Mystic River - Island End River Weather Forecast

    • 69
    • 86

    Increasing Clouds

    • 69
    • 86

    Mostly Cloudy

    • 69
    • 83

    Rain Showers

    • 68
    • 84

    Chance Rain Showers

    • 70
    • 83

    Chance Rain Showers

    • 71
    • 87

    Chance Rain Showers

Today 1 Aug Suffolk

Partly sunny. A slight chance of Showers with isolated Thunderstorms this afternoon. Highs in the mid 80s. West Winds around 5 Mph, becoming southeast this afternoon. Chance of rain 20 percent.

Tonight 1 Aug Suffolk

Mostly cloudy. Humid with Lows in the upper 60s. Southwest Winds 5 to 10 Mph.

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Mystic River - Island End River Temperature Statistics

August Temperature

Boston, Logan International Airport (2.5 miles)

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  • Average August

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Climate (2021–2026)

Boston, Logan International Airport (2.5 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    61 °F
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