Mystic River - Island End River Weather Forecast

    • 61
    • 81

    Partly Sunny

    • 62
    • 78

    Rain Showers

    • 63
    • 78

    Rain Showers Likely

    • 63
    • 86

    Mostly Sunny

    • 66
    • 85

    Chance Rain Showers

    • 67
    • 83

    Chance Rain Showers

    • 66
    • 88

    Chance Rain Showers

Today 21 Jun Suffolk

Partly cloudy. A chance of Showers. Highs in the lower 80s. Lows in the lower 60s. Chance of rain 30 percent.

Tonight 21 Jun Suffolk

Partly cloudy. A chance of Showers. Highs in the lower 80s. Lows in the lower 60s. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mystic River - Island End River Temperature Statistics

June Temperature

Boston, Logan International Airport (2.5 miles)

  • Lowest 1 June, 2026

    49.6 °F

  • Average June

    72.8 °F

  • Highest 14 June, 2026

    91.7 °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

    53.6 °F

  • Average High 2021–2026

    61 °F
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