 Mph, becoming northeast in the afternoon.

Tonight 8 Sep Southern Bristol

Partly cloudy. Lows in the lower 50s. East Winds around 5 Mph, becoming northeast after midnight.

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Dartmouth Temperature Statistics

September Temperature

New Bedford, New Bedford Regional Airport (4.3 miles)

  • Lowest 4 September, 2025

    46 °F

  • Average September

    64.1 °F

  • Highest 2 September, 2025

    75.9 °F

Climate (2020–Present)

New Bedford, New Bedford Regional Airport (4.3 miles)

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  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    53.2 °F

  • Average High 2020–2025

    62.4 °F
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