Mystic River - Island End River Weather Forecast

    • 62
    • 81

    Sunny

    • 64
    • 84

    Mostly Sunny

    • 68
    • 82

    Rain Showers

    • 64
    • 85

    Rain Showers

    • 62
    • 79

    Mostly Sunny

    • 65
    • 80

    Mostly Sunny

    • 65
    • 84

    Partly Sunny

Today 19 Jul Suffolk

Sunny. Near steady temperature in the upper 70s. Northwest Winds 10 to 15 Mph.

Tonight 19 Jul Suffolk

Clear. Lows in the lower 60s. Northwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mystic River - Island End River Temperature Statistics

July Temperature

Boston, Logan International Airport (2.5 miles)

  • Lowest 8 July, 2026

    61.6 °F

  • Average July

    78.4 °F

  • Highest 2 July, 2026

    101.6 °F

Climate (2021–2026)

Boston, Logan International Airport (2.5 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    61 °F
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