Mystic River - Island End River Weather Forecast

    • 78
    • 102

    Hot

    • 65
    • 91

    Chance Thunderstorms

    • 60
    • 71

    Chance Rain Showers

    • 60
    • 69

    Chance Rain Showers

    • 64
    • 70

    Chance Rain Showers

    • 67
    • 80

    Slight Chance Thunderstorms

Today 24 Jun Suffolk

Sunny, warmer. Near steady temperature in the upper 90s. West Winds 10 to 15 Mph. Heat index Values up to 110.

Tonight 24 Jun Suffolk

Mostly clear. Humid with Lows in the upper 70s. West Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening. Heat index Values up to 106 early in the evening.

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Mystic River - Island End River Temperature Statistics

June Temperature

Boston, Logan International Airport (2.5 miles)

  • Lowest 2 June, 2025

    51.7 °F

  • Average June

    67.6 °F

  • Highest 22 June, 2025

    93 °F

Climate (2020–Present)

Boston, Logan International Airport (2.5 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    61.1 °F
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