Dartmouth Weather Forecast

    • 49
    • 69

    Rain Showers

    • 46
    • 62

    Rain Showers

    • 51
    • 70

    Mostly Sunny

    • 53
    • 73

    Mostly Sunny

    • 58
    • 80

    Partly Sunny

    • 63
    • 85

    Partly Sunny

Today 31 May Southern Bristol

Mostly cloudy with a chance of Showers with isolated Thunderstorms. Not as cool. Near steady temperature in the upper 60s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 31 May Southern Bristol

Cloudy. Showers likely with isolated Thunderstorms in the Evening, then a slight chance of Showers after midnight. Lows in the upper 40s. West Winds around 5 Mph. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dartmouth Temperature Statistics

May Temperature

New Bedford, New Bedford Regional Airport (4.3 miles)

  • Lowest 3 May, 2026

    36 °F

  • Average May

    58 °F

  • Highest 20 May, 2026

    91 °F

Climate (2021–Present)

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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