Mystic River - Island End River Weather Forecast

    • 51
    • 69

    Chance Rain Showers

    • 59
    • 63

    Rain Showers Likely

    • 53
    • 74

    Partly Sunny

    • 47
    • 62

    Rain Showers Likely

    • 44
    • 63

    Rain Showers

    • 36
    • 52

    Partly Sunny

    • 41
    • 52

    Mostly Sunny

Today 12 Oct Suffolk

Sunny. Not as cool with Highs in the upper 60s. Northwest Winds around 5 Mph.

Tonight 12 Oct Suffolk

Mostly cloudy. Lows in the lower 50s. Northwest Winds around 5 Mph, becoming northeast with Gusts up to 20 Mph after midnight.

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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 7 October, 2026

    43.6 °F

  • Average October

    62.1 °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

    46.6 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    61 °F
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