Mystic River - Island End River Weather Forecast

    • 34
    • 54

    Sunny

    • 44
    • 59

    Sunny

    • 48
    • 70

    Partly Sunny

    • 51
    • 66

    Partly Sunny

    • 54
    • 68

    Partly Sunny

    • 56
    • 69

    Chance Rain Showers

    • 50
    • 65

    Rain Showers Likely

Today 31 Oct Suffolk

Mostly cloudy with a 50 percent chance of Showers. Highs in the upper 50s.

Tonight 31 Oct Suffolk

Clear. Lows in the mid 30s. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mystic River - Island End River Temperature Statistics

October Temperature

Boston, Logan International Airport (2.5 miles)

  • Lowest 18 October, 2026

    37.7 °F

  • Average October

    57 °F

  • Highest 2 October, 2026

    87.7 °F

Climate (2021–2026)

Boston, Logan International Airport (2.5 miles)

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  • Average Low 2021–2026

    46.5 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    60.9 °F
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